Castle Hill (NSW)

Suburb (SAL)

Greater Sydney / Baulkham Hills

 
 
 
 
 
 
 
Data Sources ABSValuer GeneralRental BoardACARA Newest Aug 2026 · Refreshed ABS QuickStats SAL10846 How we calculate this
Chart Color Schemes
Loading map data ...
Suburb (SAL) Boundary Analysis

This analysis uses Suburbs and Localities (SAL) boundaries, which can materially differ from Statistical Areas (SA2) even when sharing the same name.

SAL boundaries are defined by Australia Post and the Australian Bureau of Statistics to represent commonly-known suburb names used in postal addresses.

Statistical Areas (SA2) are designed for census data collection and may combine multiple suburbs or use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.

0 People

est. as @ -- *

2021 Census | -- people

Land Area
--
Land Area
Population Density
--
Density
Unemployment Rate
--
Unemployment
Development
--
Resi Approvals
Get My Report

Sales ActivityProperty Sales Trends in Castle Hill (NSW)

Table Chart PROFILE FAQ

The median house price in Castle Hill (NSW) is $2.59m, with units at $1.03m. House values have moved 5.3% a year compounded over five years.

Curious about local property values? Filter the chart to assess the volume and appreciation (including resales) trends and regional comparisons, or scroll to the map below view this information at an individual property level.

Find a Recent Sale
Type Specified (1) | Limit 50

Sales Detail

Loading rental data…

DemographicsPopulation Growth in Castle Hill (NSW)

Table Chart PROFILE FAQ

Castle Hill (NSW) has an estimated 43,390 residents, up from 40,874 at the 2021 Census — a change of 2,516 people, or 6.2%. Growth has averaged 0.7% a year over five years. 1,931 new addresses have been validated here since Census night. Overseas migration accounts for 97.0% of that increase. That puts 2,302 residents on each square kilometre. Population is estimated from ABS Estimated Resident Population releases and GNAF address data, re-based from the 2021 Census and updated annually.

Detail

Analysis of ABS population updates for the wider region and new address data validated by AreaSearch since the Census indicates the population of the suburb of Castle Hill (NSW) is approximately 43,390 as of May 2026. This represents a growth of 2,516 people (6.2%) since the 2021 Census, which documented a population of 40,874 people. This shift is derived from the resident population of 43,224, calculated by AreaSearch using the latest ABS ERP data release (June 2025) and an additional 1,931 validated new addresses since the Census date. This population level represents a density ratio of 2,301 persons per square kilometer, which exceeds the national location average assessed by AreaSearch.

The 6.2% growth of the suburb of Castle Hill (NSW) since the 2021 census was higher than the SA3 area (5.3%), making it a regional growth leader. Population growth in the area was mostly driven by overseas migration, which made up roughly 97.0% of all population gains during recent times. AreaSearch applies ABS/Geoscience Australia projections for each SA2 area, published in 2024 with 2022 as the base year. For SA2 areas without this data, AreaSearch uses the NSW State Government's SA2 level projections, published in 2022 with 2021 as the base year. Age group growth rates from these datasets are also applied to all areas for the years 2032 to 2041. Looking at future demographic trends, a major population rise is predicted for the top quartile of statistical areas analyzed by AreaSearch, with the suburb of Castle Hill (NSW) expected to expand by 16,136 persons to 2041 based on aggregated SA2-level projections, which is an increase of 36.6% in total over the 16 years.

Frequently Asked Questions - Population

What is the latest population estimate for the suburb of Castle Hill?
Total population for the suburb of Castle Hill was estimated to be approximately 43,390 as at May 26. This is based upon an estimated resident population of 43,224 from the ABS up to June 2025.
How has the population in the suburb of Castle Hill changed since 2021?
The suburb of castle hill has added approximately 2,516 people and shown a 6.16% increase from the 40,874 people recorded at the 2021 Census period.
What is the population density in the suburb of Castle Hill?
The population density in the suburb of Castle Hill is estimated at 2,301 persons per square kilometer based on the latest population estimate.
How much has the population grown over the past 10 years in the suburb of Castle Hill?
Over the past 10 years, the population in the suburb of Castle Hill has shown a compound annual growth rate of 0.6% per annum.
What are the main drivers of population growth in the suburb of Castle Hill?
Population growth in the suburb of Castle Hill is driven by: Overseas migration (97.0%), Natural increase (3.0%), Interstate migration (0.0%). The primary driver is Overseas migration, contributing 97.0% of overall population gains.

Residential SupplyHousing Development & Building Approvals in Castle Hill (NSW)

Table Chart PROFILE FAQ

3,973 new dwellings have been approved in Castle Hill (NSW) over the past five years, an average of 794 a year. That places the area in the 83rd percentile for residential development activity nationally, about 18 approvals per 1,000 residents a year. Of the 926 dwellings approved in the latest reporting year, 7% were detached houses and the rest townhouses or apartments. Approvals are currently running at an annualised 1,104, running ahead of that longer-run average. Figures come from ABS building approvals aggregated to this Suburb (SAL) boundary and are updated monthly as the ABS releases them.

Detail

Based on AreaSearch analysis of ABS building approval figures allocated from statistical area data, Castle Hill has recorded an annual average of about 794 new dwelling approvals, totaling an estimated 3,973 homes over the last 5 financial years. Thus far in FY-26, 1,012 approvals have been documented. With an average of only 0.4 new residents per year per constructed dwelling over the past 5 financial years (between FY-21 and FY-25), new construction is keeping pace with or exceeding demand, providing buyers with additional options and supporting population growth that could outpace current forecasts, while new homes are being constructed at an average value of $454,000—slightly above regional standards—indicating a focus on quality development.

Furthermore, $139.2 million in commercial development approvals have been recorded during this financial year, pointing to strong commercial development activity. Compared to Greater Sydney, Castle Hill has 104.0% more building activity per person, which should offer buyers plenty of options. This rate of activity is well above the national average, showing strong developer interest in the locality. New building activity consists of 7.0% detached houses and 93.0% townhouses or apartments. This trend toward denser construction provides accessible entry options and appeals to downsizers, investors, and entry-level buyers. This represents a significant shift from existing housing patterns (currently 74.0% houses), indicating a decline in the availability of developable land and responding to changing lifestyle preferences and housing affordability needs. With about 44 people per dwelling approval, Castle Hill exhibits characteristics of a low density area. Population forecasts suggest Castle Hill will gain 15,883 residents through to 2041 (from the latest AreaSearch quarterly estimate). Based on current development trends, new housing supply should easily satisfy demand, creating favorable conditions for buyers and potentially supporting population growth beyond current forecasts.

Frequently Asked Questions - Development

How many dwelling approvals have occurred in the suburb of Castle Hill recently?
Dwelling approval activity in the the suburb of Castle Hill area has seen 1,931 residential approvals over the past two financial years, based on AreaSearch's SA2 aggregation method. The suburb of Castle Hill's current population of 43,390 has been supported by 794 approvals on average over recent years.
How does the suburb of Castle Hill's development activity compare to the broader region?
The suburb of Castle Hill has seen 1.91 approvals per 100 people in recent years, compared to 0.65 approvals in the broader region. This means that one dwelling has been approved for every 44 people in the suburb of Castle Hill, compared to one for every 190 in the broader region.
Is the suburb of Castle Hill keeping up with housing demand?
With the population expected to increase by 15,883 people by 2041, around 5,295 new dwellings will be necessary. Recent approval levels appear more than sufficient to meet these forecasts, considering the census average of 3.0 persons per dwelling. This suggests that population growth may exceed trend projections in the coming years, supported by a robust housing supply.
What has been the trend in development approvals over the past five years in the suburb of Castle Hill?
Looking at development activity over the past five years, the suburb of Castle Hill's approval levels have been significantly above the yearly average of 794, indicating strong recent growth in development activity.
How many dwellings will be needed to accommodate future population growth in the suburb of Castle Hill?
The population in the suburb of Castle Hill is expected to grow by 15,883 people by 2041, necessitating approximately 5,295 new dwellings. This calculation is based on the current census average of 3.0 persons per dwelling in the area.
How does recent development compare to population growth in the suburb of Castle Hill?
Over the past five years, the population in the suburb of Castle Hill has grown by approximately 7,179 people, while 3,973 residential approvals were recorded. This equates to a ratio of 1.8 people added for each new dwelling approval. This suggests a balanced relationship between population growth and housing supply.
Are there opportunities for residential developers in the suburb of Castle Hill?
With dwelling approval activity running at an average of 794 approvals per year and a population of 43,390, the market appears to be adequately supplied relative to projected housing demand in recent years, suggesting that developers should have a longer-term approach when considering new projects. With the population expected to increase by 15,883 people by 2041, around 5,295 new dwellings will be necessary. Recent approval levels appear more than sufficient to meet these forecasts, considering the census average of 3.0 persons per dwelling. This suggests that population growth may exceed trend projections in the coming years, supported by a robust housing supply.
Approvals Pipeline Development applications near Castle Hill (NSW)

Development applications around Castle Hill (NSW)

Development approvals is a new addition to AreaSearch. We’re actively expanding council coverage and refining the dataset — details and statuses for some councils may be partial. Check back regularly for the latest pipeline.
Applications
In this area
Est. Value
Where disclosed
Under Assessment
Awaiting determination
Determined
Approved or decided
Approvals pipeline Status, location, timing and project scale
Search

Loading development applications…

Lodged Address Description Type Distance Status

SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.

Project PipelineInfrastructure & Major Projects in Castle Hill (NSW)

PROFILE FAQ

AreaSearch tracks 27 current infrastructure and development projects inside Castle Hill (NSW), worth an estimated $16.9 billion. A further 82 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $61 billion. 33 are already under construction and 42 are due for completion within three years. The pipeline spans residential development, communities, precincts & urban renewal and communities. Records are compiled from Infrastructure Australia, state agencies, council planning portals and public announcements, reviewed and updated daily, then ranked by proximity, construction stage, completion horizon and project scale.

Detail

Nothing can influence an area's performance as much as changes to local infrastructure, major projects and planning initiatives. In total 59 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include Hills Showground Village by Deicorp, Hills Shire Council Infrastructure Delivery Program 2025-2026, Levande Hills Showground, and Castle Towers Expansion, with the below list detailing those likely to be of most relevance.

Professional plan users can use the search below to filter and access additional projects.

INFRASTRUCTURE SEARCH
All Selected

AI Generated Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

Frequently Asked Questions - Infrastructure

What are some of the major infrastructure and planning changes likely to influence the suburb of Castle Hill?
Key infrastructure and planning changes likely to influence the suburb of Castle Hill include: Hills Showground Village by Deicorp (Construction); Hills Shire Council Infrastructure Delivery Program 2025-2026 (Construction); Levande Hills Showground (Construction); Castle Towers Expansion (Construction); and Castle Hill RSL Residential Lifestyle Development (Construction). These projects represent significant developments that will shape the area's future infrastructure landscape.
What types of infrastructure projects are impacting the suburb of Castle Hill?
Infrastructure development impacting the suburb of Castle Hill spans multiple sectors including Communities, Residential Development, and Retail, among others.
What is the scale of infrastructure investment impacting the suburb of Castle Hill?
Infrastructure investment analysis indicates substantial capital deployment exceeding $5.1 billion in projects that will impact the extended area, with a notable concentration of investment within the immediate the suburb of Castle Hill vicinity.
How does the suburb of Castle Hill's infrastructure development compare to other areas?
The suburb of Castle Hill ranks in the top 10% nationally for infrastructure development, reflecting exceptional investment activity compared to similar areas across the country.
Castle Towers Expansion
Category: Retail
Stage: Construction | Est. Comp: 2028
Source / Links: Link 1   Link 2  

A major 1.1 billion dollar multi-stage redevelopment transforming Castle Towers into a premier town centre destination. The expansion includes 'The Village', a mixed-use lifestyle precinct featuring over 70 new retail brands, a 200-room luxury hotel designed by Woods Bagot, and a 12-storey A-grade commercial tower known as 2 Castle Street. Construction on a new lifestyle and sports precinct featuring brands like JD Sports and Lululemon commenced in January 2026, alongside a new 155-bay carpark.

Retail

Woodward Indoor Sports Complex
Category: Sports & Recreation
Stage: Construction | Est. Comp: 2026
Source / Links: Link 1   Link 2  

Australia's first Woodward destination, this world-class indoor action sports facility at Castle Towers spans three levels. It features specialized zones for skateboarding, BMX, scootering, parkour, snowboarding, and skiing, along with rock climbing and bouldering walls. The center includes a cafe and retail spaces, designed to foster community engagement and active lifestyles.

Sports & Recreation

Hills Shire Council Infrastructure Delivery Program 2025-2026
Category: Communities
Stage: Construction | Est. Comp: 2027
Source / Links: Link 1   Link 2  

The Hills Shire Council's multi-year infrastructure delivery program, with the 2024-25 plan centred on a $162.8 million capital works spend covering roads, parks, paths and community facilities across the rapidly growing Hills Shire. Major works include the $24.4 million four-laning of Annangrove Road between Withers and Windsor Roads, the $20.2 million Withers Road upgrade, and the $28.5 million Boundary Road transformation including a new bridge over Killarney Chain of Ponds Creek. Additional works include the Livvi's Place expansion at Bernie Mullane Sports Complex, a cycleway along Cattai Creek, and shared pathways along Norwest Boulevard.The 2025-26 Delivery Program 2025-2029 has since been adopted, and a draft 2026-27 Hills Shire Plan proposing a $268 million investment has been released for community feedback. Council continues to advocate for $207 million in NSW Government funding to address a critical infrastructure deficit in the Box Hill growth area.

Communities

Upgrade and Extension to the Carpark for Knightsbridge Shopping Centre
Category: Retail
Stage: Approved | Est. Comp: 2026
Source / Links: Link 1   Link 2  

The project involves the upgrade and extension of the existing carpark at Knightsbridge Shopping Centre to support increased retail activity following the centre's recent refurbishment and the opening of a Woolworths Metro. It includes the construction of additional parking bays, a new Kiss and Drop area, and improved pedestrian access to enhance safety and community convenience in the Castle Hill area.

Retail

Levande Hills Showground Retirement Village
Category: Health
Stage: Construction | Est. Comp: 2027
Source / Links: Link 1   

Construction is underway on Levande Hills Showground, a premium retirement community comprising 217 independent living apartments across five mid-rise buildings in the Hills Showground precinct, adjacent to the Hills Showground Metro Station in Castle Hill. Delivered by Hindmarsh Construction and designed by CHROFI and Turf Design Studio, the development features one, two and three-bedroom apartments including penthouses, centred around a landscaped courtyard and clubhouse with bar and dining, indoor heated pool, gold-class cinema, residents workshop and games room, hair salon and neighbourhood shop.The project is being delivered in three stages, with Stage 1 (two buildings and the clubhouse) anticipated for completion in mid-2027.

Health

Carrington Square - 21-23 Victoria Avenue, Castle Hill
Category: Retail
Stage: Approved | Est. Comp: 2029
Source / Links: Link 1   Link 2  

A 500 million dollar mixed-use redevelopment of a 2.1-hectare site featuring two commercial towers up to 14 storeys, specialised large-format retail, medical suites, a childcare centre, gym, and a hotel. The project includes a sky terrace communal garden and a through-site link between Victoria Avenue and Carrington Road. The planning proposal was finalised with the Local Environmental Plan (LEP) notified in February 2026, facilitating increased height and floor space ratios to support the Norwest Strategic Centre's growth.

Retail

Levande Hills Showground
Category: Communities
Stage: Construction | Est. Comp: 2028
Source / Links: Link 1   

Premium retirement village developed by Levande on a 1.25ha site in the Hills Showground Metro precinct. Comprises 217 independent living apartments (1, 2 and 3 bedroom including penthouses) across five mid-rise buildings centred on a landscaped courtyard preserving mature established trees. Amenities include a wellness clubhouse with bar and dining, indoor heated pool, cinema, residents workshop, games room, hair salon, community piazza and neighbourhood shop. Designed by CHROFI and Turf Design Studio. Constructed by Hindmarsh Construction across three stages.Levande acquired the 14 former residential properties for approximately $46 million in April 2024, replacing a previously approved 242-apartment scheme. Stage 1 (two buildings and clubhouse) targeted for completion mid-2027. Located 650m from Showground Metro Station.

Communities

Hills Showground East Precinct
Category: Communities, Precincts & Urban Renewal
Stage: Construction | Est. Comp: 2028
Source / Links: Link 1   Link 2  

A significant mixed-use development delivering 873 new dwellings across multiple residential buildings. The precinct integrates 3,500sqm of public open space, including a water play area and community gardens, with retail and commercial facilities. It is designed to provide seamless connectivity to the Hills Showground Metro Station as part of the wider Showground Station Precinct urban renewal.

Communities, Precincts & Urban Renewal

Jobs & IndustryEmployment Trends in Castle Hill (NSW)

Table Chart PROFILE FAQ

22,373 residents of Castle Hill (NSW) are employed, from a labour force of 23,160. Unemployment sits at 3.4%, with participation at 64.2%. Weighted for its industry mix, the area's sectors are forecast to grow about 7.1% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.

Detail

Castle Hill has a highly educated workforce, with professional services showing strong representation, an unemployment rate of only 3.4%, and relative employment stability over the past year, based on AreaSearch aggregation of statistical area data. As of March 2026, 22,373 residents are in work while the unemployment rate is 0.7% below Greater Sydney's rate of 4.1%, and workforce participation is somewhat below standard (64.2% compared to Greater Sydney's 69.1%). Based on Census responses, a high 54.3% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

Leading employment industries among residents comprise health care & social assistance, professional & technical, and education & training. Conversely, transport, postal & warehousing shows lower representation at 2.9% versus the regional average of 5.3%. While local employment opportunities exist in the area, it appears many residents commute elsewhere for work, based on the count of Census working population to local population. Based on AreaSearch analysis of SALM and ABS data, aggregated from broader statistical areas, over the 12 months to March 2026, labour force levels decreased by 0.1% combined with employment decreasing by 0.1%, keeping the unemployment rate relatively stable. In contrast, Greater Sydney experienced employment growth of 1.9% and labour force growth of 1.9%, with a marginal drop. Jobs and Skills Australia's national employment forecasts from May-25 can offer further insight into potential future demand within Castle Hill. These projections, covering five and ten-year periods, have been mapped against the local employment profile to estimate growth patterns. While national employment is forecast to expand by 6.6% over five years and 13.7% over ten years, growth rates differ significantly between industry sectors. Applying these industry-specific projections to Castle Hill's employment mix suggests local employment should increase by 7.1% over five years and 14.3% over ten years (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

Frequently Asked Questions - Employment

What is the employment situation in the suburb of Castle Hill?
As of March 2026, the suburb of Castle Hill has approximately 22,373 employed residents with an unemployment rate of 3.4%. This healthy unemployment rate suggests a well-functioning labour market. Employment performance is above the national median, showing positive labour market dynamics.
How does the suburb of Castle Hill's unemployment rate compare to the broader region?
As of March 2026, the unemployment rate in the suburb of Castle Hill stands at 3.4%, which is 0.7 percentage points below Greater Sydney's rate of 4.1%. This lower unemployment rate suggests stronger local employment conditions. For comparison, the national unemployment rate is 4.2%.
What are the major employment sectors in the suburb of Castle Hill?
The employment landscape in the suburb of Castle Hill is dominated by several key sectors. The largest employers are health care & social assistance (13.9% of employment), professional & technical (13.6%), and education & training (10.4%). Other significant employers include retail trade and finance & insurance.
How has employment changed recently in the suburb of Castle Hill?
Over the past year to March 2026, the suburb of Castle Hill has experienced a decline in employment, with total jobs decreasing while the labour force decreased. As a result, the unemployment rate has fall. By comparison, Greater Sydney saw employment increased and its unemployment rate dropped.
What is the workforce participation rate in the suburb of Castle Hill?
The workforce participation rate in the suburb of Castle Hill is 64.2%, which represents the proportion of working-age residents who are either employed or actively seeking work. This healthy participation rate reflects good employment opportunities and workforce engagement. The local rate trailing the Greater Sydney average of 69.1%, showing similar workforce dynamics to the broader region.
Which industries are over-represented in the suburb of Castle Hill's employment market?
The suburb of castle hill shows notable specialization in professional & technical, which employs 13.6% of the local workforce compared to 11.5% regionally. This moderate specialization indicates some local strength in the sector.
What are the employment growth prospects for the suburb of Castle Hill?
Based on Jobs and Skills Australia projections applied to the suburb of Castle Hill's industry mix, employment is expected to grow by 7.1% over the next five years and 14.3% over ten years. This exceeds the national forecast of 6.6% over five years, suggesting the area's industry composition is well-positioned for future growth. Steady growth is anticipated across multiple sectors, providing diverse employment opportunities.
How does the job market in the suburb of Castle Hill compare nationally?
The suburb of castle hill's employment market shows above-average performance nationally, placing in the top half of areas assessed. Employment indicators suggest healthy labour market conditions relative to other regions. Recent job advertisement trends show the broader employment region saw a 5.9% decline, ranking 29.0th out of 37 regions nationally.
What employment opportunities exist for skilled workers in the suburb of Castle Hill?
Skilled workers will find excellent opportunities in the suburb of Castle Hill, with knowledge-intensive sectors comprising 49.2% of local employment. Key sectors for skilled workers include health care & social assistance (13.9%), professional & technical (13.6%), and education & training (10.4%). With projected employment growth of 7.1% over five years, demand for skilled workers is expected to remain strong.

EarningsHousehold Income in Castle Hill (NSW)

Table Chart PROFILE FAQ

Median household income in Castle Hill (NSW) is $2,551 a week (about $133,000 a year), with median personal income at $931 a week. ATO records put median taxable income at $59,533 a year against an average of $87,988. The average runs 48% above the median, a wider spread than most areas and a sign of a concentrated group of high earners. Household income is from the 2021 Census; taxable income is from ATO Taxation Statistics for the latest financial year available, indexed forward using the ABS Wage Price Index.

Detail

AreaSearch's latest postcode level ATO data for financial year 2023 reveals that income in the suburb of Castle Hill is among the highest in Australia, with the median assessed at $59,533 while the average income stands at $87,988. This contrasts to Greater Sydney's figures of a median income of $60,817 and an average income of $83,003. Based on Wage Price Index growth of 10.32% since financial year 2023, current estimates would be approximately $65,677 (median) and $97,068 (average) as of March 2026. According to 2021 Census figures, household incomes rank exceptionally at the 91st percentile ($2,551 weekly).

Looking at income distribution, 29.2% of the population (12,669 individuals) fall within the $4000+ income range, contrasting with the metropolitan region where the $1,500 - 2,999 bracket leads at 30.9%. A significant 43.1% earn above $3,000 weekly, reflecting pockets of prosperity that drive robust local economic activity. High housing costs consume 15.9% of income, though strong earnings still place disposable income at the 90th percentile and the area's SEIFA income ranking places it in the 9th decile.

Frequently Asked Questions - Income

What is the median taxable income in the suburb of Castle Hill?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the suburb of Castle Hill is approximately $65,677. The official ATO data from FY-23 recorded a median of $59,533.
What is the average taxable income in the suburb of Castle Hill?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the suburb of Castle Hill is approximately $97,068. The official ATO data from FY-23 recorded an average of $87,988.
How does the median taxable income in the suburb of Castle Hill compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the suburb of Castle Hill is approximately $65,677 compared to $67,093 in Greater Sydney. The official ATO data from FY-23 shows $59,533 and $60,817 respectively.
How does the average taxable income in the suburb of Castle Hill compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the suburb of Castle Hill is approximately $97,068 compared to $91,569 in Greater Sydney. The official ATO data from FY-23 shows $87,988 and $83,003 respectively.
What are the main income cohorts in the suburb of Castle Hill according to the 2021 Census?
As per the 2021 Census, the income bracket containing the largest proportion (~29.2% / 12,669 persons) of the suburb of Castle Hill's population is the $4000+ cohort.
How do the main income cohorts in the suburb of Castle Hill compare to the region?
The largest income cohort in the suburb of Castle Hill is the $4000+ group, representing about 29.2% of the population. In comparison, Greater Sydney's largest income cohort is the $1,500 - 2,999 group, representing 30.9% of its population, according to the 2021 Census.
What is the median household income in the suburb of Castle Hill according to the 2021 Census?
The 2021 Census data indicates that the median household income in the suburb of Castle Hill is $2,551/wk.
What is the median family income in the suburb of Castle Hill according to the 2021 Census?
According to the 2021 Census, the median family income in the suburb of Castle Hill is $2,858/wk.
What is the median personal income in the suburb of Castle Hill according to the 2021 Census?
The 2021 Census shows that the median personal income in the suburb of Castle Hill is $931/wk.
How does the suburb of Castle Hill's income rank nationally?
As per AreaSearch's latest postcode level ATO data released for FY-23, the suburb of Castle Hill's median income among taxpayers is $59,533, with an average of $87,988. This is extremely high nationally, and compares to Greater Sydney's median of $60,817 and average of $83,003. Based on Wage Price Index growth of 10.32% since FY-23, current estimates would be approximately $65,677 (median) and $97,068 (average) as of March 2026.
What is the disposable income in the suburb of Castle Hill?
The estimated disposable income in the suburb of Castle Hill is $9,296 per year according to AreaSearch analysis.
How does the suburb of Castle Hill's disposable income compare to the region?
The suburb of castle hill's disposable income is $9,296 compared to $7,412 for Greater Sydney, based on AreaSearch analysis.

Housing StockHousing & Dwellings in Castle Hill (NSW)

Table Chart PROFILE FAQ

Castle Hill (NSW) had 13,224 occupied dwellings at the 2021 Census, 74% detached houses and 15% apartments. 39% are owned with a mortgage, 24% rented and 37% owned outright. At that Census the median rent was $560 a week and the median mortgage repayment $3,000 a month, a total housing cost higher than 92% of areas nationally. Rent absorbs 22.0% of household income here and mortgage repayments 27.1%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.

Detail

Dwelling structure within Castle Hill, as evaluated at the latest Census, comprised 73.8% houses and 26.2% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Sydney metro's 55.9% houses and 44.1% other dwellings. Meanwhile, the level of home ownership within Castle Hill was well beyond that of Sydney metro, at 36.7%, with the remainder of dwellings either mortgaged (39.2%) or rented (24.0%). The median monthly mortgage repayment in the area was well above the Sydney metro average at $3,000, while the median weekly rent figure was recorded at $560, compared to Sydney metro's $2,427 and $470.

Nationally, Castle Hill's mortgage repayments are significantly higher than the Australian average of $1,863, while rents are substantially above the national figure of $375.

Frequently Asked Questions - Housing

What percentage of homes are owned vs rented in the suburb of Castle Hill?
In the suburb of Castle Hill, 36.7% of homes are owned outright, 39.2% are owned with a mortgage, and 24.0% are rented.
What percentage of dwellings in the suburb of Castle Hill are houses?
According to the latest data, 73.8% of dwellings in the suburb of Castle Hill are houses.
What percentage of dwellings in the suburb of Castle Hill are apartments or units?
In the suburb of Castle Hill, 15.3% of dwellings are apartments or units, with an additional 10.9% being semi-detached dwellings.
What is the level of outright home ownership in the suburb of Castle Hill?
Outright home ownership in the suburb of Castle Hill stands at 36.7%, compared to 28.7% in Greater Sydney.
What is the median monthly mortgage repayment in the suburb of Castle Hill?
The median monthly mortgage repayment in the suburb of Castle Hill is $3,000, compared to $2,427 in Greater Sydney.
What is the median weekly rent in the suburb of Castle Hill?
The median weekly rent in the suburb of Castle Hill is $560, compared to $470 in Greater Sydney.
What is the distribution of rental prices in the suburb of Castle Hill?
In the suburb of Castle Hill, 2.7% of rentals are $0-149/week, 6.4% are $150-349/week, 60.8% are $350-649/week, 26.4% are $650-949/week, and 3.8% are $950+/week.
What is the average monthly housing cost in the suburb of Castle Hill?
The aggregate monthly housing cost in the suburb of Castle Hill is $1,758, which represents the average monthly cost across all housing types.
What percentage of income do residents spend on housing in the suburb of Castle Hill?
In the suburb of Castle Hill, households with mortgages typically spend 27.1% of their income on mortgage repayments, while renters spend 22.0% of their income on rent.
How crowded are homes in the suburb of Castle Hill?
The average persons per bedroom ratio in the suburb of Castle Hill is 0.8, indicating the level of household density.
How does housing affordability in the suburb of Castle Hill compare to the region?
Housing affordability in the suburb of Castle Hill shows mortgage holders spending 27.1% of income on repayments (vs 27.0% regionally), while renters spend 22.0% of income on rent (vs 22.6% regionally).
What types of dwellings are most common in the suburb of Castle Hill?
The dwelling mix in the suburb of Castle Hill consists of 73.8% detached houses, 10.9% semi-detached dwellings, 15.3% apartments, and 0.0% other dwelling types.
What is the weighted average housing cost based on tenure mix in the suburb of Castle Hill?
Given the tenure profile of the area, the weighted average monthly housing cost is approximately $1,758. This accounts for outright owners paying no housing costs, mortgage holders paying $3,000/month, and renters paying $2,425/month.
How affordable is housing in the suburb of Castle Hill relative to local incomes?
Housing in Castle Hill consumes approximately 15.9% of median household income ($11,046 monthly), indicating costs are highly affordable. The generally accepted benchmark is that housing should not exceed 30% of household income.
How do proposed developments compare to existing housing types in the suburb of Castle Hill?
Recent development applications in Castle Hill show attached dwellings contributing 94% of approvals compared to 26% of existing stock, while detached houses represent 6% of applications versus 74% of current dwellings. This suggests increasing densification. Castle Hill is experiencing exceptional growth in housing density, ranking in the top 10% nationally.

HouseholdsHousehold Composition in Castle Hill (NSW)

Table Chart PROFILE FAQ

Castle Hill (NSW) counted 13,224 households at the 2021 Census, an estimated 14,038 today, averaging 3.0 people each. 48% are couples with children, more than in 93% of areas nationally, against 25% couples without children. 16% of households are people living alone, and families average 1.6 children. Household and family composition is measured only by the Census, so these are 2021 figures.

Detail

Family households dominate at 82.8% of all households, comprising 48.0% couples with children, 24.9% couples without children, and 9.0% single parent families. Non-family households make up the remaining 17.2%, with lone person households at 15.9% and group households comprising 1.3% of the total. The median household size of 3.0 people is larger than the Greater Sydney average of 2.7.

Frequently Asked Questions - Households

How many households are in the suburb of Castle Hill?
As of the 2021 Census, the suburb of Castle Hill had 13,224 households. Based on population growth patterns, this has grown by approximately 6.2% to an estimated 14,038 households today.
What is the typical household size?
The median household size in the suburb of Castle Hill is 3.0 people. This compares to 2.7 in Greater Sydney and reflects the area's household composition mix.
What types of households are most common?
Family households dominate at 82.8% of all households. The remaining households consist of lone person households (15.9%), group households (1.3%), and other household types (0.0%).
How are families structured in the area?
Among the 10,949 family households, 48.0% are couples with children, 24.9% are couples without children at home, and 9.0% are single parent families. This mix shapes local demand for schools, family services, and housing types.
How does the suburb of Castle Hill compare to regional household patterns?
Compared to Greater Sydney, the suburb of Castle Hill shows distinct household patterns. Family households are notably over-represented at 82.8% (versus 72.6% regionally). Conversely, lone person households are under-represented at 15.9% compared to the regional 23.2%. This family-oriented profile influences local demand for family homes, schools, and children's services.
What is the average family size?
Families in the suburb of Castle Hill have an average of 1.6 children, slightly above the Greater Sydney average of 1.5. This influences local demand for child-related services and larger family homes.
What are the marriage patterns in the suburb of Castle Hill?
Marriage patterns reveal 60.1% of the adult population are currently married, while 26.3% have never married. This compares to 48.3% married and 36.4% never married across Greater Sydney.
How significant are single-person households?
Single-person households represent 15.9% of all households in the suburb of Castle Hill, notably lower than the regional average of 23.2%. This affects demand for smaller dwellings and single-person accommodation.
Are shared living arrangements common?
Group households (unrelated people sharing) account for 1.3% of households, well below the Greater Sydney average of 4.2%. This low rate suggests limited student or young professional shared accommodation.
Loading household composition data...

EducationSchools & Education in Castle Hill (NSW)

Table Chart PROFILE FAQ

47.0% of adults in Castle Hill (NSW) hold a university qualification, including 29.3% with a bachelor degree and 14.6% with postgraduate qualifications, higher than 93% of areas nationally. A further 12.9% hold a vocational qualification. 14 schools serve the area, with 9,712 enrolment places and an average ICSEA of 1,123 against a national benchmark of 1,000. Qualifications come from the 2021 Census; school enrolments, ICSEA and results come from ACARA's current release.

Detail

Academic qualifications in Castle Hill far exceed broader benchmarks, as 47.0% of residents aged 15+ hold a university qualification, compared to 30.4% nationally and 32.2% across NSW. This notable educational edge positions the locality well for knowledge-based sectors. Bachelor degrees represent the largest segment at 29.3%, followed by postgraduate qualifications (14.6%) and graduate diplomas (3.1%). Vocational studies account for 24.1% of qualifications for those aged 15+ – consisting of advanced diplomas (11.2%) and certificates (12.9%). Participation in education is remarkably high, with 31.6% of the population enrolled in formal learning.

This incorporates 10.3% attending primary school, 9.6% in high school, and 6.5% enrolled in higher education.

Frequently Asked Questions - Education

What percentage of people in the suburb of Castle Hill have university qualifications?
47.0% of people aged 15 and over in the suburb of Castle Hill have university qualifications, compared to 38.0% in the broader region.
What percentage of people in the suburb of Castle Hill have no formal qualifications?
28.9% of people aged 15 and over in the suburb of Castle Hill have no formal qualifications, compared to 34.2% regionally.
How does the suburb of Castle Hill's education level compare to national averages?
The suburb of castle hill ranks in the 93th percentile nationally for education based on AreaSearch's analysis of qualification and performance metrics.
What types of qualifications are most common in the suburb of Castle Hill?
The most common qualifications in the suburb of Castle Hill are: Bachelor Degree (29.3%), Postgraduate (14.6%), Certificate (12.9%).
What proportion of the suburb of Castle Hill's population is currently attending educational institutions?
31.6% of the population in the suburb of Castle Hill is currently engaged in formal education, with 10.3% in primary school, 9.6% in secondary school, 6.5% at university.
What is the ICSEA score for schools in the suburb of Castle Hill?
The average ICSEA (Index of Community Socio-Educational Advantage) score for schools in the suburb of Castle Hill is 1123, indicating above-average socio-educational advantage compared to the national average of 1000.
How many schools are located within the suburb of Castle Hill?
There are 14 schools within the suburb of Castle Hill, with a combined enrollment of approximately 9,712 students.
What types of schools are available in the suburb of Castle Hill?
The suburb of castle hill includes 7 primary schools, 5 secondary schools, 1 combined school.

Schools Detail

AmenitiesServices & Amenities in Castle Hill (NSW)

PROFILE FAQ
Explore the surrounds Search this catchment for any place type — schools, cafés, supermarkets, transport — and drop your own custom points on the map.
Open

Getting AroundTransport & Commuting in Castle Hill (NSW)

Table Chart PROFILE FAQ

Public transport in Castle Hill (NSW) reaches 298 stops on 236 routes, timetabled for about 14,600 services a week. The typical home sits about 170 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.5 vehicles. Stop and service counts are built from operators' published GTFS timetables and refresh with each timetable release; vehicle ownership is from the 2021 Census.

Detail

Analysis of transit options indicates 298 active public transport stops operate in Castle Hill, including a combination of light rail and buses. These transit points are serviced by 236 separate routes, which combine to offer 14,570 weekly passenger trips. Transport accessibility is ranked as outstanding, with residents generally living 170 meters away from the closest transport option. Being a major residential area, most citizens travel outside the boundary for work; cars remain the primary transit mode at 82%, while 8% of commuters use the train. Car ownership averages 1.5 per household, which is higher than the regional average.

A high 54.3% of workers perform their jobs from home, according to the 2021 Census, which could reflect COVID-19 conditions. Service frequency averages 2,081 trips per day across all routes, translating to roughly 48 weekly trips per transport stop. The accompanying map displays the 100 nearest transit points to the geographical center of the location.

Frequently Asked Questions - Transport

How many public transport stops are in Castle Hill (NSW)?
There are 298 public transport stops within the suburb of Castle Hill.
How frequent are the transport services in Castle Hill (NSW)?
the suburb of Castle Hill has 14,570 weekly trips across 236 routes, averaging 2,081 trips per day.
How far are residents from public transport in Castle Hill (NSW)?
On average, residential properties are 170 meters from the nearest transport stop.

Transport Stops Detail

HealthcareHealth Services in Castle Hill (NSW)

Table Chart PROFILE FAQ

75.2% of residents in Castle Hill (NSW) report no long-term health condition, a healthier profile than 90% of areas nationally. 4.9% need daily assistance with core activities, and 61.6% hold private health cover. The standardised death rate runs at 4.2 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.

Detail

Health outcomes data demonstrates outstanding results across Castle Hill, based on AreaSearch's assessment of mortality rates and chronic condition prevalence with very low prevalence of common health conditions across all age groups , and the rate of private health cover found to be exceptionally high at approximately 62% of the total population (26,745 people). The national average is 55.7%. The most common medical conditions in the area were found to be arthritis and asthma, impacting 6.4 and 5.8% of residents, respectively, while 75.2% declared themselves as completely clear of medical ailments compared to 74.6% across Greater Sydney.

The area has 20.9% of residents aged 65 and over (9,068 people), which is higher than the 15.5% in Greater Sydney. Health outcomes among seniors are particularly strong, with national rankings broadly in line with the general population.

Frequently Asked Questions - Health

How many people in the suburb of Castle Hill have private health insurance?
Around 61.6% of people in the suburb of Castle Hill are covered by private health insurance, which compares to 59.9% in the broader region of Greater Sydney.
What percentage of the population requires ongoing medical assistance in the suburb of Castle Hill?
In the suburb of Castle Hill, 4.9% of the population is identified as requiring ongoing medical assistance. This figure is slightly different from the regional average, where 5.2% of people in Greater Sydney require similar assistance.
How prevalent is asthma in the suburb of Castle Hill?
5.8% of people in the suburb of Castle Hill are diagnosed with asthma. In comparison, 6.4% of the population across Greater Sydney is affected by asthma.
What percentage of people have diabetes in the suburb of Castle Hill?
Diabetes affects 4.3% of the the suburb of Castle Hill population, while in the surrounding region, 4.3% of people are diagnosed with diabetes.
What is the percentage of people with heart disease in the suburb of Castle Hill?
3.7% of people in the suburb of Castle Hill have heart disease. Across the region of Greater Sydney, 3.2% of the population is affected by heart disease.
How does the suburb of Castle Hill compare to the region in terms of overall private health coverage?
In the suburb of Castle Hill, 61.6% of the population are estimated to have private health insurance. Comparatively, Greater Sydney sees an estimated private health coverage rate of 59.9%.

Ancestry & LanguageCultural Diversity in Castle Hill (NSW)

Table Chart PROFILE FAQ

45.4% of Castle Hill (NSW) residents were born overseas and 43.8% speak a language other than English at home, more culturally diverse than 86% of areas nationally. The largest reported ancestries are English (17.2%) and Chinese (16.2%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.

Detail

Castle Hill scores quite highly on cultural diversity, with 43.8% of its population speaking a language other than English at home and 45.4% born overseas. The main religion in Castle Hill was found to be Christianity, which makes up 52.6% of people in Castle Hill. However, the most apparent overrepresentation was in Hinduism, which comprises 6.6% of the population, compared to 5.2% across Greater Sydney. In terms of ancestry (country of birth of parents), the top three represented groups in Castle Hill are English, comprising 17.2% of the population, Chinese, comprising 16.2% of the population, which is substantially higher than the regional average of 8.4%, and Australian, comprising 15.6% of the population.

Additionally, there are notable divergences in the representation of certain other ethnic groups: Korean is notably overrepresented at 2.8% of Castle Hill (vs 1.1% regionally), Sri Lankan at 0.9% (vs 0.3%) and Indian at 5.9% (vs 3.6%).

Frequently Asked Questions - Diversity

What is the level of cultural diversity in the suburb of Castle Hill?
Castle Hill scores quite highly on cultural diversity, with 43.8% of its population speaking a language other than English at home and 45.4% born overseas.
What is the most common religion in the suburb of Castle Hill?
The main religion in Castle Hill was found to be Christianity, which makes up 52.6% of people in Castle Hill. However, the most apparent overrepresentation was in Hinduism, which comprises 6.6% of the population, compared to 5.2% across Greater Sydney.
What are the top countries of origin in the suburb of Castle Hill?
In terms of ancestry (country of birth of parents), the top three represented groups in Castle Hill are English, comprising 17.2% of the population, Chinese, comprising 16.2% of the population, which is substantially higher than the regional average of 8.4%, and Australian, comprising 15.6% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: Korean is notably overrepresented at 2.8% of Castle Hill (vs 1.1% regionally), Sri Lankan at 0.9% (vs 0.3%) and Indian at 5.9% (vs 3.6%).
How does the percentage of people born overseas compare to the regional average?
45.4% of the the suburb of Castle Hill population was born overseas, compared to 40.5% regionally.
What percentage of the the suburb of Castle Hill population speaks a language other than English at home?
43.8% of the population in the suburb of Castle Hill speaks a language other than English at home, compared to 39.5% in the wider region.
How many people in the suburb of Castle Hill identify as Australian Aboriginal?
0.3% of the the suburb of Castle Hill population identifies as Australian Aboriginal, compared to 1.3% in the region.
What is the citizenship status of the population in the suburb of Castle Hill?
83.3% of the the suburb of Castle Hill population holds citizenship, compared to 80.8% in the wider region.

Age StructureAge Profile of Castle Hill (NSW)

Table Chart PROFILE FAQ

The median resident of Castle Hill (NSW) is 42. 22.8% of residents are aged 15 to 34. Age cohorts are not raw Census counts: the Census split is re-based to the latest ABS population estimates and state projections.

Detail

The 42-year median age in Castle Hill is significantly above Greater Sydney's average of 37 similarly considerably older than Australia's 38 years. The 45 - 54 age group shows strong representation at 14.6% compared to Greater Sydney, whereas the 25 - 34 cohort is less prevalent at 8.2%. Post-2021 Census data shows the 15 to 24 age group has grown from 12.5% to 14.6% of the population, while the 75 to 84 cohort increased from 6.2% to 7.4%. Conversely, the 5 to 14 cohort has declined from 14.5% to 13.1%.

Population forecasts for 2041 indicate substantial demographic changes for Castle Hill. Leading the demographic shift, the 45 to 54 group will grow by 45% (2,836 people), reaching 9,171 from 6,334.

Frequently Asked Questions - Age

What is the median age in the suburb of Castle Hill?
According to the latest data, the median age in the suburb of Castle Hill is 42 years.
How does the suburb of Castle Hill's median age compare to broader areas?
At 42 years, Castle Hill is 5 years older than the Greater Sydney average (37 years) and 4 years older than the national average (38 years).
What age groups are over-represented in the suburb of Castle Hill?
The most over-represented age group in the suburb of Castle Hill compared to the Greater Sydney region is the 45 - 54 group, making up 14.6% of the population.
What age groups are under-represented in the suburb of Castle Hill?
The most under-represented age group in the suburb of Castle Hill compared to the Greater Sydney region is the 25 - 34 group, making up 8.2% of the population.
Are there age groups with notable population variances?
Yes, certain age groups in the suburb of Castle Hill show significant variance compared to the Greater Sydney region. The most over-represented age groups are 85+ year-olds (3.4% vs 2.1%) and 75-84 year-olds (7.4% vs 5.3%). The most under-represented age groups are 25-34 year-olds (8.2% vs 16.1%) and 0-4 year-olds (3.6% vs 5.6%).
What is the percentage of children (0-14 years) in the suburb of Castle Hill?
The percentage of children aged 0-14 years in the suburb of Castle Hill is 16.7%.
What is the percentage of older people (65+ years) in the suburb of Castle Hill?
The percentage of people aged 65 and over in the suburb of Castle Hill is 20.9%.

Data & MethodBoundaries, Sources & Method for Castle Hill (NSW)

Data currency Refreshed

9 of 14 data sections on this page were updated within the last 12 months — the newest current to Aug 2026.

Everything is aggregated to the Suburb (SAL) boundary shown above, on a 2021 Census baseline. Only 3 sections — housing, households and cultural diversity — still wait on the 2026 Census.

The ledger — source, cycle and currency by section

Section Source & update cycle Currency
Updated within the last 12 months 9 sections
Population ABS, GNAF, Geoscience Australia Annual (ABS ERP) May 2026 3 months ago headline measures · 2021 Census baseline
Re-based to the ABS Estimated Resident Population (June 2025 release) and updated with new dwellings from GNAF address data. Current to May 2026, with the 2021 Census supplying the small-area baseline.
Age profile ABS, Geoscience Australia, State governments Annual May 2026 3 months ago headline measures · 2021 Census baseline
Age cohorts are re-based to the latest ABS population estimates and state projections, current to May 2026. Each cohort is held as a Census baseline and a current estimate.
Development & approvals ABS, GNAF Monthly (ABS approvals) Jun 2026 2 months ago headline measures · May 2026 baseline
Property sales & rents Valuer General, Rental Board, ABS Weekly sales, quarterly rents Aug 2026 this month all 21 measures
Sales from the state Valuer General register, refreshed weekly, and rents from quarterly rental bond lodgements. Both are read live each time this page loads, current to Aug 2026.
Infrastructure projects Infrastructure Australia, State agencies, Local governments Daily May 2026 3 months ago all 27 projects tracked here
Project pipeline maintained continuously from Infrastructure Australia, state agencies, local government and public announcements. Records are added and revised daily; this area was last updated May 2026.
Employment ABS, DEWR, JSA Quarterly (ABS SALM) Mar 2026 5 months ago headline measures · 2021 Census baseline
Unemployment and labour force from ABS Small Area Labour Markets, current to Mar 2026. The growth outlook applies Department of Employment (now Jobs and Skills Australia) forecasts for all 19 industry divisions to the local industry mix, so it measures sector composition rather than local expansion and makes no allowance for population growth. Job demand comes from the same agency via its Internet Vacancy Index; industry and occupation structure from the 2021 Census.
Education ABS, ACARA Annual (ACARA) Aug 2026 this month headline measures · 2021 Census baseline
Transport ABS, State Transport Departments Each timetable release Jul 2026 last month headline measures · 2021 Census baseline
Services & amenities Provider directories, ACECQA Continuous Jul 2026 last month all 14 measures
Annual and financial-year sources 2 sections
Income ABS, ATO Annual (ATO) FY 2023 3 years ago headline measures · 2021 Census baseline
ATO taxable income statistics for FY 2023, indexed forward using the Wage Price Index. Census household income provides the distribution detail.
Health ABS, ATO Annual 2024 2 years ago headline measures · 2021 Census baseline
Census-measured — next update: 2026 Census 3 sections No more current small-area source exists for these, so they are labelled as Census-measured rather than implied to be current.
Housing ABS 5-yearly (Census) 2021 Census next update 2026 all 30 measures
Households ABS 5-yearly (Census) 2021 Census next update 2026 all 18 measures
Cultural diversity ABS, Geoscience Australia 5-yearly (Census) 2021 Census next update 2026 all 44 measures

"Currency" is the most recent release feeding that section. Where the Census supplies the structural baseline underneath a current headline figure, the row says so.

How the numbers are built

Population

The Census provides the small-area baseline, aggregated from mesh blocks to this boundary. It is then re-based to the ABS Estimated Resident Population (June 2025 release), and new dwellings built since Census night are counted from address data — 1,931 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (40,874 at the 2021 Census → 43,390 now). Annual growth rates are compound (CAGR), not simple averages.

Age profile

Cohort shares are not raw Census counts. Every cohort is held as a pair — the Census baseline and a current estimate — and the split is re-based using ERP and state population projections, current to May 2026. Median age is the Census median plus modelled change since. Charts that show both are labelled "2021 Census vs Current Estimate".

Property sales

Sourced from the state valuation authority's sales register — current, not Census, and refreshed weekly. Medians are calculated from settled transactions in the period shown; periods with very low transaction counts are flagged or suppressed, because a handful of sales can move a median substantially.

Rents

Derived from state rental bond lodgement data, by dwelling type and bedroom count. Bonds are lodged at the start of a new tenancy, so this reflects new lettings, not the whole rented stock.

Development & infrastructure

Building approvals come from current ABS releases; development applications are collected from council and state planning portals; the infrastructure pipeline is compiled from Infrastructure Australia and local government sources. Applications are matched to this boundary by address or coordinates, so very recent lodgements may not yet appear.

Employment & income

Industry and occupation structure comes from the Census, but the headline labour-market indicators do not. Unemployment and labour force are derived from ABS Small Area Labour Markets (quarterly). The employment outlook applies Department of Employment forecasts for all 19 industry divisions to this area's own industry mix (the agency is now Jobs and Skills Australia), as does the Internet Vacancy Index used for job demand. Because it is weighted on industry composition alone, that outlook carries no allowance for local population growth — in fast-growing areas the real rise in local jobs will typically be higher. Income combines Census household income with ATO taxable-income statistics for FY 2023, indexed forward using the Wage Price Index.

Education, transport & amenities

School enrolments, ICSEA and performance come from ACARA's current release, not the Census. Public transport stops and service frequency are derived from GTFS timetable feeds published by state transport departments. Services and amenities are proximity and count scores built from provider directories, refreshed on their own cycle. The Census contributes only the travel-to-work and qualification measures.

Rankings and benchmarks. Where we rank this area, the comparison set is every area of the same boundary type — suburbs against suburbs, SA2s against SA2s. Benchmarks compare this area against its greater capital city region and the national figure for the same measure and period.

Limits worth knowing. Small areas carry larger error margins, and the ABS introduces small random adjustments to Census counts to protect confidentiality — so totals may not sum exactly. Estimates re-based from regional data describe the area's expected trajectory, not a direct count of it. Figures are indicative for research and are not financial, planning or valuation advice.

Cross-check us. The Census baseline for this boundary is at ABS 2021 Census QuickStats (SAL10846). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.

Common questions about this page

How do Castle Hill (NSW) suburb boundaries differ from Statistical Areas?
This page uses Suburbs and Localities (SAL) boundaries (suburb-style geography). SAL represents commonly-known suburb names used in addresses, while Statistical Areas (SA2) are designed for census/statistical reporting. Even when sharing the same name, SAL and SA2 boundaries often cover different geographic areas with different populations.
Where does the data on this Castle Hill (NSW) page come from?
AreaSearch compiles this page from official and industry sources — including ABS, Geoscience Australia, Valuer General, Provider directories, DEWR, JSA, State Transport Departments and ACARA — then aggregates them to the boundary shown and calculates the rankings, growth rates and benchmarks itself. Property sales come from the state valuation authority, rents from state rental bond lodgements, development applications from council and state planning portals, school data from ACARA, and public transport from state transport departments.
Is the Castle Hill (NSW) data on this page just from the 2021 Census?
No. Most of this page is maintained well beyond the Census. Sourced entirely from current releases: development & approvals (Jun 2026), property sales & rents (Aug 2026), infrastructure projects (May 2026) and services & amenities (Jul 2026). Built on a Census baseline but carrying newer measures on top: population (to May 2026), age profile (to May 2026), employment (to Mar 2026), income (to FY 2023), education (to Aug 2026), transport (to Jul 2026) and health (to 2024). Population and age cohorts in particular are re-based to the latest ABS Estimated Resident Population rather than left at 2021 counts. Only housing, households and cultural diversity remain wholly Census-based, because no more current small-area dataset exists for those measures.

Nearby Areas