Castle Hill - South

SA2

Greater Sydney / Baulkham Hills

 
 
 
 
 
 
 
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Statistical Area (SA2) Boundary Analysis

This analysis uses ABS Statistical Areas Level 2 (SA2) boundaries, which can materially differ from Suburbs and Localities (SAL) even when sharing similar names.

SA2 boundaries are defined by the Australian Bureau of Statistics and are designed to represent communities for statistical reporting (e.g., census and ERP).

Suburbs and Localities (SAL) represent commonly-used suburb/locality names (postal-style areas) and may use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.

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Sales ActivityProperty Sales Trends in Castle Hill - South

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The median house price in Castle Hill - South is $2.46m, with units at $990k. House values have moved 5.1% a year compounded over five years.

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DemographicsPopulation Growth in Castle Hill - South

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Castle Hill - South has an estimated 11,020 residents, up from 10,419 at the 2021 Census — a change of 601 people, or 5.8%. Growth has averaged 0.9% a year over five years. Overseas migration accounts for 83.0% of that increase. That puts 2,668 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

According to investigations by AreaSearch, Castle Hill - South has a population of approximately 11,020 as of May 2026. This indicates a growth of 601 residents (5.8%) from the 2021 Census, which counted 10,419 individuals. This adjustment is calculated using the ABS estimated resident population of 10,965 from June 2025 alongside 37 validated new addresses identified after the Census. Such population levels translate to a density of 2,668 persons per square kilometer, placing the locality in the top quartile of all Australian areas analyzed by AreaSearch. The 5.8% expansion rate of Castle Hill - South since the 2021 census outpaced the broader SA3 region (5.3%), making it a leader in local population expansion.

This growth was mostly fueled by net overseas migration, which comprised roughly 83.0% of the total population rise in recent times. AreaSearch utilizes population projections from the ABS and Geoscience Australia for individual SA2 regions, published in 2024 with a 2022 baseline. In instances where SA2 areas lack this coverage, projections from the NSW State Government released in 2022 with a 2021 baseline are applied. Expected growth rates by age group from these combined sources are also extended to all locations for the years 2032 to 2041. Future demographic projections point to population growth exceeding the national median, with the locality anticipated to add 1,503 residents by 2041 based on the most recent annual ERP statistics, representing a cumulative increase of 13.1% over the 16-year timeframe.

Frequently Asked Questions - Population

What is the latest population estimate for the Castle Hill - South SA2?
Total population for the Castle Hill - South SA2 was estimated to be approximately 11,020 as at May 26. This is based upon an estimated resident population of 10,965 from the ABS up to June 2025.
How has the population in the Castle Hill - South SA2 changed since 2021?
The castle hill - south sa2 has added approximately 601 people and shown a 5.77% increase from the 10,419 people recorded at the 2021 Census period.
What is the population density in the Castle Hill - South SA2?
The population density in the Castle Hill - South SA2 is estimated at 2,668 persons per square kilometer based on the latest population estimate.
How much has the population grown over the past 10 years in the Castle Hill - South SA2?
Over the past 10 years, the population in the Castle Hill - South SA2 has shown a compound annual growth rate of 1.1% per annum.
What are the main drivers of population growth in the Castle Hill - South SA2?
Population growth in the Castle Hill - South SA2 is driven by: Overseas migration (83.0%), Natural increase (17.0%), Interstate migration (0.0%). The primary driver is Overseas migration, contributing 83.0% of overall population gains.

Residential SupplyHousing Development & Building Approvals in Castle Hill - South

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99 new dwellings have been approved in Castle Hill - South over the past five years, an average of 19 a year. That is 1.9 approvals per 1,000 residents. Approvals are currently running at an annualised 21, broadly in line with that longer-run average. Figures come from ABS building approvals aggregated to this SA2 boundary and are updated monthly as the ABS releases them.

Detail

Castle Hill - South averages approximately 19 residential building approvals annually, with a total of 99 dwellings approved over the last 5 financial years. In the current FY-26 period, 20 approvals have been documented. Since an average of 4.9 additional residents per built dwelling have relocated to the area over the previous 5 financial years (from FY-21 to FY-25), demand is outstripping new housing additions, a trend that generally drives up property prices and heightens buyer rivalry. Concurrently, newly built houses average a construction value of $508,000, showing that developers are focusing on the higher-end market with premium housing options.

Furthermore, commercial building approvals have reached $7.4 million this financial year, showing a subdued focus on business infrastructure construction. When compared to Greater Sydney, Castle Hill - South exhibits low building volumes, running 80.0% below the regional average per capita. This low rate of new construction typically bolsters demand and prices for established housing. Activity is also lower than the national benchmark, reflecting a mature market and highlighting potential planning or space constraints. Recent construction activity is composed of 71.0% separate houses and 29.0% medium and high-density dwellings, preserving a suburban character that emphasizes larger family residences for buyers wanting extra space. With approximately 965 residents for every single approved dwelling, Castle Hill - South represents a highly established market. Projecting forward, Castle Hill - South is anticipated to add 1,448 residents by 2041, according to the latest quarterly figures from AreaSearch. If current building rates persist, the addition of new housing may fall short of population gains, which could intensify competition among buyers and foster stronger price growth.

Frequently Asked Questions - Development

How many dwelling approvals have occurred in the Castle Hill - South SA2 recently?
Dwelling approval activity in the the Castle Hill - South SA2 area has seen 24 residential approvals over the past two financial years, based on AreaSearch's SA2 aggregation method. The Castle Hill - South SA2's current population of 11,020 has been supported by 19 approvals on average over recent years.
How does the Castle Hill - South SA2's development activity compare to the broader region?
The Castle Hill - South SA2 has seen 0.19 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 965 people in the Castle Hill - South SA2, compared to one for every 190 in the broader region.
Is the Castle Hill - South SA2 keeping up with housing demand?
With the population expected to increase by 1,448 people by 2041, around 483 new dwellings will be necessary. Recent approval levels may be insufficient to meet these forecasts, considering the census average of 3.0 persons per dwelling. This indicates potential housing shortages if current approval trends continue.
What has been the trend in development approvals over the past five years in the Castle Hill - South SA2?
Looking at development activity over the past five years, the Castle Hill - South SA2's approval levels have been significantly below the yearly average of 19, showing a notable downturn in recent development.
How many dwellings will be needed to accommodate future population growth in the Castle Hill - South SA2?
The population in the Castle Hill - South SA2 is expected to grow by 1,448 people by 2041, necessitating approximately 483 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 Castle Hill - South SA2?
Over the past five years, the population in the Castle Hill - South SA2 has grown by approximately 2,884 people, while 99 residential approvals were recorded. This equates to a ratio of 29.1 people added for each new dwelling approval. This high ratio suggests strong population growth relative to housing supply, potentially indicating unmet housing demand.
Are there opportunities for residential developers in the Castle Hill - South SA2?
With dwelling approval activity running at an average of 19 approvals per year and a population of 11,020, there appears to be a supply shortfall relative to projected demand, presenting strong opportunities for residential developers. With the population expected to increase by 1,448 people by 2041, around 483 new dwellings will be necessary. Current approval trends may be insufficient to meet forecast demand, indicating strong development opportunities.
Approvals Pipeline Development applications near Castle Hill - South

Development applications around Castle Hill - South

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

Project PipelineInfrastructure & Major Projects in Castle Hill - South

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AreaSearch tracks 2 current infrastructure and development projects inside Castle Hill - South, worth an estimated $8.72 billion. A further 106 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $50.2 billion. 36 are already under construction and 46 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

Changes to infrastructure, major construction projects, and planning policies are key drivers of local performance. AreaSearch has identified 20 projects with the potential to influence the local area. Key developments include the Hills Shire Council Infrastructure Delivery Program 2025-2026, Sydney Metro Northwest, Deicorp's Hills Showground Village, and CG Group's Chapman Gardens, with the most significant projects listed below.

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

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Frequently Asked Questions - Infrastructure

What are some of the major infrastructure and planning changes likely to influence the Castle Hill - South SA2?
Key infrastructure and planning changes likely to influence the Castle Hill - South SA2 include: Hills Shire Council Infrastructure Delivery Program 2025-2026 (Construction); Sydney Metro Northwest (Completed); Hills Showground Village by Deicorp (Construction); Chapman Gardens by CG Group (Construction); and Skyview Apartments Castle Hill (Construction). These projects represent significant developments that will shape the area's future infrastructure landscape.
What types of infrastructure projects are impacting the Castle Hill - South SA2?
Infrastructure development impacting the Castle Hill - South SA2 spans multiple sectors including Communities, Residential Development, and Transport & Logistics, among others.
What is the scale of infrastructure investment impacting the Castle Hill - South SA2?
Infrastructure investment analysis indicates substantial capital deployment exceeding $12.0 billion in projects that will impact the extended area, with a notable concentration of investment within the immediate the Castle Hill - South SA2 vicinity.
How does the Castle Hill - South SA2's infrastructure development compare to other areas?
Infrastructure development activity impacting the Castle Hill - South SA2 currently ranks below national averages at the 35thth percentile.
Mixed-use development with in-fill affordable housing - Cecil Avenue and Roger Avenue, Castle Hill
Category: Communities, Precincts & Urban Renewal
Stage: Under Assessment | Est. Comp: 2030
Source / Links: Link 1   Link 2  

State Significant Development for demolition of existing structures and construction of a staged mixed-use precinct at Cecil Avenue and Roger Avenue, Castle Hill. The amended proposal includes about 610 to 615 apartments, including affordable housing, commercial floor space, basement parking and four tower buildings ranging from about 23 to 35 storeys, with public domain and pedestrian connectivity improvements near Castle Hill Metro.

Communities, Precincts & Urban Renewal

Sydney Metro Northwest
Category: Transport & Logistics
Stage: Completed | Est. Comp: 2019
Source / Links: Link 1   Link 2  

Sydney Metro Northwest is Australia's first fully automated metro rail system. Spanning 36 km from Tallawong to Chatswood, the line features 13 stations, including 8 new stations and 5 converted from the Epping to Chatswood rail link. It features driverless trains, platform screen doors, and turn-up-and-go services every 4 minutes during peak periods. As of 2026, it forms the northern section of the M1 North West & Bankstown Line, which has successfully completed end-to-end testing from Tallawong to Bankstown.

Transport & Logistics

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

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

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

Skyview Apartments Castle Hill
Category: Communities
Stage: Construction | Est. Comp: 2026
Source / Links: Link 1   Link 2  

ALAND is completing construction and rectification works on the former Toplace Skyview development at Castle Hill. The five-tower complex will deliver 964 apartments in total, including 532 build-to-rent units across Buildings C, D and E, which ALAND is completing after receivers KordaMentha appointed them in September 2024. The development also includes retail and mixed-use components opposite Castle Towers Shopping Centre. ALAND holds an iCIRT Gold rating and is working closely with Building Commission NSW throughout delivery.

Communities

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

Hills Showground Village by Deicorp
Category: Communities
Stage: Construction | Est. Comp: 2026
Source / Links: Link 1   Link 2  

$445 million mixed-use transit-oriented development comprising 430 apartments across four towers (up to 20 storeys) above a retail precinct, designed by Turner Studio. Located 50 metres from Hills Showground Metro Station. The Showground Village retail precinct officially opened on 31 August 2025, spanning 9,500sqm across four levels with 26 specialty retailers, a Woolworths and BWS anchor, and a 1,400sqm public plaza. Residential construction is ongoing with Stage 1 nearing completion and Stage 3 now launched to market.The broader Hills Showground Station Precinct is a Landcom and Sydney Metro urban renewal initiative; Deicorp was selected to deliver both the Village and the adjacent $1B Showground Pavilions (Precinct East) project, together providing over 1,300 dwellings and more than $2 billion in economic impact.

Communities

Jobs & IndustryEmployment Trends in Castle Hill - South

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5,871 residents of Castle Hill - South are employed, from a labour force of 6,102. Unemployment sits at 3.8%, with participation at 67.2%. Weighted for its industry mix, the area's sectors are forecast to grow about 7.0% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. The working-day population is estimated at 9,084, about 82% of the resident population, so more people leave the area for work than travel in. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.

Detail

The workforce in Castle Hill - South is highly qualified, with professional services representing a major share of employment, and an unemployment rate standing at just 3.8%. In March 2026, there were 5,871 employed local residents, and the unemployment rate sat 0.3% below the Greater Sydney average of 4.1%. Workforce participation is mostly aligned with the Greater Sydney level of 69.1%. Census responses indicate that a significant 54.2% of the working population operated from home, though this figure may reflect the influence of pandemic lockdowns. The most common employment fields for residents are professional & technical services, health care & social assistance, and retail trade.

Conversely, transport, postal & warehousing represents a small share of the local workforce at only 2.7%, compared to 5.3% across Greater Sydney. This predominantly residential locality appears to provide a limited number of local jobs, as shown by comparing the count of the Census working population against the resident population. Based on AreaSearch's evaluation of SALM and ABS statistics, the local labor force shrank by 0.2% and total employment fell by 0.7% over the 12 months ending March 2026, leading to a rise in unemployment of 0.5 percentage points. By comparison, Greater Sydney saw employment rise by 1.9% and its labor force grow by 1.9%, accompanied by a minor decrease. National employment projections from May-25 by Jobs and Skills Australia provide further context regarding future demand in Castle Hill - South. These five and ten-year forecasts have been correlated with the local workforce structure to project future trends. Although total national employment is projected to grow by 6.6% over five years and 13.7% over ten years, the expected growth rates vary widely by industry. Applying these sectoral projections to the employment composition of Castle Hill - South indicates local employment could rise by 7.0% over five years and 14.1% over ten years, representing a basic weighted extrapolation for comparison that does not incorporate local population forecasts.

Frequently Asked Questions - Employment

What is the employment situation in the Castle Hill - South SA2?
As of March 2026, the Castle Hill - South SA2 has approximately 5,871 employed residents with an unemployment rate of 3.8%. This healthy unemployment rate suggests a well-functioning labour market. Employment indicators are below the national average, suggesting room for improvement, though the very low unemployment rate of 3.8% indicates the ranking primarily reflects recent job losses rather than underlying labor market weakness.
How does the Castle Hill - South SA2's unemployment rate compare to the broader region?
As of March 2026, the unemployment rate in the Castle Hill - South SA2 stands at 3.8%, which is broadly in line with Greater Sydney's rate of 4.1%. For comparison, the national unemployment rate is 4.2%.
What are the major employment sectors in the Castle Hill - South SA2?
The employment landscape in the Castle Hill - South SA2 is dominated by several key sectors. The largest employers are professional & technical (13.8% of employment), health care & social assistance (13.0%), and retail trade (10.5%). Other significant employers include education & training and finance & insurance.
How has employment changed recently in the Castle Hill - South SA2?
Over the past year to March 2026, the Castle Hill - South SA2 has experienced a decline in employment, with total jobs decreasing while the labour force decreased. As a result, the unemployment rate has rise. By comparison, Greater Sydney saw employment increased and its unemployment rate dropped.
What is the workforce participation rate in the Castle Hill - South SA2?
The workforce participation rate in the Castle Hill - South SA2 is 67.2%, 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 Castle Hill - South SA2's employment market?
The castle hill - south sa2 shows notable specialization in professional & technical, which employs 13.8% 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 Castle Hill - South SA2?
Based on Jobs and Skills Australia projections applied to the Castle Hill - South SA2's industry mix, employment is expected to grow by 7.0% over the next five years and 14.1% 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 Castle Hill - South SA2 compare nationally?
The castle hill - south sa2's employment market shows below-average performance in national comparisons. While employment opportunities exist, the area faces more challenges than many other regions. However, the low unemployment rate of 3.8% suggests the ranking is driven by recent job losses rather than structural weakness. 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 Castle Hill - South SA2?
Skilled workers will find excellent opportunities in the Castle Hill - South SA2, with knowledge-intensive sectors comprising 48.8% of local employment. Key sectors for skilled workers include professional & technical (13.8%), health care & social assistance (13.0%), and education & training (10.5%). With projected employment growth of 7.0% over five years, demand for skilled workers is expected to remain strong.

EarningsHousehold Income in Castle Hill - South

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Median household income in Castle Hill - South is $2,482 a week (about $129,000 a year), with median personal income at $978 a week. ATO records put median taxable income at $61,883 a year against an average of $87,123. The average runs 41% 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

Income levels in the Castle Hill - South SA2 are positioned at the upper end of the national spectrum, according to aggregated ATO statistics from AreaSearch for the 2023 financial year. Taxpayers in Castle Hill - South SA2 have a median income of $61,883 and an average income of $87,123, compared to $60,817 and $83,003 in Greater Sydney, respectively. Factoring in Wage Price Index growth of 10.32% since the 2023 financial year, current figures would be approximately $68,269 for the median and $96,114 for the average as of March 2026.

According to the Census, household, family, and individual incomes in Castle Hill - South are high, falling in the 76th to 90th national percentiles. The largest income bracket contains 30.2% of residents earning between $1,500 and $2,999 weekly (3,328 people), closely matching the Greater Sydney rate of 30.9%. Economic capacity is highlighted by the 41.3% of households earning more than $3,000 per week, which helps sustain high consumer demand. Residential costs consume 16.7% of local incomes, but strong earnings keep disposable income in the 88th percentile, and the SEIFA index ranks the area in the 9th decile for income.

Frequently Asked Questions - Income

What is the median taxable income in the Castle Hill - South SA2?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the Castle Hill - South SA2 is approximately $68,269. The official ATO data from FY-23 recorded a median of $61,883.
What is the average taxable income in the Castle Hill - South SA2?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the Castle Hill - South SA2 is approximately $96,114. The official ATO data from FY-23 recorded an average of $87,123.
How does the median taxable income in the Castle Hill - South SA2 compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the Castle Hill - South SA2 is approximately $68,269 compared to $67,093 in Greater Sydney. The official ATO data from FY-23 shows $61,883 and $60,817 respectively.
How does the average taxable income in the Castle Hill - South SA2 compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the Castle Hill - South SA2 is approximately $96,114 compared to $91,569 in Greater Sydney. The official ATO data from FY-23 shows $87,123 and $83,003 respectively.
What are the main income cohorts in the Castle Hill - South SA2 according to the 2021 Census?
As per the 2021 Census, the income bracket containing the largest proportion (~30.2% / 3,328 persons) of the Castle Hill - South SA2's population is the $1,500 - 2,999 cohort.
How do the main income cohorts in the Castle Hill - South SA2 compare to the region?
The largest income cohort in the Castle Hill - South SA2 is the $1,500 - 2,999 group, representing about 30.2% 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 Castle Hill - South SA2 according to the 2021 Census?
The 2021 Census data indicates that the median household income in the Castle Hill - South SA2 is $2,482/wk.
What is the median family income in the Castle Hill - South SA2 according to the 2021 Census?
According to the 2021 Census, the median family income in the Castle Hill - South SA2 is $2,712/wk.
What is the median personal income in the Castle Hill - South SA2 according to the 2021 Census?
The 2021 Census shows that the median personal income in the Castle Hill - South SA2 is $978/wk.
How does the Castle Hill - South SA2's income rank nationally?
According to AreaSearch's aggregation of the latest postcode level ATO data released for FY-23, the Castle Hill - South SA2 had a median income among taxpayers of $61,883 with the average level standing at $87,123. This is extremely high nationally and compares to levels of $60,817 and $83,003 across Greater Sydney respectively. Based on Wage Price Index growth of 10.32% since FY-23, current estimates would be approximately $68,269 (median) and $96,114 (average) as of March 2026.
What is the disposable income in the Castle Hill - South SA2?
The estimated disposable income in the Castle Hill - South SA2 is $8,956 per year according to AreaSearch analysis.
How does the Castle Hill - South SA2's disposable income compare to the region?
The castle hill - south sa2's disposable income is $8,956 compared to $7,412 for Greater Sydney, based on AreaSearch analysis.

Housing StockHousing & Dwellings in Castle Hill - South

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Castle Hill - South had 3,450 occupied dwellings at the 2021 Census, 71% detached houses and 22% apartments. 36% are owned with a mortgage, 30% rented and 34% owned outright. At that Census the median rent was $550 a week and the median mortgage repayment $3,000 a month, a total housing cost higher than 94% of areas nationally. Rent absorbs 22.2% of household income here and mortgage repayments 27.9%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.

Detail

According to the most recent Census, the housing stock in Castle Hill - South consists of 70.9% separate houses and 29.0% alternative housing types (including semi-detached properties, apartments, and other dwellings), compared to the metropolitan Sydney split of 55.9% separate houses and 44.1% alternative dwellings. Home ownership in Castle Hill - South is notably higher than the Sydney metro rate, standing at 33.9%, while the remaining properties are either under mortgage (36.0%) or occupied by renters (30.2%). The median monthly mortgage payment of $3,000 was higher than the Sydney metro average of $2,427, and the median weekly rent was recorded at $550, compared to the metro average of $470.

On a national scale, Castle Hill - South's mortgage costs are higher than the Australian average of $1,863, and weekly rents exceed the national benchmark of $375.

Frequently Asked Questions - Housing

What percentage of homes are owned vs rented in the Castle Hill - South SA2?
In the Castle Hill - South SA2, 33.9% of homes are owned outright, 36.0% are owned with a mortgage, and 30.2% are rented.
What percentage of dwellings in the Castle Hill - South SA2 are houses?
According to the latest data, 70.9% of dwellings in the Castle Hill - South SA2 are houses.
What percentage of dwellings in the Castle Hill - South SA2 are apartments or units?
In the Castle Hill - South SA2, 21.8% of dwellings are apartments or units, with an additional 7.2% being semi-detached dwellings.
What is the level of outright home ownership in the Castle Hill - South SA2?
Outright home ownership in the Castle Hill - South SA2 stands at 33.9%, compared to 28.7% in Greater Sydney.
What is the median monthly mortgage repayment in the Castle Hill - South SA2?
The median monthly mortgage repayment in the Castle Hill - South SA2 is $3,000, compared to $2,427 in Greater Sydney.
What is the median weekly rent in the Castle Hill - South SA2?
The median weekly rent in the Castle Hill - South SA2 is $550, compared to $470 in Greater Sydney.
What is the distribution of rental prices in the Castle Hill - South SA2?
In the Castle Hill - South SA2, 0.4% of rentals are $0-149/week, 3.2% are $150-349/week, 80.5% are $350-649/week, 14.6% are $650-949/week, and 1.3% are $950+/week.
What is the average monthly housing cost in the Castle Hill - South SA2?
The aggregate monthly housing cost in the Castle Hill - South SA2 is $1,799, which represents the average monthly cost across all housing types.
What percentage of income do residents spend on housing in the Castle Hill - South SA2?
In the Castle Hill - South SA2, households with mortgages typically spend 27.9% of their income on mortgage repayments, while renters spend 22.2% of their income on rent.
How crowded are homes in the Castle Hill - South SA2?
The average persons per bedroom ratio in the Castle Hill - South SA2 is 0.9, indicating the level of household density.
How does housing affordability in the Castle Hill - South SA2 compare to the region?
Housing affordability in the Castle Hill - South SA2 shows mortgage holders spending 27.9% of income on repayments (vs 27.0% regionally), while renters spend 22.2% of income on rent (vs 22.6% regionally).
What types of dwellings are most common in the Castle Hill - South SA2?
The dwelling mix in the Castle Hill - South SA2 consists of 70.9% detached houses, 7.2% semi-detached dwellings, 21.8% apartments, and 0.0% other dwelling types.
What is the weighted average housing cost based on tenure mix in the Castle Hill - South SA2?
Based on the area's tenure composition, the weighted average monthly housing cost is approximately $1,799. This accounts for outright owners paying no housing costs, mortgage holders paying $3,000/month, and renters paying $2,382/month.
How affordable is housing in the Castle Hill - South SA2 relative to local incomes?
Housing in Castle Hill - South consumes approximately 16.7% of median household income ($10,747 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 Castle Hill - South SA2?
Recent development applications in Castle Hill - South show attached dwellings contributing 8% of approvals compared to 29% of existing stock, while detached houses represent 92% of applications versus 71% of current dwellings. This suggests development patterns consistent with existing housing mix. Housing density growth is around the national average.

HouseholdsHousehold Composition in Castle Hill - South

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Castle Hill - South counted 3,450 households at the 2021 Census, an estimated 3,649 today, averaging 2.9 people each. 46% are couples with children, more than in 90% of areas nationally, against 27% couples without children. 14% of households are people living alone, and families average 1.5 children. Household and family composition is measured only by the Census, so these are 2021 figures.

Detail

Families make up the vast majority of households at 83.9%, consisting of 46.1% couples with children, 26.5% couples without children, and 10.1% single parents. The remaining 16.1% are non-family households, which include lone person households at 14.0% and group housing arrangements at 2.1%. The average household size stands at 2.9 individuals, which is larger than the Greater Sydney average of 2.7.

Frequently Asked Questions - Households

How many households are in the Castle Hill - South SA2?
As of the 2021 Census, the Castle Hill - South SA2 had 3,450 households. Based on population growth patterns, this has grown by approximately 5.8% to an estimated 3,649 households today.
What is the typical household size?
The median household size in the Castle Hill - South SA2 is 2.9 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 83.9% of all households. The remaining households consist of lone person households (14.0%), group households (2.1%), and other household types (0.0%).
How are families structured in the area?
Among the 2,894 family households, 46.1% are couples with children, 26.5% are couples without children at home, and 10.1% are single parent families. This mix shapes local demand for schools, family services, and housing types.
How does the Castle Hill - South SA2 compare to regional household patterns?
Compared to Greater Sydney, the Castle Hill - South SA2 shows distinct household patterns. Family households are notably over-represented at 83.9% (versus 72.6% regionally). Conversely, lone person households are under-represented at 14.0% 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 Castle Hill - South SA2 have an average of 1.5 children, matching 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 Castle Hill - South SA2?
Marriage patterns reveal 60.3% of the adult population are currently married, while 27.5% 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 14.0% of all households in the Castle Hill - South SA2, 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 2.1% of households, well below the Greater Sydney average of 4.2%. This low rate suggests limited student or young professional shared accommodation.
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EducationSchools & Education in Castle Hill - South

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47.8% of adults in Castle Hill - South hold a university qualification, including 29.6% with a bachelor degree and 15.0% with postgraduate qualifications, higher than 97% of areas nationally. A further 13.1% hold a vocational qualification. 3 schools serve the area, with 466 enrolment places and an average ICSEA of 1,135 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

The level of education in Castle Hill - South is high compared to broader averages, with 47.8% of residents aged 15 and over holding a university degree, compared to 30.4% nationally and 32.2% across NSW. This educational trend prepares the local population for employment in information-driven industries. Bachelor degrees are the most common qualification at 29.6%, followed by postgraduate degrees at 15.0% and graduate diplomas at 3.2%. Technical and vocational credentials represent 24.2% of qualifications for those aged 15 and over, split between advanced diplomas (11.1%) and certificate qualifications (13.1%).

A high share of the population is engaged in study, with 31.5% of residents enrolled in an educational program. This includes 10.6% attending primary schools, 8.8% in secondary institutions, and 6.4% enrolled in higher education.

Frequently Asked Questions - Education

What percentage of people in the Castle Hill - South SA2 have university qualifications?
47.8% of people aged 15 and over in the Castle Hill - South SA2 have university qualifications, compared to 38.0% in the broader region.
What percentage of people in the Castle Hill - South SA2 have no formal qualifications?
28.1% of people aged 15 and over in the Castle Hill - South SA2 have no formal qualifications, compared to 34.2% regionally.
How does the Castle Hill - South SA2's education level compare to national averages?
The castle hill - south sa2 ranks in the 97th percentile nationally for education based on AreaSearch's analysis of qualification and performance metrics.
What types of qualifications are most common in the Castle Hill - South SA2?
The most common qualifications in the Castle Hill - South SA2 are: Bachelor Degree (29.6%), Postgraduate (15.0%), Certificate (13.1%).
What proportion of the Castle Hill - South SA2's population is currently attending educational institutions?
31.5% of the population in the Castle Hill - South SA2 is currently engaged in formal education, with 10.6% in primary school, 8.8% in secondary school, 6.4% at university.
What is the ICSEA score for schools in the Castle Hill - South SA2?
The average ICSEA (Index of Community Socio-Educational Advantage) score for schools in the Castle Hill - South SA2 is 1135, indicating above-average socio-educational advantage compared to the national average of 1000.
How many schools are located within the Castle Hill - South SA2?
There are 3 schools within the Castle Hill - South SA2, with a combined enrollment of approximately 466 students.
What types of schools are available in the Castle Hill - South SA2?
The castle hill - south sa2 includes 2 primary schools, 1 secondary school.

Schools Detail

AmenitiesServices & Amenities in Castle Hill - South

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Getting AroundTransport & Commuting in Castle Hill - South

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Public transport in Castle Hill - South reaches 46 stops on 81 routes, timetabled for about 5,800 services a week. The typical home sits about 160 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.4 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

Public transport analysis identifies 46 transit stops within Castle Hill - South, consisting of bus services. These stops are served by 81 different routes, which together provide 5,806 passenger trips each week. Transport access is rated highly, with the average distance to the closest stop being 163 meters. As a residential community, the majority of working residents travel out of the area for employment, with cars being the main transport mode for 80% of commuters, followed by trains at 9% and buses at 5%. Households own an average of 1.4 vehicles, which is higher than the regional average.

A high proportion of residents, 54.2%, worked from home according to the 2021 Census, which may have been influenced by pandemic conditions. Service frequency averages 829 daily trips across all routes, which corresponds to roughly 126 weekly trips per transit stop.

Frequently Asked Questions - Transport

How many public transport stops are in Castle Hill - South?
There are 46 public transport stops within the Castle Hill - South SA2.
How frequent are the transport services in Castle Hill - South?
the Castle Hill - South SA2 has 5,806 weekly trips across 81 routes, averaging 829 trips per day.
How far are residents from public transport in Castle Hill - South?
On average, residential properties are 163 meters from the nearest transport stop.

Transport Stops Detail

HealthcareHealth Services in Castle Hill - South

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76.8% of residents in Castle Hill - South report no long-term health condition, a healthier profile than 99% of areas nationally. 4.0% need daily assistance with core activities, and 63.3% hold private health cover. The standardised death rate runs at 2.8 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.

Detail

Health metrics for Castle Hill - South reveal positive outcomes based on AreaSearch's evaluation of mortality data and the incidence of chronic illnesses, showing a low presence of common health issues across all demographics. The proportion of residents with private health insurance is high, encompassing roughly 63% of the population (6,975 residents). This compares to private insurance rates of 59.9% in Greater Sydney and a national average of 55.7%. The most frequently reported medical conditions in the locality are arthritis and asthma, which affect 5.7% and 5.7% of the population respectively, whereas 76.8% of residents reported having no chronic medical conditions, compared to 74.6% in Greater Sydney.

Residents aged 65 and over make up 19.0% of the population (2,088 individuals), which is higher than the Greater Sydney proportion of 15.5%. The health status of these older residents is strong, with national rankings aligning closely with the general public.

Frequently Asked Questions - Health

How many people in the Castle Hill - South SA2 have private health insurance?
Around 63.3% of people in the Castle Hill - South SA2 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 Castle Hill - South SA2?
In the Castle Hill - South SA2, 4.0% 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 Castle Hill - South SA2?
5.7% of people in the Castle Hill - South SA2 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 Castle Hill - South SA2?
Diabetes affects 3.8% of the the Castle Hill - South SA2 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 Castle Hill - South SA2?
3.4% of people in the Castle Hill - South SA2 have heart disease. Across the region of Greater Sydney, 3.2% of the population is affected by heart disease.
How does the Castle Hill - South SA2 compare to the region in terms of overall private health coverage?
In the Castle Hill - South SA2, 63.3% 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 - South

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46.7% of Castle Hill - South residents were born overseas and 45.4% speak a language other than English at home, more culturally diverse than 88% of areas nationally. The largest reported ancestries are English (16.5%) and Chinese (16.3%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.

Detail

Castle Hill - South shows a high level of cultural diversity, with 45.4% of residents speaking a language other than English at home and 46.7% born outside Australia. Christianity is the primary religion, representing 50.4% of the local population. The most prominent religious overrepresentation is Hinduism, which is practiced by 6.6% of residents compared to 5.2% across Greater Sydney. Looking at ancestral origins, the three largest groups in Castle Hill - South are English at 16.5%, Chinese at 16.3% (which is higher than the regional average of 8.4%), and Australian at 15.7%.

There is also a higher representation of certain other background groups compared to the wider region, with Korean ancestry accounting for 3.2% of Castle Hill - South (compared to 1.1% regionally), Sri Lankan ancestry at 0.7% (compared to 0.3%), and Indian ancestry at 5.7% (compared to 3.6%).

Frequently Asked Questions - Diversity

What is the level of cultural diversity in the Castle Hill - South SA2?
Castle Hill - South scores quite highly on cultural diversity, with 45.4% of its population speaking a language other than English at home and 46.7% born overseas.
What is the most common religion in the Castle Hill - South SA2?
The main religion in Castle Hill - South was found to be Christianity, which makes up 50.4% of people in Castle Hill - South. 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 Castle Hill - South SA2?
In terms of ancestry (country of birth of parents), the top three represented groups in Castle Hill - South are English, comprising 16.5% of the population, Chinese, comprising 16.3% of the population, which is substantially higher than the regional average of 8.4%, and Australian, comprising 15.7% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: Korean is notably overrepresented at 3.2% of Castle Hill - South (vs 1.1% regionally), Sri Lankan at 0.7% (vs 0.3%) and Indian at 5.7% (vs 3.6%).
How does the percentage of people born overseas compare to the regional average?
46.7% of the the Castle Hill - South SA2 population was born overseas, compared to 40.5% regionally.
What percentage of the the Castle Hill - South SA2 population speaks a language other than English at home?
45.4% of the population in the Castle Hill - South SA2 speaks a language other than English at home, compared to 39.5% in the wider region.
How many people in the Castle Hill - South SA2 identify as Australian Aboriginal?
0.3% of the the Castle Hill - South SA2 population identifies as Australian Aboriginal, compared to 1.3% in the region.
What is the citizenship status of the population in the Castle Hill - South SA2?
80.0% of the the Castle Hill - South SA2 population holds citizenship, compared to 80.8% in the wider region.

Age StructureAge Profile of Castle Hill - South

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The median resident of Castle Hill - South is 40. 23.6% 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 median age in Castle Hill - South is 40 years, which is slightly higher than the Greater Sydney median of 37 and the national median of 38. Compared to the Greater Sydney distribution, the 45 - 54 age group has a larger presence locally (14.5%), while 25 - 34 year-olds have a smaller representation (9.3%). Since 2021, the cohort aged 15 to 24 grew from 11.9% to 14.3% of the total, and the 75 to 84 cohort rose from 5.5% to 6.7%. In contrast, the 5 to 14 cohort decreased from 14.8% to 13.0%, and the 35 to 44 age bracket fell from 16.1% to 15.0%.

Demographic models indicate that Castle Hill - South's age distribution will change by 2041. The group aged 85 and over is expected to grow, increasing by 370 people (130%) from 284 to 655. Cumulatively, the cohorts aged 65 and over are projected to represent 59% of all population growth, showing an aging population trend. Conversely, the 0 to 4 and 35 to 44 cohorts are projected to decrease in size.

Frequently Asked Questions - Age

What is the median age in the Castle Hill - South SA2?
According to the latest data, the median age in the Castle Hill - South SA2 is 40 years.
How does the Castle Hill - South SA2's median age compare to broader areas?
At 40 years, Castle Hill - South is 3 years older than the Greater Sydney average (37 years) and 2 years older than the national average (38 years).
What age groups are over-represented in the Castle Hill - South SA2?
The most over-represented age group in the Castle Hill - South SA2 compared to the Greater Sydney region is the 45 - 54 group, making up 14.5% of the population.
What age groups are under-represented in the Castle Hill - South SA2?
The most under-represented age group in the Castle Hill - South SA2 compared to the Greater Sydney region is the 25 - 34 group, making up 9.3% of the population.
Are there age groups with notable population variances?
Yes, certain age groups in the Castle Hill - South SA2 show significant variance compared to the Greater Sydney region. The most under-represented age group is 25-34 year-olds (9.3% vs 16.1%).
What is the percentage of children (0-14 years) in the Castle Hill - South SA2?
The percentage of children aged 0-14 years in the Castle Hill - South SA2 is 17.2%.
What is the percentage of older people (65+ years) in the Castle Hill - South SA2?
The percentage of people aged 65 and over in the Castle Hill - South SA2 is 19.0%.

Data & MethodBoundaries, Sources & Method for Castle Hill - South

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 SA2 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 Apr 2026 4 months ago all 2 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 Apr 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 — 37 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (10,419 at the 2021 Census → 11,020 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 (115011556). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.

Common questions about this page

Why can the Castle Hill - South SA2 boundary differ from the suburb boundary?
This page uses ABS Statistical Area Level 2 (SA2) boundaries for statistical reporting (e.g., census and ERP). SA2 areas can differ materially from Suburbs and Localities (SAL) boundaries, even when they share similar names, because they are defined for different purposes and often use different geographic boundaries.
Where does the data on this Castle Hill - South 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 - South 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 (Apr 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