Castle Hill - West

Castle Hill - West has shown very soft population growth performance across periods assessed by AreaSearch

According to investigations by AreaSearch, the resident count for Castle Hill - West stands at approximately 5,215 in May 2026. This indicates a growth of 32 individuals (0.6%) relative to the 2021 Census, which documented a population of 5,183 people. This population adjustment is calculated using the June 2025 ABS estimated resident population of 5,209 combined with 5 validated new addresses identified after the Census. Such a population size results in a density of 3,179 persons per square kilometer, placing the locality in the top quartile of national areas analyzed by AreaSearch. The expansion was largely driven by overseas migration, which made up around 82.9% of the overall population increases in recent times.

AreaSearch incorporates projections from the ABS and Geoscience Australia published in 2024, using 2022 as the starting point. In instances where these are unavailable, SA2 projections from the NSW State Government released in 2022 using 2021 as the baseline are applied. The growth trends across age categories derived from these sources are extended to all localities for the period spanning 2032 to 2041. Looking at upcoming demographic shifts, the methodology forecasts a general population contraction in the area, with a projected reduction of 75 persons by 2041. Conversely, expansion is expected within particular age cohorts, notably the 75 to 84 bracket, which is anticipated to grow by 256 people.

The level of residential development activity in Castle Hill - West is very low in comparison to the average area assessed nationally by AreaSearch

Castle Hill - West has recorded approximately 2 home approvals annually, accumulating to 12 residential dwellings over the preceding 5 financial years. Thus far in FY-26, 1 approval has been logged. Because the population has been contracting recently, this rate of new supply has probably matched demand, giving purchasers options, with new homes showing an average estimated construction cost of $713,000, which suggests builders are targeting the higher-end luxury market. Additionally, commercial development has been quiet, with only $162,000 in approvals registered during this financial year.

Compared to the wider Greater Sydney region, Castle Hill - West exhibits a much lower volume of construction activity. This shortage of new supply typically supports demand and valuations for established housing, even though building approvals have increased recently. Construction volumes are also lower than the national average, indicating a mature market that may face structural limits to growth. Furthermore, recent building approvals have consisted entirely of detached houses, preserving the suburban character of the neighborhood which is dominated by spacious family residences. The area registers approximately 1170 people for each approved residential dwelling, pointing to an established urban market.

Faced with projections of steady or shrinking population numbers, Castle Hill - West is likely to experience reduced pressure on its housing market, which should create favorable purchasing conditions.

Castle Hill - West has emerging levels of nearby infrastructure activity, ranking in the 34thth percentile nationally

Local infrastructure projects, planning changes, and major works have a significant influence on neighborhood performance. AreaSearch has identified 10 key projects that are expected to impact the local area. The most relevant projects include the Hills Showground Station Precinct, Woodward Indoor Sports Complex, Skyview Apartment Complex, and the Castle Towers Expansion, with details provided in the list below.

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

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.

Castle Hill - West ranks among the top 25% of areas assessed nationally for overall employment performance

The local workforce in Castle Hill - West is highly educated, showing a strong concentration of professionals, an unemployment rate of only 2.5%, and stable employment levels over the preceding year. As of March 2026, the area has 3,065 working residents, and the unemployment rate is 1.6% below the Greater Sydney average of 4.1%, while workforce participation is standard at 71.1% compared to 69.1% across Greater Sydney. Census records show that a high proportion of residents, specifically 54.6%, worked from home, though this figure may reflect the influence of pandemic restrictions.

The principal industries employing local residents are professional & technical, health care & social assistance, and education & training. The area displays a strong specialization in professional & technical services, with its employment share reaching 1.3 times the regional average. Conversely, transport, postal & warehousing is under-represented, employing only 3.3% of the Castle Hill - West workforce compared to 5.3% in Greater Sydney. The highly residential nature of the neighborhood means local jobs are limited, as shown by the difference between the Census working population and resident population.

According to AreaSearch analysis of SALM and ABS statistics, the local labor force contracted by 0.2% and employment levels fell by 0.0% during the year ending March 2026, leading to a 0.1 percentage point reduction in the unemployment rate. By contrast, Greater Sydney experienced employment growth of 1.9%, labor force growth of 1.9%, and a slight drop in unemployment. Projections released in May-25 by Jobs and Skills Australia help illustrate potential employment demand changes in Castle Hill - West. These national five and ten-year forecasts have been applied to the local workforce structure to model future growth. While national employment is projected to rise by 6.6% over five years and 13.7% over ten years, the rate of change varies by sector. Projecting these industry trends onto the occupational mix of Castle Hill - West suggests local employment could grow by 7.1% over five years and 14.4% over ten years.

The economic profile demonstrates exceptional strength, placing the area among the top 10% nationally based on comprehensive AreaSearch income analysis

Based on the most recent postcode level ATO statistics for financial year 2023, personal incomes in Castle Hill - West SA2 are extremely high relative to the rest of the nation, with a median of $66,882 and an average of $94,161. These figures are higher than the Greater Sydney median of $60,817 and average of $83,003. Factoring in Wage Price Index growth of 10.32% since financial year 2023, current estimates for March 2026 would be roughly $73,784 for the median and $103,878 for the average. In the 2021 Census, household, family, and personal incomes all placed in the 83rd to 98th percentiles nationally. Income data reveals that 39.4% of residents (2,054 individuals) earn over $4000 weekly, which differs from the regional trend where the $1,500 - 2,999 bracket is largest at 30.9%. The high share of affluent residents (57.0% above $3,000/week) indicates strong financial resources across Castle Hill - West. Residents retain 86.7% of their income after meeting housing expenses, showing strong spending capacity, and the area is situated in the 10th decile of the SEIFA income index.

Castle Hill - West is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

According to the latest Census, the housing stock in Castle Hill - West consisted of 86.4% houses and 13.7% other housing types like townhouses and apartments, compared to 55.9% houses and 44.1% other housing types across the Sydney metropolitan area. Home ownership rates in Castle Hill - West were higher than the Sydney metro average, standing at 35.6%, while the remaining homes were occupied by mortgagors (49.8%) or tenants (14.6%). The median monthly mortgage payment was $3,000, which is higher than the Sydney metro average of $2,427, and the median weekly rent was $692 compared to the metropolitan average of $470. Nationally, mortgage repayments in Castle Hill - West are much higher than the Australian average of $1,863, and rents are also well above the national median of $375.

Castle Hill - West features high concentrations of family households, with a higher-than-average median household size

Families make up 90.7% of all households in the area, consisting of couples with children at 59.3%, couples without children at 21.5%, and single parent households at 8.8%. Non-family households account for the remaining 9.3% of the total, with single person households at 8.9% and group households at 0.9%. The median household size of 3.3 people is higher than the Greater Sydney average of 2.7.

Educational achievement in Castle Hill - West places it within the top 10% nationally, reflecting strong academic performance and high qualification levels across the community

Educational levels in Castle Hill - West are high, with 47.6% of residents aged 15+ holding a university degree, compared to NSW at 32.2% and Australia at 30.4%. This gives the area a strong position for white-collar employment. Bachelor degrees are the most common qualification at 30.4%, followed by postgraduate degrees at 14.7% and graduate diplomas at 2.5%. Vocational training is held by 22.6% of residents aged 15 and over, split between advanced diplomas at 11.9% and certificates at 10.7%.

Participation in study is high, with 31.6% of residents enrolled in an educational institution. This is made up of 10.1% in high schools, 9.6% in primary schools, and 7.2% in universities or colleges.

Transport servicing is high compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

Public transport services in Castle Hill - West consist of 26 active bus stops. These stops are served by 60 routes, providing a total of 4,029 passenger trips each week. Transport accessibility is high, with the average distance to a stop being 185 meters. As a residential suburb, most working residents commute out of the area, with 88% traveling by car and 6% by train. Car ownership is high, averaging 1.9 vehicles per household, which is above the regional average. A high proportion of residents (54.6%) worked from home according to the 2021 Census, which may have been influenced by pandemic conditions.

Bus services average 575 trips per day across all routes, which is equal to about 154 weekly trips for each bus stop in the suburb.

Castle Hill - West's residents boast exceedingly positive health performance metrics with very low prevalence of common health conditions across all age groups

Health data shows positive trends for Castle Hill - West, with low rates of common chronic illnesses across all age groups and a high level of private health insurance coverage at approximately 68% of the population (3,520 people). This is higher than the Greater Sydney average of 59.9% and the national rate of 55.7%.

The most common chronic conditions in the neighborhood are asthma and arthritis, affecting 5.3% and 4.9% of residents, respectively. A high 78.7% of the population reported having no chronic medical conditions, compared to 74.6% in Greater Sydney. Residents aged 65 and over make up 18.5% of the population (966 people), which is higher than the Greater Sydney average of 15.5%. While health outcomes for older residents are positive, their national ranking is lower than that of the younger local population.

Castle Hill - West is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Castle Hill - West shows a high level of cultural diversity, with 46.7% of the population born outside Australia and 47.0% speaking a non-English language at home. Christianity is the most common religion, practiced by 53.4% of residents. The most significant religious overrepresentation is Hinduism, which is practiced by 8.9% of the population compared to 5.2% across Greater Sydney.

In terms of ancestral background, the three largest groups in Castle Hill - West are Other at 17.1%, Chinese at 15.0% (which is higher than the regional average of 8.4%), and Australian at 13.8%. There is also a high representation of other backgrounds compared to the regional averages: Sri Lankan background is at 2.0% (compared to 0.3% regionally), Korean is at 2.4% (compared to 1.1%), and Indian is at 8.0% (compared to 3.6%).

Castle Hill - West's population is slightly older than the national pattern

The median age in Castle Hill - West is 41 years, which is older than the Greater Sydney average of 37 and the national median of 38. The 55 - 64 age group is larger than the regional average, making up 13.9% of the local population, while the 25 - 34 bracket is smaller at 8.7%. Since the 2021 Census, the 75 to 84 age group has increased from 3.4% to 6.4% of the population, and the 65 to 74 group has grown from 9.3% to 11.0%. In contrast, the 5 to 14 age group has fallen from 14.4% to 12.2%, and the 0 to 4 group has dropped from 4.5% to 2.9%. Projections suggest the age profile will change by 2041, with the 75 to 84 cohort expected to grow by 67%, adding 221 people to reach 555. Older residents aged 65 and over will account for all net population growth, while the 0 to 4 and 45 to 54 groups are expected to contract.