Castle Hill - North
Statistical Area - sa2

Population growth drivers in Castle Hill - North are strong compared to national averages based on AreaSearch's ranking of recent, and medium to long-term trends

Castle Hill - North's population is approximately 13,186 as of November 2025. This figure reflects an increase of 997 people since the 2021 Census, which reported a population of 12,189. The change is 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, higher than the average across national locations assessed by AreaSearch. Castle Hill - North's growth rate of 8.2% since the 2021 census exceeds both the SA3 area (6.6%) and the state level, making it a growth leader in the region. Overseas migration contributed approximately 88.1% of overall population gains during recent periods.

AreaSearch is using ABS/Geoscience Australia projections for each SA2 area, released in 2024 with 2022 as the base year. For areas not covered by this data, NSW State Government's SA2 level projections are used, 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. Based on demographic trends and latest population numbers, Castle Hill - North is predicted to experience exceptional growth, placing it in the top 10 percent of statistical areas analysed by AreaSearch. By 2041, the area is expected to expand by 6,842 persons, reflecting an 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 an average of 81 new homes approved annually over the past five financial years, with a total of 406 approvals between FY21-FY25 and another 133 so far in FY26. The area has had an average of 0.3 people moving in for each dwelling built over those five years. This suggests that new supply is meeting or exceeding demand, providing ample buyer choice and creating capacity for population growth beyond current forecasts.

Developers are focusing on the premium market, with an average construction cost value of $521,000 per dwelling. In FY26, commercial approvals have reached $75.8 million, indicating high levels of 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 development activity. The current housing mix is shifting towards more compact living, with 29% detached dwellings and 71% attached dwellings, compared to the current housing mix of 83% houses. This change reflects reduced availability of development sites and addresses shifting lifestyle demands and affordability requirements, attracting downsizers, investors, and first-time purchasers.

With around 277 people moving in for each dwelling approval, Castle Hill - North shows a developing market with potential for future growth. By 2041, the area is expected to grow by approximately 6,228 residents. If current development rates continue, housing supply may not keep pace with population growth, potentially increasing competition among buyers and supporting stronger price growth in the future.

Castle Hill - North has moderate levels of nearby infrastructure activity, ranking in the top 50% nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch identified 24 projects likely affecting the region. Notable initiatives include Hills Shire Council's Delivery Program and Operational Plan 2024-2025 Infrastructure Works, Chapman Gardens by CG Group, Hills Showground Village by Deicorp, and Castle Hill Showground Revitalisation. The following list details projects most relevant to the area.

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 an educated workforce with professional services well represented. The unemployment rate was 4.0% in the past year, with estimated employment growth of 2.2%.

As of June 2025, 6,742 residents are employed, and the unemployment rate is 0.2% lower than Greater Sydney's rate of 4.2%. Workforce participation is similar to Greater Sydney at 60.0%. Major 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 appears to offer limited local employment opportunities based on Census data comparisons. Between June 2024 and June 2025, employment levels increased by 2.2%, labour force grew by 3.1%, causing the unemployment rate to rise by 0.9 percentage points. In Greater Sydney, employment grew by 2.6%, labour force expanded by 2.9%, with unemployment rising by 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May 2025 suggest that Castle Hill - North's employment could grow by approximately 7.0% over five years and 14.3% over ten years, based on industry-specific projections.

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

Castle Hill - North has a median taxpayer income of $59,175 and an average income of $87,832 according to the latest postcode level ATO 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. Based on Wage Price Index growth of 12.61% since financial year 2022, current estimates would be approximately $66,637 (median) and $98,908 (average) as of September 2025. Census data reveals household incomes rank exceptionally at the 94th percentile ($2,721 weekly). Distribution data shows the $4000+ earnings band captures 32.0% of the community (4,219 individuals), contrasting with the surrounding region where the $1,500 - 2,999 bracket leads at 30.9%. Economic strength emerges through 45.8% of households achieving high weekly earnings exceeding $3,000, supporting elevated consumer spending. Housing accounts for 14.4% of income while strong earnings rank residents within 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

In Castle Hill - North, as per the latest Census evaluation, 83.2% of dwellings were houses with the remaining 16.8% being semi-detached homes, apartments, or other types of dwellings. This compares to Sydney metro's figures of 78.2% houses and 21.8% other dwellings. Home ownership in Castle Hill - North stood at 40.9%, with mortgaged properties at 39.9% and rented dwellings at 19.1%. The median monthly mortgage repayment was $3,000, aligning with the Sydney metro average, while the median weekly rent was $600 compared to Sydney metro's $3,000 and $580 respectively. Nationally, Castle Hill - North's median monthly mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially above the national figure of $375.

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

Family households constitute 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 comprise the remaining 13.3%, with lone person households at 12.4% and group households at 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

Educational attainment in Castle Hill - North is notably higher than broader benchmarks. Among residents aged 15+, 45.1% hold university qualifications compared to 30.4% nationally and 32.2% in NSW. Bachelor degrees are the most common at 28.1%, followed by postgraduate qualifications (13.6%) and graduate diplomas (3.4%). Vocational pathways account for 24.9% of qualifications, with advanced diplomas at 10.8% and certificates at 14.1%.

Educational participation is high, with 31.7% currently enrolled in formal education. This includes 10.5% in secondary education, 9.7% in primary education, and 6.6% pursuing tertiary education. Castle Hill - North's three schools have a combined enrollment of 3,599 students as of the latest data. The area demonstrates significant socio-educational advantages and academic achievement, with an ICSEA score of 1127. Education provision is balanced with two primary and one secondary school serving distinct age groups. As of recent figures, the area functions as an education hub with 27.4 school places per 100 residents, significantly above the regional average of 17.4. This attracts students from surrounding communities.

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

Analysis of public transport in Castle Hill - North shows 83 active transport stops operating. These include a mix of lightrail and bus services. There are 134 individual routes servicing these stops, collectively providing 6505 weekly passenger trips.

Transport accessibility is rated excellent, with residents typically located 170 meters from the nearest stop. Service frequency averages 929 trips per day across all routes, equating 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 for 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 significant majority, 75.5%, report being completely free from medical ailments, slightly lower than the Greater Sydney average of 75.9%. As of 2018, approximately 19.4% of residents are aged 65 and over (2,564 people). Health outcomes among seniors in this area align closely with those of the general population.

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 has notable cultural diversity, with 40.5% speaking a language other than English at home and 42.9% born overseas. Christianity is the dominant religion at 55.1%. Hinduism's representation is higher here 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%). Korean, Lebanese, and Sri Lankan ethnicities show notable divergences: Korean is overrepresented at 2.6% vs regional 2.3%, Lebanese at 2.3% vs 1.6%, and Sri Lankan at 0.8% vs 1.0%.

Castle Hill - North hosts an older demographic, ranking in the top quartile nationwide

The median age in Castle Hill - North is 43 years, which is higher than Greater Sydney's average of 37 and exceeds the national average of 38 years. The age profile shows that those aged 65-74 are particularly prominent at 11.2%, while those aged 25-34 make up a smaller proportion at 7.3% compared to Greater Sydney. Between 2021 and present, the population of those aged 15-24 has grown from 13.3% to 14.8%. Conversely, the age group of 55-64 has declined from 12.9% to 11.5%. By 2041, demographic projections indicate significant shifts in Castle Hill - North's age structure, with the 15-24 age cohort projected to rise substantially by 1,161 people (60%), increasing from 1,951 to 3,113.