Castle Hill - West

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

Based on AreaSearch's analysis, Castle Hill - West's population is around 5,195 as of Feb 2026. This reflects an increase of 12 people (0.2%) since the 2021 Census, which reported a population of 5,183 people. The change is inferred from the estimated resident population of 5,192 from the ABS as of June 2024 and an additional 4 validated new addresses since the Census date. This population level equates to a density ratio of 3,167 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Population growth for the area was primarily driven by overseas migration, which contributed approximately 77.1% of overall population gains during recent periods.

AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For any SA2 areas not covered by this data, AreaSearch utilizes the NSW State Government's SA2 level projections, as released in 2022 with 2021 as the base year. Growth rates by age group from these aggregations are also applied to all areas for years 2032 to 2041. Regarding demographic trends, projections indicate a decline in overall population, with the area's population expected to contract by 113 persons by 2041 according to this methodology. However, growth across specific age cohorts is anticipated, led by the 75 to 84 age group, which is projected to expand by 287 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 averaged around 2 new dwelling approvals each year, totalling 12 homes over the past 5 financial years. So far in FY-26, 0 approvals have been recorded. Given population has fallen over the past period, new supply has likely been keeping up with demand, offering good choice to buyers, while new homes are being built at an average value of $713,000, demonstrating a developer focus on the premium segment with upmarket properties. Additionally, $162,000 in commercial development approvals have been recorded this financial year, suggesting a predominantly residential focus.

Relative to Greater Sydney, Castle Hill - West has significantly less development activity. This scarcity of new homes typically strengthens demand and prices for existing properties, though development activity has picked up in recent periods. This is likewise lower than nationally, reflecting market maturity and pointing to possible development constraints. Further, recent development has been entirely comprised of detached dwellings, maintaining the area's traditional suburban character with a focus on family homes appealing to those seeking space. At around 1168 people per approval, Castle Hill - West shows a mature, established area.

With population projections showing stability or decline, Castle Hill - West should see reduced housing demand pressures, benefiting potential buyers.

Castle Hill - West has emerging levels of nearby infrastructure activity, ranking in the 37thth percentile nationally

Nothing can influence an area's performance as much as changes to local infrastructure, major projects, and planning initiatives. In total 11 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include the Castle Hill North Precinct Plan, Hills Showground Station Precinct, Dawes Avenue Residential Development, and Castle Towers Expansion, with the list below detailing those likely to be of 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.

Employment performance in Castle Hill - West exceeds national averages across key labour market indicators

Castle Hill - West has a highly educated workforce, with professional services showing strong representation and an unemployment rate of only 3.0%. As of December 2025, 3,046 residents are in work, while the unemployment rate is 1.1% below Greater Sydney's rate of 4.2%, and workforce participation is broadly similar to Greater Sydney's 70.2%. Based on Census responses, a high 54.6% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

The key industries of employment among residents are professional & technical, health care & social assistance, and education & training. The area demonstrates a particularly notable concentration in professional & technical, with employment levels at 1.3 times the regional average. Meanwhile, transport, postal & warehousing has a limited presence with 3.3% employment compared to 5.3% regionally. The predominantly residential area appears to offer limited employment opportunities locally, as indicated by the count of the Census working population versus the resident population.

Based on AreaSearch analysis of SALM and ABS data, during the year to December 2025, the labour force decreased by 0.2% while employment declined by 0.8%, causing the unemployment rate to rise by 0.6 percentage points. In contrast, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%, with a marginal rise. Jobs and Skills Australia's national employment forecasts from May-25 can offer further insight into potential future demand within Castle Hill - West. These projections, covering five and ten-year periods, have been mapped against the local employment profile to estimate growth patterns. While national employment is forecast to expand by 6.6% over five years and 13.7% over ten years, growth rates differ significantly between industry sectors. Applying these industry-specific projections to Castle Hill - West's employment mix suggests local employment should increase by 7.1% over five years and 14.4% over ten years (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

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

AreaSearch's latest postcode level ATO data for FY-23 reveals that income in the Castle Hill - West SA2 is extremely high nationally, with the median assessed at $66,882 while the average income stands at $94,161. This contrasts with Greater Sydney's figures of a median income of $60,817 and an average income of $83,003. Based on Wage Price Index growth of 8.86% since FY-23, current estimates would be approximately $72,808 (median) and $102,504 (average) as of September 2025. Census 2021 income data shows household, family and personal incomes all rank highly in Castle Hill - West, between the 83rd and 98th percentiles nationally. Income analysis reveals the $4000+ earnings band captures 39.4% of the community (2,046 individuals), differing from patterns across the surrounding region where $1,500 - 2,999 dominates with 30.9%. Economic strength emerges through 57.0% of households achieving high weekly earnings exceeding $3,000, supporting elevated consumer spending. After housing costs, residents retain 86.7% of income, reflecting strong purchasing power, and the area's SEIFA income ranking places it in the 10th decile.

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

Dwelling structure within Castle Hill - West, as evaluated at the latest Census, comprised 86.4% houses and 13.7% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Sydney metro's 55.9% houses and 44.1% other dwellings. Meanwhile, the level of home ownership within Castle Hill - West was well beyond that of Sydney metro, at 35.6%, with the remainder of dwellings either mortgaged (49.8%) or rented (14.6%). The median monthly mortgage repayment in the area was well above the Sydney metro average at $3,000, while the median weekly rent figure was recorded at $692, compared to Sydney metro's $2,427 and $470. Nationally, Castle Hill - West's mortgage repayments are significantly higher than the Australian average of $1,863, while rents are substantially above the national figure of $375.

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

Family households dominate at 90.7% of all households, comprising 59.3% couples with children, 21.5% couples without children, and 8.8% single parent families. Non-family households make up the remaining 9.3%, with lone person households at 8.9% and group households comprising 0.9% of the total. The median household size of 3.3 people is larger 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 attainment in Castle Hill - West significantly surpasses broader benchmarks, with 47.6% of residents aged 15+ holding university qualifications compared to 30.4% in Australia and 32.2% in NSW. This substantial educational advantage positions the area strongly for knowledge-based opportunities. Bachelor degrees lead at 30.4%, followed by postgraduate qualifications (14.7%) and graduate diplomas (2.5%). Vocational pathways account for 22.6% of qualifications among those aged 15+ – advanced diplomas (11.9%) and certificates (10.7%).

Educational participation is notably high, with 31.6% of residents currently enrolled in formal education. This includes 10.1% in secondary education, 9.6% in primary education, and 7.2% pursuing tertiary education.

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

Public transport analysis reveals 26 active transport stops operating within Castle Hill - West, comprising a mix of buses. These stops are serviced by 60 individual routes, collectively providing 4,029 weekly passenger trips. Transport accessibility is rated as excellent, with residents typically located 185 meters from the nearest transport stop. As a primarily residential area, most residents commute outward; the car remains the dominant mode at 88%, with 6% by train. Vehicle ownership averages 1.9 per dwelling, which is above the regional average. A high 54.6% of residents work from home (2021 Census; may reflect COVID-19 conditions).

Service frequency averages 575 trips per day across all routes, equating to approximately 154 weekly trips per individual stop.

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

Health outcomes data demonstrates outstanding results across Castle Hill - West, based on AreaSearch's assessment of mortality rates and chronic condition prevalence. There is a very low prevalence of common health conditions across all age groups, and the rate of private health cover is exceptionally high at approximately 68% of the total population (3,506 people). This compares to 59.9% across Greater Sydney and a national average of 55.7%.

The most common medical conditions in the area are asthma and arthritis, impacting 5.3% and 4.9% of residents, respectively, while 78.7% declared themselves as completely clear of medical ailments compared to 74.6% across Greater Sydney. The area has 18.3% of residents aged 65 and over (949 people), which is higher than the 15.4% in Greater Sydney. Health outcomes among seniors are particularly strong, though they rank lower nationally than the broader 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 scores highly on cultural diversity, with 46.7% of its population born overseas and 47.0% speaking a language other than English at home. The main religion in Castle Hill - West is Christianity, which makes up 53.4% of the people. However, the most apparent overrepresentation is in Hinduism, which comprises 8.9% of the population, compared to 5.2% across Greater Sydney.

In terms of ancestry (country of birth of parents), the top three represented groups in Castle Hill - West are Other, comprising 17.1% of the population, Chinese, comprising 15.0% of the population, which is substantially higher than the regional average of 8.4%, and Australian, comprising 13.8% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: Sri Lankan is notably overrepresented at 2.0% of Castle Hill - West (vs 0.3% regionally), Korean at 2.4% (vs 1.1%) and Indian at 8.0% (vs 3.6%).

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

At 41 years, Castle Hill - West's median age is significantly above the Greater Sydney average of 37 and somewhat older than the Australian median of 38. Compared to the Greater Sydney average, the 55 - 64 cohort is notably over-represented (14.1% locally), while 25 - 34 year-olds are under-represented (8.3%). Following the 2021 Census, the 75 to 84 age group has grown from 3.4% to 6.3% of the population, while the 65 to 74 cohort increased from 9.3% to 10.9%. Conversely, the 5 to 14 cohort has declined from 14.4% to 12.7% and the 45 to 54 group dropped from 16.3% to 14.9%. Demographic modeling suggests Castle Hill - West's age profile will evolve significantly by 2041. The 75 to 84 cohort shows the strongest projected growth at 66%, adding 218 residents to reach 547. Demographic aging continues as residents 65 and older represent 100% of anticipated growth. On the other hand, population declines are projected for the 0 to 4 and 45 to 54 cohorts.