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, as per AreaSearch's analysis, is 5192 as of August 2025. This figure represents an increase of 9 people, a 0.2% rise from the 2021 Census count of 5183 residents. The growth was inferred from ABS's estimated resident population of 5192 in June 2024 and the addition of 3 validated new addresses since the Census date. This results in a population density ratio of 3165 persons per square kilometer, placing Castle Hill - West in the upper quartile relative to national locations assessed by AreaSearch. Overseas migration accounted for approximately 77.1% of overall population gains during recent periods.

AreaSearch's projections are based on ABS/Geoscience Australia data released in 2024 with a base year of 2022 for each SA2 area. For areas not covered by this data, NSW State Government's SA2 level projections released in 2022 with a base year of 2021 are used. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. According to these projections, Castle Hill - West's population is expected to decline overall by 113 persons by 2041. However, specific age cohorts are anticipated to grow, notably the 75 to 84 age group, which is projected to expand by 287 people over this period.

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 approximately two new dwelling approvals annually. Development approval data is sourced from the Australian Bureau of Statistics on a financial year basis, totalling ten approvals over the past five financial years (from FY20 to FY25), with no approvals recorded thus far in FY26. The area's population has declined recently, suggesting that new supply has likely kept pace with demand, providing good options for buyers. New dwellings are developed at an average cost of $876,000, indicating a focus on the premium market with high-end developments.

Commercial approvals this financial year totalled $162,000, implying minimal commercial development activity compared to Greater Sydney. Castle Hill - West has significantly less overall development activity than Greater Sydney and nationally, reflecting market maturity and possible development constraints. Recent development has been exclusively detached houses, maintaining the area's suburban identity with a concentration of family homes suited for buyers seeking space. The location has approximately 1168 people per dwelling approval, indicating an established market. Given stable or declining population forecasts, Castle Hill - West may experience less housing pressure in the future, creating favourable conditions for buyers.

Given stable or declining population forecasts, Castle Hill - West may experience less housing pressure, creating favourable conditions for buyers.

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

Changes in local infrastructure significantly affect an area's performance. AreaSearch has identified 11 projects that could impact this region. Notable ones include the Castle Hill North Precinct Plan, Hills Showground Station Precinct, Castle Towers Shopping Centre Expansion, and Dawes Avenue Residential Development. The following list details those most likely to be relevant.

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

Castle Hill - West ranks among the top 25% of areas assessed nationally for overall employment performance

Castle Hill - West, as of June 2025, has an unemployment rate of 2.7%, with estimated employment growth of 2.9% over the past year. It has a highly educated workforce, with professional services showing strong representation and workforce participation at 67.6%, higher than Greater Sydney's 60.0%.

Leading industries include professional & technical (1.3 times regional level), health care & social assistance, and education & training. Transport, postal & warehousing is under-represented, with only 3.3% of the workforce compared to Greater Sydney's 5.3%. Employment levels increased by 2.9% and labour force by 3.1% in the year to June 2025, raising unemployment rate by 0.2 percentage points. In comparison, Greater Sydney recorded employment growth of 2.6%, with unemployment rising 0.3 percentage points.

State-level data to Sep-25 shows NSW employment contracted by 0.41% (losing 19,270 jobs), with state unemployment rate at 4.3%. National unemployment rate is 4.5%, lagging national employment growth of 0.26%. Jobs and Skills Australia's national employment forecasts from May 2025 project national employment expansion by 6.6% over five years and 13.7% over ten years, but growth rates differ significantly between industry sectors. 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

AreaSearch's latest postcode level ATO data for financial year ending June 2022 shows median income in Castle Hill - West at $63,522 and average income at $93,735. In comparison, Greater Sydney had a median income of $56,994 and an average income of $80,856 during the same period. Based on Wage Price Index growth of 10.6% between financial years 2021-22 and 2022-23, estimated incomes for Castle Hill - West as of March 2025 would be approximately $70,255 (median) and $103,671 (average). The 2021 Census data ranks household incomes in Castle Hill - West at the 99th percentile with weekly earnings of $3,361. Income analysis reveals that 39.4% of individuals earn above $4,000 per week, which is higher than the regional pattern where the dominant earning band is $1,500-$2,999 at 30.9%. This indicates strong economic capacity with 57.0% of residents earning above $3,000 per week. After accounting for housing costs, residents retain 86.7% of their income, reflecting robust 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, aligning with the Sydney metro average. The median weekly rent figure was $692, compared to Sydney metro's $580. 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 account for 90.7% of all households, including 59.3% who are couples with children, 21.5% who are couples without children, and 8.8% who are single parent families. Non-family households constitute the remaining 9.3%, with lone person households at 8.9% and group households comprising 0.9% of the total. The median household size is 3.3 people, which is 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 significantly surpasses broader benchmarks: 47.6% of residents aged 15+ hold university qualifications, compared to Australia's 30.4% and NSW's 32.2%. 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+, 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: 10.1% in secondary, 9.6% in primary, and 7.2% in tertiary education.

St Angela's Primary School serves Castle Hill-West, enrolling 605 students as of a recent date. The area demonstrates significant socio-educational advantages and academic achievement (ICSEA: 1135). There is one school focusing exclusively on primary education, with secondary options available in surrounding areas. School places per 100 residents stand at 11.7, below the regional average of 17.6, indicating some students may attend schools in adjacent areas.

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

Castle Hill - West has 21 operational public transport stops. These are served by a total of 62 bus routes, facilitating 2,723 weekly passenger trips. Residents enjoy excellent transport accessibility, with an average distance of 186 meters to the nearest stop.

Daily service frequency averages 389 trips across all routes, translating 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 conditions across all ages. Private health cover is high at approximately 68%, compared to 63.7% in Greater Sydney and a national average of 55.3%. The most prevalent conditions are asthma (5.3%) and arthritis (4.9%), while 78.7% report being completely clear of ailments, higher than Greater Sydney's 75.9%.

The area has 17.3% residents aged 65 and over (899 people), lower than Greater Sydney's 18.9%. Seniors' health outcomes align with the general population's 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 a high level of cultural diversity, with 47.0% of its population speaking a language other than English at home and 46.7% born overseas. The predominant religion in Castle Hill-West is Christianity, accounting for 53.4% of the population. Hinduism is notably overrepresented, comprising 8.9% compared to the regional average of 8.6%.

The top three ancestry groups are Other (17.1%), Chinese (15.0%), and Australian (13.8%). There are notable divergences in the representation of certain ethnic groups: Sri Lankan is overrepresented at 2.0% versus the regional average of 1.0%, Korean at 2.4% compared to 2.3%, and Indian at 8.0% versus 7.5%.

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

Castle Hill - West's median age is 41 years, which is notably higher than Greater Sydney's average of 37 years and Australia's median of 38 years. The 2021 Census revealed that the 55-64 age group constituted 13.8% of Castle Hill - West's population, significantly higher than the Greater Sydney average. Conversely, the 25-34 age group made up only 8.7%, lower than the Greater Sydney average. Post-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%. However, the 5 to 14 age group decreased from 14.4% to 12.9%, and the 45 to 54 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. This growth is part of a broader trend of demographic aging, with residents aged 65 and older accounting for 100% of the anticipated population increase. Conversely, population declines are projected for the 0 to 4 and 55 to 64 age groups.