Castle Hill - West
Statistical Area - sa2

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

Castle Hill - West's population is approximately 5,195 as of November 2025. This figure represents an increase of 12 people since the 2021 Census, which recorded a population of 5,183. The change is inferred from the estimated resident population of 5,192 in June 2024 and four additional validated new addresses since the Census date. This results in a population density ratio of 3,167 persons per square kilometer, placing Castle Hill - West in the upper quartile relative to national locations assessed by AreaSearch. Recent population growth was primarily driven by overseas migration, contributing approximately 77.1% of overall population gains.

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, 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. According to these projections, Castle Hill - West's population is expected to decline by 113 persons by 2041. However, growth across specific age cohorts is anticipated, notably a projected expansion of 287 people in the 75 to 84 age group.

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 averaged approximately two new dwelling approvals per year over the past five financial years, totalling 12 homes. As of FY-26, no approvals have been recorded yet. The area's population has decreased during this period, suggesting that new supply has likely kept pace with demand, providing good options for buyers. New homes are being constructed at an average expected cost of $713,000, indicating a focus on the premium segment with high-end properties.

This financial year, $162,000 in commercial development approvals have been recorded, predominantly reflecting residential development activity compared to Greater Sydney. Relative to national trends, Castle Hill - West has less development activity, which typically strengthens demand and prices for existing properties. However, recent periods show an increase in development activity. Recent development has exclusively comprised detached dwellings, maintaining the area's traditional suburban character with a focus on family homes appealing to those seeking space. With approximately 1168 people per approval, Castle Hill - West demonstrates a mature, established area.

Population projections indicating stability or decline suggest reduced housing demand pressures in the future, benefiting potential buyers.

Castle Hill - West has very high levels of nearby infrastructure activity, ranking in the top 20% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified 11 projects likely to impact the area. Key projects include Castle Hill North Precinct Plan, Hills Showground Station Precinct, Dawes Avenue Residential Development, and Bella Vista Gardens. 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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Castle Hill - West ranks among the top 25% of areas assessed nationally for overall employment performance

Castle Hill - West has an educated workforce with strong professional services representation. Its unemployment rate was 2.7% in June 2025, below Greater Sydney's 4.2%.

Employment growth over the past year was estimated at 2.9%. As of June 2025, 3,117 residents were employed, with a workforce participation rate of 67.6%, compared to Greater Sydney's 60.0%. Leading employment industries are professional & technical (showing strong specialization), health care & social assistance, and education & training. However, transport, postal & warehousing is under-represented at 3.3% compared to Greater Sydney's 5.3%.

Employment opportunities locally may be limited as indicated by Census data. In the year to June 2025, employment levels increased by 2.9%, labour force by 3.1%, causing unemployment to rise by 0.2 percentage points. National employment forecasts from Jobs and Skills Australia (May 2025) project growth of 6.6% over five years and 13.7% over ten years, with varying rates across industries. Applying these projections to Castle Hill - West's employment mix suggests local growth of approximately 7.1% over five years and 14.4% over ten years.

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

As per AreaSearch's latest postcode level ATO data released for financial year 2022, Castle Hill - West's median income among taxpayers is $63,522. The average income in the area is $93,735. Nationally, these figures are exceptionally high compared to Greater Sydney's median of $56,994 and average of $80,856. Based on Wage Price Index growth of 12.61% since financial year 2022, current estimates for Castle Hill - West would be approximately $71,532 (median) and $105,555 (average) as of September 2025. According to the 2021 Census, household incomes in Castle Hill - West rank exceptionally high at the 99th percentile ($3,361 weekly). Income analysis reveals that 39.4% of residents (2,046 people) fall into the $4,000+ bracket, which is higher than the surrounding region where the $1,500 - $2,999 category predominates at 30.9%. A significant 57.0% of residents earn above $3,000 weekly. After housing costs, residents retain 86.7% of their income, reflecting strong purchasing power. The area's SEIFA income ranking places it in the 10th decile.

Castle Hill - West is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

Dwelling structure in Castle Hill - West, as evaluated at the latest Census, comprised 86.4% houses and 13.7% other dwellings. In comparison, Sydney metro had 78.2% houses and 21.8% other dwellings. Home ownership in Castle Hill - West was 35.6%, similar to Sydney metro's level. The remaining dwellings were either mortgaged (49.8%) or rented (14.6%). The median monthly mortgage repayment in the area was $3,000, matching the Sydney metro average. The median weekly rent figure was $692, compared to Sydney metro's $3,000 and $580 respectively. Nationally, Castle Hill - West's mortgage repayments were significantly higher than the Australian average of $1,863, while rents were 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 constitute 90.7% of all households, including 59.3% couples with children, 21.5% couples without children, and 8.8% single parent families. Non-family households account for the remaining 9.3%, with lone person households at 8.9% and group households comprising 0.9%. The median household size is 3.3 people, larger than the Greater Sydney average of 3.0.

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 is notably higher than broader averages. 47.6% of residents aged 15 and above have university qualifications, compared to 30.4% nationally and 32.2% in NSW. Bachelor degrees are the most common 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 and above, with advanced diplomas at 11.9% and certificates at 10.7%.

Educational participation is 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. The area has educational provisions including St Angela's Primary School and St Lucy's, St Angela's Primary School campus, serving a total of 605 students. These schools focus exclusively on primary education, with secondary options available in nearby areas. There is also a specialist school addressing specific learning needs. School places per 100 residents (11.7) are below the regional average (17.4), indicating some students may attend schools in adjacent areas. Note: for schools showing '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 - West has 21 active public transport stops, all of which are bus stops. These stops are served by 62 different routes that together facilitate 2723 weekly passenger trips. The area's transport accessibility is rated excellent with residents, on average, being located 186 meters from the nearest stop.

On a daily basis, there are an average of 389 trips across all routes, which translates to approximately 129 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

Castle Hill - West shows excellent health outcomes with very low prevalence of common health conditions across all age groups. The rate of private health cover is exceptionally high at approximately 68% of the total population (3,542 people), compared to 63.7% in Greater Sydney and a national average of 55.3%. Asthma and arthritis are the most common medical conditions, affecting 5.3 and 4.9% of residents respectively.

A significant majority, 78.7%, report being completely free of medical ailments, compared to 75.9% in Greater Sydney. The area has a lower proportion of seniors aged 65 and over at 17.3% (899 people), compared to 18.9% in Greater Sydney. Health outcomes among seniors are strong and align with the general population's health profile.

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 has high cultural diversity, with 47.0% speaking a language other than English at home and 46.7% born overseas. The dominant religion is Christianity, making up 53.4%. Hinduism is overrepresented at 8.9%, compared to Greater Sydney's 8.6%.

Top ancestry groups are Other (17.1%), Chinese (15.0%), and Australian (13.8%). Sri Lankan, Korean, and Indian ethnicities are notably present: Sri Lankan at 2.0% vs regional 1.0%, Korean at 2.4% vs 2.3%, and Indian at 8.0% vs 7.5%.

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

Castle Hill - West's median age is 41 years, significantly higher than Greater Sydney's average of 37 and Australia's median of 38. The 55-64 age cohort is notably over-represented at 13.8%, while the 25-34 age group is under-represented at 8.7%. Post the 2021 Census, the 75 to 84 age group grew from 3.4% to 5.7%, and the 65 to 74 cohort increased from 9.3% to 10.7%. Conversely, the 5 to 14 age group declined from 14.4% to 12.9%, and the 45 to 54 age group dropped from 16.3% to 15.2%. By 2041, demographic modeling projects significant changes in Castle Hill - West's age profile. The 75 to 84 cohort is projected to grow by 85%, adding 251 residents to reach 547. Residents aged 65 and older will represent all anticipated population growth, while the 0 to 4 and 55 to 64 cohorts are projected to decline in population.