Castle Hill - Central
Statistical Area - sa2

Castle Hill - Central has seen population growth performance typically on par with national averages when looking at short and medium term trends

Castle Hill - Central's population is approximately 9,395 as of August 2025. This figure represents an increase of 1,718 people since the 2021 Census, which recorded a population of 7,677. The increase is inferred from the estimated resident population of 8,534 in June 2024 and an additional 846 validated new addresses since the Census date. This results in a population density ratio of 2,263 persons per square kilometer, higher than the average across national locations assessed by AreaSearch. Castle Hill - Central's growth rate of 22.4% since the 2021 Census exceeds both the SA3 area (5.6%) and the state average, positioning it as a growth leader in the region. Overseas migration contributed approximately 80.8% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data, AreaSearch utilises NSW State Government's SA2 level projections, released in 2022 with a base year of 2021. Growth rates by age group from these aggregations are applied to all areas for the years 2032 to 2041. Looking ahead, Castle Hill - Central is predicted to experience exceptional growth, placing it in the top 10 percent of Australian statistical areas. By 2041, based on the latest population numbers, the area is expected to expand by 8,605 persons, marking an increase of 80.2% over the 17-year period.

AreaSearch assessment of residential development activity positions Castle Hill - Central among the top 25% of areas assessed nationwide

Castle Hill - Central has approved around 685 residential properties each year over the past five financial years, totalling 3,428 homes. In FY-26 so far, 5 approvals have been recorded. On average, 0.1 people moved to the area annually for each dwelling built between FY-21 and FY-25. This indicates that new construction is matching or exceeding demand, providing more options for buyers and enabling population growth.

The average expected construction cost of new properties is $446,000, aligning with regional trends. In this financial year, there have been $55.8 million in commercial approvals, showing strong commercial development momentum. Compared to Greater Sydney, Castle Hill - Central has 837.0% higher new home approvals per person, offering greater choice for buyers and indicating robust developer interest. New developments consist of 2.0% detached houses and 98.0% attached dwellings, providing affordable entry pathways and attracting downsizers, investors, and first-time purchasers. This shift marks a significant departure from the current housing pattern of 60.0% houses, suggesting diminishing developable land availability and responding to evolving lifestyle preferences and housing affordability needs. The location has approximately 123 people per dwelling approval, indicating an expanding market. Population forecasts suggest Castle Hill - Central will gain 7,533 residents by 2041.

With current construction levels, housing supply should adequately meet demand, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Castle Hill - Central has moderate levels of nearby infrastructure activity, ranking in the 46thth percentile nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified 26 projects that could impact the area. Notable projects include Castle Towers Expansion, Castle Hill Panorama, Castle Grange, and Hills Showground East Precinct. The following details projects likely to be most relevant.

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 - Central has seen below average employment performance when compared to national benchmarks

Castle Hill - Central has a highly educated workforce with strong representation in professional services. The unemployment rate was 4.6% as of June 2025, with an estimated employment growth of 1.2% over the past year.

In this period, 4,196 residents were employed while the unemployment rate was 0.4% higher than Greater Sydney's rate of 4.2%. Workforce participation stood at 63.8%, slightly above Greater Sydney's 60.0%. Employment is concentrated in health care & social assistance (27.5%), professional & technical services (19.2%), and education & training (11.3%).

In contrast, transport, postal & warehousing employs only 3.3% of local workers, lower than Greater Sydney's 5.3%. The area functions as an employment hub with 1.2 jobs per resident, attracting workers from surrounding areas. Over the 12 months to June 2025, employment increased by 1.2%, while labour force grew by 3.0%, leading to a rise in unemployment rate of 1.7 percentage points. In comparison, Greater Sydney saw employment growth of 2.6% and an unemployment rate increase of 0.3%. Jobs and Skills Australia's national employment forecasts from May 2025 project national employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Castle Hill - Central's employment mix suggests local growth of approximately 7.0% over five years and 14.3% over ten years, though these are simple extrapolations for illustrative purposes only and do not account for localised population projections.

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

Castle Hill - Central had one of Australia's highest incomes according to latest ATO data aggregated by AreaSearch for financial year 2022. Its median income among taxpayers was $56,731 and average income stood at $83,714, compared to Greater Sydney's figures of $56,994 and $80,856 respectively. Based on Wage Price Index growth of 12.61% since financial year 2022, current estimates would be approximately $63,885 (median) and $94,270 (average) as of September 2025. Census data shows household, family and personal incomes all rank highly in Castle Hill - Central, between the 73rd and 86th percentiles nationally. The earnings profile reveals that 31.3% of the population (2,940 individuals) fall within the $1,500-$2,999 income range, mirroring the region where 30.9% occupy this bracket. A substantial proportion of high earners, at 37.7%, indicates strong economic capacity throughout Castle Hill - Central. High housing costs consume 16.8% of income, yet strong earnings place disposable income at the 84th percentile and the area's SEIFA income ranking places it in the 9th decile.

Castle Hill - Central displays a diverse mix of dwelling types, with a higher proportion of rental properties than the broader region

In Castle Hill - Central, as recorded in the latest Census, houses accounted for 60.4% of dwellings while other types such as semi-detached homes, apartments, and 'other' dwellings made up 39.6%. In contrast, Sydney metropolitan area had 78.2% houses and 21.8% other dwellings. Home ownership in Castle Hill - Central stood at 32.6%, with mortgaged dwellings at 35.8% and rented ones at 31.6%. The median monthly mortgage repayment was $2,700, lower than Sydney's average of $3,000. Weekly rent median was $550 compared to Sydney's $580. Nationally, Castle Hill - Central had higher mortgage repayments ($2,700 vs Australian average of $1,863) and rents ($550 vs national figure of $375).

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

Family households constitute 80.1% of all households, including 45.0% couples with children, 23.5% couples without children, and 10.5% single parent families. Non-family households make up the remaining 19.9%, with lone person households at 18.2% and group households comprising 1.7%. The median household size is 2.9 people, which is smaller than the Greater Sydney average of 3.0.

Castle Hill - Central shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

Educational attainment in Castle Hill - Central is significantly higher than broader benchmarks. As of 2016, 47.9% of residents aged 15 and above hold university qualifications, compared to 30.4% nationally and 32.2% in NSW. Bachelor degrees are the most common at 30.0%, followed by postgraduate qualifications (15.1%) and graduate diplomas (2.8%). Vocational pathways account for 24.4% of qualifications among those aged 15 and above, with advanced diplomas making up 11.0% and certificates 13.4%.

Educational participation is high, with 32.0% of residents currently enrolled in formal education as of 2016. This includes 11.9% in primary education, 8.7% in secondary education, and 5.9% pursuing tertiary education. As of 2016, the four schools in Castle Hill - Central have a combined enrollment of 2,071 students. The area has significant socio-educational advantages and academic achievement, with an ICSEA score of 1105. The educational mix includes one primary school, two secondary schools, and one K-12 school. School capacity exceeds typical residential needs, with 22.0 places per 100 residents compared to the regional average of 17.4, indicating that the area serves as an educational center for the broader region. Note: where schools show 'n/a' for enrolments, please refer to the parent campus.

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

Castle Hill - Central has 54 active public transport stops, operating a mix of lightrail and bus services. These stops are served by 89 individual routes, collectively providing 7,064 weekly passenger trips. Residents have excellent transport accessibility, typically living within 172 meters of the nearest stop.

Service frequency averages 1,009 trips per day across all routes, equating to approximately 130 weekly trips per stop.

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

Health outcomes data for Castle Hill - Central shows very low prevalence of common health conditions across all age groups. The rate of private health cover is exceptionally high at approximately 61% of the total population (5,759 people), compared to 63.7% across Greater Sydney and a national average of 55.3%. The most common medical conditions are asthma and arthritis, impacting 6.2 and 6.0% of residents respectively.

A total of 76.4% of residents declared themselves completely clear of medical ailments, compared to 75.9% across Greater Sydney. The area has 17.2% of residents aged 65 and over (1,613 people), which is lower than the 18.9% in Greater Sydney. Health outcomes among seniors are particularly strong, broadly in line with the general population's health profile.

Castle Hill - Central 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 - Central has a high level of cultural diversity, with 45.7% of its population speaking a language other than English at home and 46.5% born overseas. Christianity is the predominant religion in Castle Hill - Central, making up 49.7% of people there. However, Hinduism is overrepresented compared to Greater Sydney, comprising 6.6% versus 8.6%.

The top three ancestry groups are English (16.8%), Chinese (16.2%), and Australian (15.0%). Other ethnic groups with notable differences include Korean at 3.6% (versus 2.3% regionally), Spanish at 0.9% (versus 0.5%), and Russian at 0.6% (versus 0.4%).

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

The median age of Castle Hill - Central is 40, which is slightly higher than Greater Sydney's figure of 37 and Australia's national average of 38 years. The 45-54 cohort is notably over-represented in Castle Hill - Central at 15.4%, compared to the Greater Sydney average, while the 25-34 year-olds are under-represented at 9.2%. Between 2021 and present, the 15-24 age group has increased from 11.5% to 13.5%, and the 75-84 cohort has risen from 5.2% to 6.5%. Conversely, the 35-44 cohort has decreased from 17.2% to 15.7%, and the 5-14 group has dropped from 16.2% to 15.0%. Demographic projections suggest that Castle Hill - Central's age profile will change significantly by 2041, with the 45-54 age cohort projected to surge dramatically, expanding by 1,520 people (105%) from 1,443 to 2,964.