Castle Hill - Central

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 was around 10,661 as of November 2025. This figure represents an increase of 2,984 people since the 2021 Census, which recorded a population of 7,677. The growth is inferred from ABS estimated resident population data of 8,547 in June 2024 and validated new addresses totalling 1,278 post-Census date. This results in a density ratio of 2,568 persons per square kilometer, placing Castle Hill - Central in the upper quartile nationally according to AreaSearch assessments. The area's growth rate of 38.9% since the 2021 Census exceeded both its SA3 region (6.6%) and the state average, positioning it as a growth leader. Overseas migration contributed approximately 80.8% of overall population gains in recent periods.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area released in 2024 with a base year of 2022. For areas not covered by this data, NSW State Government's SA2 level projections released in 2022 with a base year of 2021 are utilised. Growth rates by age group from these aggregations are applied to all areas for the years 2032 to 2041. Based on demographic trends and latest annual ERP population numbers, Castle Hill - Central is predicted to experience exceptional growth, expanding by 8,605 persons to reach a total of 19,266 by 2041, reflecting an increase of 58.8% 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 recorded approximately 685 residential property approvals each year over the past five financial years, totalling 3,428 homes. As of FY-26292 approvals have been granted. Over these five years (FY-21 to FY-25), an average of 0.1 person per dwelling has moved to the area annually. This suggests new construction is keeping pace with demand, providing more options for buyers and potentially enabling population growth.

The average expected construction cost value of new properties is $446,000, aligning with regional trends. In FY-26, commercial approvals have reached $55.8 million, indicating robust commercial development momentum. Compared to Greater Sydney, Castle Hill - Central has shown 837.0% higher new home approvals per person as of the latest data. This high level of activity suggests strong developer interest in the area, exceeding the national average. The new developments primarily consist of attached dwellings (98.0%), with a small proportion being detached houses (2.0%). This shift from existing housing patterns (currently 60.0% houses) indicates diminishing developable land availability and responds to evolving lifestyle preferences and affordability needs. With approximately 123 people per dwelling approval, Castle Hill - Central's expanding market is expected to gain 6,267 residents by 2041, according to the latest AreaSearch quarterly estimate.

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

Castle Hill - Central has emerging levels of nearby infrastructure activity, ranking in the 31stth percentile nationally

Changes in local infrastructure significantly affect an area's performance. AreaSearch has identified 26 projects that could potentially impact this region. Notable projects include Castle Towers Expansion, Hills Showground East Precinct, Castle Hill Panorama, and Castle Grange. The following list details those expected to have the most relevance.

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. Its unemployment rate is 4.6%, with an estimated employment growth of 1.2% over the past year as of June 2025.

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 is standard at 63.8%, compared to Greater Sydney's 60.0%. Employment is concentrated in health care & social assistance (27.5%), professional & technical services (19.2%), and education & training (10.3%).

In contrast, transport, postal & warehousing employs only 3.3% of local workers, below Greater Sydney's 5.3%. There are 1.2 workers for every resident, indicating the area functions as an employment hub hosting more jobs than residents and attracting workers from surrounding areas. Over the 12 months to June 2025, employment increased by 1.2% while labour force grew by 3.0%, causing the unemployment rate to rise by 1.7 percentage points. In comparison, Greater Sydney saw employment rise by 2.6%, labour force grow by 2.9%, and unemployment increase by 0.3 percentage points. State-level data to Nov-25 shows NSW employment contracted by 0.03% (losing 2,260 jobs), with the state unemployment rate at 3.9%. This compares favourably to the national unemployment rate of 4.3%. National employment forecasts from May-25 project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Castle Hill - Central's employment mix suggests local employment should increase by 7.0% over five years and 14.3% over ten years, based on simple weighting extrapolation for illustrative purposes.

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

The Castle Hill - Central SA2 had one of Australia's highest income levels according to AreaSearch's aggregation of latest ATO data for financial year 2022. Its median taxpayer income was $56,731 and average income stood at $83,714, compared to Greater Sydney's figures of $56,994 and $80,856 respectively. By September 2025, estimated incomes would be approximately $63,885 (median) and $94,270 (average), based on Wage Price Index growth of 12.61% since financial year 2022. Census data shows Castle Hill - Central's household, family, and personal incomes rank highly nationally, between the 72nd and 86th percentiles. Income distribution reveals 31.3% (3,336 individuals) fall within the $1,500-$2,999 range, mirroring the regional average of 30.9%. Notably, 37.7% earn above $3,000 per week, indicating strong economic capacity. High housing costs consume 16.8% of income, yet strong earnings place disposable income at the 83rd percentile nationally. 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

Castle Hill - Central's dwelling structures, as per the latest Census, consisted of 60.4% houses and 39.6% other dwellings (semi-detached, apartments, 'other' dwellings). This contrasts with Sydney metro's figures of 78.2% houses and 21.8% other dwellings. Home ownership in Castle Hill - Central stood at 32.6%, lower than Sydney metro's level. Mortgaged dwellings accounted for 35.8%, while rented dwellings made up 31.6%. The median monthly mortgage repayment was $2,700, below the Sydney metro average of $3,000 but higher than the national average of $1,863. The median weekly rent in Castle Hill - Central was $550, higher than both the Sydney metro figure of $580 and the national average of $375.

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

Family households account for 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

Castle Hill - Central has a notably higher educational attainment than broader benchmarks. Among residents aged 15+, 47.9% hold university qualifications, compared to Australia's 30.4% and NSW's 32.2%. 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%, with advanced diplomas at 11.0% and certificates at 13.4%.

Educational participation is high, with 32.0% of residents currently enrolled in formal education. This includes 11.9% in primary education, 8.7% in secondary education, and 5.9% pursuing tertiary education.

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. These are a mix of lightrail and bus services. There are 89 individual routes operating, providing a total of 7,064 weekly passenger trips.

Residents' accessibility to these services is rated excellent, with an average distance of 172 meters to the nearest stop. The service frequency across all routes averages 1,009 trips per day, which equates to approximately 130 weekly trips per individual 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 shows excellent results for Castle Hill - Central, with 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 (6,535 people), compared to 63.7% across Greater Sydney and a national average of 55.3%. The most common medical conditions in the area are asthma and arthritis, affecting 6.2 and 6.0% of residents respectively, while 76.4% of residents declare themselves completely clear of medical ailments, compared to 75.9% across Greater Sydney.

The area has 17.2% of residents aged 65 and over (1,830 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, comprising 49.7% of people. Hinduism is overrepresented compared to Greater Sydney, making up 6.6% of Castle Hill-Central's population versus 8.6%.

The top three ancestry groups are English (16.8%), Chinese (16.2%), and Australian (15.0%). Korean (3.6%) and Spanish (0.9%) are notably overrepresented compared to regional figures, while Russian is slightly overrepresented at 0.6% versus 0.4%.

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

The median age in Castle Hill - Central is 40, which is slightly higher than Greater Sydney's figure of 37 and Australia's figure of 38. The 45-54 cohort is notably over-represented locally at 15.4%, compared to the Greater Sydney average, while the 25-34 age group is under-represented at 9.2%. Between 2021 and present, the 15-24 age group has grown from 11.5% to 13.5%, and the 75-84 cohort has increased from 5.2% to 6.5%. Conversely, the 35-44 cohort has declined from 17.2% to 15.7%, and the 5-14 age group has dropped from 16.2% to 15.0%. Demographic modeling indicates that Castle Hill - Central's age profile will significantly evolve by 2041, with the 45-54 cohort projected to grow significantly, expanding by 1,326 people (81%) from 1,637 to 2,964.