Castle Hill - North

Population growth drivers in Castle Hill - North are slightly above average based on AreaSearch's ranking of recent, and medium term trends

Castle Hill - North's population is approximately 13,186 as of November 2025. This figure reflects an increase of 997 people, representing an 8.2% growth since the 2021 Census which reported a population of 12,189. The change was inferred from the estimated resident population of 12,625 in June 2024 and an additional 602 validated new addresses since the Census date. This results in a population density ratio of 1,936 persons per square kilometer, exceeding the average seen across national locations assessed by AreaSearch. Castle Hill - North's growth rate of 8.2% since the 2021 census surpassed both the SA3 area (6.6%) and the state level, positioning it as a growth leader in the region. Overseas migration accounted for approximately 88.1% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with 2022 as the base year. For areas not covered by this data, AreaSearch uses NSW State Government's SA2 level projections, released in 2022 with 2021 as the base year. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. Looking ahead, Castle Hill - North is predicted to experience exceptional growth, placing it among the top 10 percent of statistical areas analysed by AreaSearch. By 2041, the area is expected to expand by 6,842 persons based on the latest annual ERP population numbers, reflecting a total increase of 47.2% over the 17-year period.

AreaSearch analysis of residential development drivers sees Castle Hill - North recording a relatively average level of approval activity when compared to local markets analysed countrywide

Castle Hill - North has seen approximately 81 new homes approved annually over the past five financial years, with a total of 406 homes approved between FY21 and FY25. As of FY26374 homes have been approved. The average number of people moving to the area per dwelling built over these five years is 0.3.

This indicates that new supply is meeting or exceeding demand, providing ample buyer choice and capacity for population growth beyond current forecasts. The average construction cost value of new dwellings in the area is $521,000, suggesting a focus on the premium market with high-end developments. In FY26, $75.8 million worth of commercial approvals have been registered, indicating significant local commercial activity. Compared to Greater Sydney, Castle Hill - North has around two-thirds the rate of new dwelling approvals per person and ranks among the 57th percentile nationally in terms of assessed areas. The current housing mix is shifting, with new development consisting of 29.0% detached dwellings and 71.0% attached dwellings, compared to the current housing mix of 83.0% houses.

This shift towards compact living offers affordable entry pathways and attracts downsizers, investors, and first-time purchasers. With around 277 people per dwelling approval, Castle Hill - North shows a developing market with approximately 6,228 residents expected to move in by 2041. If current development rates continue, housing supply may not keep pace with population growth, potentially increasing competition among buyers and supporting stronger price growth.

Castle Hill - North has strong levels of nearby infrastructure activity, ranking in the top 30% nationally

Area infrastructure significantly impacts performance. AreaSearch identified 24 projects potentially affecting the area. Key projects include Commercial and Retail Development at 21-23 Victoria Avenue, Castle Hill (no completion date specified), Castle Hill Showground Revitalisation (scheduled for completion in June 2023), Cecil & Roger Mixed-Use Development (expected completion in late 2024), and Hills Shire Council Delivery Program and Operational Plan 2024-2025 Infrastructure Works (covering the period from July 1, 2024, to June 30, 2025). The following list details those most relevant.

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

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Employment conditions in Castle Hill - North remain below the national average according to AreaSearch analysis

Castle Hill - North has a highly educated workforce with strong professional services representation. Its unemployment rate was 3.9% as of September 2025.

The local employment stability over the past year is relative. There are 6,589 residents in work, with an unemployment rate of 3.6%, 0.3% below Greater Sydney's rate of 4.2%. Workforce participation is similar to Greater Sydney's at 60.0%.

Dominant employment sectors include health care & social assistance, professional & technical services, and retail trade. Transport, postal & warehousing employs only 2.7% of local workers, below Greater Sydney's 5.3%. The area offers limited local employment opportunities as indicated by Census data. Between September 2024 and September 2025, employment levels increased by 0.2%, labour force by 0.6%, causing unemployment to rise by 0.4 percentage points. In comparison, Greater Sydney saw employment grow by 2.1% and unemployment rise by 0.2 percentage points. State-level data from 25-Nov-25 shows NSW employment contracted by 0.03%, with a state unemployment rate of 3.9%. National unemployment was 4.3%. Jobs and Skills Australia's national employment forecasts, released in May-25, project national employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Castle Hill - North's employment mix suggests local employment should increase by 7.0% over five years and 14.3% over ten years, based on a simple weighting extrapolation for illustrative purposes only.

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

The Castle Hill - North SA2 postcode shows a median taxpayer income of $59,175 and an average income of $87,832 based on the latest Australian Taxation Office data aggregated by AreaSearch for financial year 2022. This is among the highest in Australia, contrasting with Greater Sydney's median income of $56,994 and average income of $80,856. By September 2025, estimates suggest a median income of approximately $66,637 and an average income of $98,908 based on Wage Price Index growth of 12.61% since financial year 2022. Census data indicates household incomes rank at the 94th percentile with weekly earnings of $2,721. The distribution shows that 32.0% of individuals earn over $4,000 annually, contrasting with surrounding regions where the $1,500 - 2,999 bracket leads at 30.9%. Economic strength is evident with 45.8% of households achieving high weekly earnings exceeding $3,000, supporting elevated consumer spending. Housing expenses account for 14.4% of income. Residents rank in the 94th percentile for disposable income and the area's SEIFA income ranking places it in the 9th decile.

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

As of the latest Census, dwelling structures in Castle Hill - North consisted of 83.2% houses and 16.8% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Sydney metro's 78.2% houses and 21.8% other dwellings. Home ownership in Castle Hill - North stood at 40.9%, with mortgaged dwellings at 39.9% and rented ones at 19.1%. The median monthly mortgage repayment was $3,000, aligning with Sydney metro's average, while the median weekly rent was $600, compared to Sydney metro's $3,000 and $580 respectively. Nationally, Castle Hill - North's mortgage repayments were higher at $3,000 versus Australia's average of $1,863, and rents were substantially above the national figure of $375 at $600.

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

Family households account for 86.7% of all households, including 49.7% couples with children, 27.4% couples without children, and 8.9% single parent families. Non-family households constitute the remaining 13.3%, with lone person households at 12.4% and group households making up 1.1%. The median household size is 3.1 people, larger than the Greater Sydney average of 3.0.

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

Castle Hill - North has a notably higher educational attainment than national and state averages. Among residents aged 15+, 45.1% have university qualifications, compared to Australia's 30.4% and New South Wales' (NSW) 32.2%. The area's educational advantage is evident in the high proportion of residents with bachelor degrees (28.1%), postgraduate qualifications (13.6%), and graduate diplomas (3.4%). Vocational pathways are also well-represented, with advanced diplomas at 10.8% and certificates at 14.1%.

Educational participation is notably high, with 31.7% of residents currently enrolled in formal education. This includes secondary education (10.5%), primary education (9.7%), and tertiary education (6.6%).

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

Castle Hill - North has 83 active public transport stops offering a mix of light rail and bus services. These stops are served by 134 different routes that collectively facilitate 6,505 weekly passenger trips. The area's transport accessibility is rated excellent, with residents typically residing just 170 meters from the nearest stop.

On average, there are 929 trips per day across all routes, translating to approximately 78 weekly trips per individual stop.

Castle Hill - North'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 in Castle Hill - North, with very low prevalence of common health conditions across all age groups. The rate of private health cover is exceptionally high at approximately 64% of the total population (8,412 people), compared to the national average of 55.3%.

The most prevalent medical conditions are arthritis and asthma, affecting 6.0% and 6.0% of residents respectively. A majority, 75.5%, report being completely free from medical ailments, slightly lower than Greater Sydney's 75.9%. In this area, 19.4% of residents are aged 65 and over (2,564 people). Health outcomes among seniors align with the general population's health profile.

Castle Hill - North 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-North ranks high in cultural diversity, with 40.5% of its population speaking a language other than English at home and 42.9% born overseas. Christianity is the predominant religion, accounting for 55.1%. Hinduism is overrepresented at 4.8%, compared to Greater Sydney's 8.6%.

The top three ancestry groups are English (17.9%), Australian (16.0%), and Chinese (15.2%). Notably, Korean (2.6% vs regional 2.3%), Lebanese (2.3% vs 1.6%), and Sri Lankan (0.8% vs 1.0%) groups are overrepresented.

Castle Hill - North's median age exceeds the national pattern

The median age in Castle Hill - North is 43 years, which is higher than Greater Sydney's average of 37 years and exceeds the national average of 38 years. The age profile shows that those aged 65-74 are particularly prominent, making up 11.2% of the population, while those aged 25-34 make up only 7.3%. Between 2021 and now, the proportion of the population aged 15-24 has increased from 13.3% to 14.8%, while the proportion of those aged 55-64 has decreased from 12.9% to 11.5%. By 2041, demographic projections indicate that the age cohort of 15-24 is expected to rise significantly, with an increase of 1,161 people (60%) from 1,951 to 3,113.