Castle Hill - East

Castle Hill - East is positioned among the lower quartile of areas assessed nationally for population growth based on AreaSearch's assessment of recent, and medium term trends

As of November 2025, Castle Hill - East's population is approximately 5,382, a decrease of 288 people (5.1%) since the 2021 Census which reported a population of 5,670. This change is inferred from the estimated resident population of 5,384 as of June 2024 and address validation since the Census date. The population density is around 2,600 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Overseas migration was the primary driver of population growth during recent periods. AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022, and NSW State Government's SA2 level projections for areas not covered by this data, released in 2022 with a base year of 2021.

Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. By 2041, the population is expected to increase by approximately 510 persons, reflecting a gain of 9.5% over the 17-year period based on the latest annual ERP population numbers.

The level of residential development activity in Castle Hill - East is very low in comparison to the average area assessed nationally by AreaSearch

Castle Hill - East has seen approximately three residential properties granted approval annually. Over the past five financial years, from FY21 to FY25, 16 homes were approved, with none yet approved in FY26.

The population has declined in recent years, but housing supply has remained adequate relative to demand, resulting in a balanced market with good buyer choice. New properties are constructed at an average cost of $186,000, below regional norms, offering more affordable housing options. Compared to Greater Sydney, Castle Hill - East has significantly less development activity, 94.0% below the regional average per person, which typically strengthens demand and prices for existing properties. This is also below the national average, indicating the area's maturity and possible planning constraints. Recent development has been exclusively detached dwellings, maintaining the area's suburban character with a focus on family homes.

At around 4040 people per approval, Castle Hill - East shows a mature, established area. Population forecasts indicate an increase of 512 residents by 2041, potentially leading to housing supply struggles at current development rates, which could heighten buyer competition and support price increases.

Castle Hill - East has moderate levels of nearby infrastructure activity, ranking in the 43rdth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch identified four projects likely affecting this region: New Line Road Upgrade, Hills Shire Council Delivery Program and Operational Plan 2024-2025 Infrastructure Works, Sydney Metro Northwest, and Cherrybrook Precinct Rezoning Proposal.

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

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AreaSearch analysis places Castle Hill - East well above average for employment performance across multiple indicators

Castle Hill - East has a highly educated workforce with notable representation in the technology sector. Its unemployment rate was 2.2% as of June 2025, lower than Greater Sydney's rate of 4.2%.

Employment growth over the past year was estimated at 2.3%. As of June 2025, 2,523 residents were employed, with an unemployment rate of 2.0%, but workforce participation lagged significantly at 46.1% compared to Greater Sydney's 60.0%. Key industries for employment among residents were professional & technical (at 1.3 times the regional average), health care & social assistance, and education & training. Transport, postal & warehousing had limited presence with 2.7% employment compared to 5.3% regionally.

Employment opportunities appeared limited locally based on Census working population vs resident population data. Over the 12 months to June 2025, employment increased by 2.3% while labour force increased by 3.1%, causing the unemployment rate to rise by 0.7 percentage points. In contrast, Greater Sydney experienced employment growth of 2.6% and labour force growth of 2.9%, with a 0.3 percentage point rise in unemployment rate. State-level data to Nov-25 showed NSW employment contracted by 0.03% (losing 2,260 jobs), with the state unemployment rate at 3.9%. National employment forecasts from Jobs and Skills Australia projected national employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Castle Hill - East's employment mix suggested local employment should increase by 7.2% over five years and 14.5% over ten years, though these are simple extrapolations for illustrative purposes and do not account for localised population projections.

The area exhibits notably strong income performance, ranking higher than 70% of areas assessed nationally through AreaSearch analysis

AreaSearch's latest postcode level ATO data for financial year 2022 shows income in Castle Hill - East SA2 is extremely high nationally. The median income is $59,148 and the average income stands at $87,281. This contrasts with Greater Sydney's figures of a median income of $56,994 and an average income of $80,856. Based on Wage Price Index growth of 12.61% since financial year 2022, current estimates would be approximately $66,607 (median) and $98,287 (average) as of September 2025. Census 2021 income data shows household income ranks at the 66th percentile ($2,014 weekly), while personal income sits at the 31st percentile. Income analysis reveals the $4000+ earnings band captures 27.3% of the community (1,469 individuals). Economic strength emerges through 38.0% of households achieving high weekly earnings exceeding $3,000, supporting elevated consumer spending. High housing costs consume 19.0% of income, though strong earnings still place disposable income at the 62nd percentile and the area's SEIFA income ranking places it in the 8th decile.

Castle Hill - East displays a diverse mix of dwelling types, with above-average rates of outright home ownership

As per the latest Census evaluation, dwelling structures in Castle Hill - East consisted of 68.1% houses and 31.9% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Sydney metro's 78.2% houses and 21.8% other dwellings. Home ownership in Castle Hill - East was recorded at 40.9%, with the remaining dwellings either mortgaged (40.5%) or rented (18.6%). The median monthly mortgage repayment in the area was $3,000, aligning with Sydney metro's average, while the median weekly rent figure stood at $547 compared to Sydney metro's $3,000 and $580 respectively. Nationally, Castle Hill - East's mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially above the national figure of $375.

Castle Hill - East has a typical household mix, with a lower-than-average median household size

Family households constitute 70.7% of all households, including 42.9% couples with children, 22.1% couples without children, and 5.4% single parent families. Non-family households account for the remaining 29.3%, with lone person households at 28.7% and group households comprising 0.7%. The median household size is 2.7 people, which is smaller than the Greater Sydney average of 3.0.

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

Educational attainment in Castle Hill - East is notably high, with 48.6% of residents aged 15 years and over holding university qualifications as of the latest data point, compared to 30.4% nationally and 32.2% statewide in New South Wales (NSW). Bachelor degrees are most prevalent at 30.3%, followed by postgraduate qualifications at 15.3% and graduate diplomas at 3.0%. Vocational pathways account for 22.9% of qualifications among those aged 15 years and over, with advanced diplomas at 11.6% and certificates at 11.3%. Educational participation is high, with 31.1% of residents currently enrolled in formal education as of the latest figures.

This includes 10.7% in secondary education, 9.6% in primary education, and 6.9% pursuing tertiary education.

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

Transport analysis shows 50 active stops operating in Castle Hill - East, all bus routes. These stops are served by 102 individual routes, offering 3481 weekly passenger trips combined. Transport accessibility is excellent, with residents typically located 177 meters from the nearest stop.

Service frequency averages 497 trips per day across all routes, equating to approximately 69 weekly trips per stop.

Health performance in Castle Hill - East is lower than average with common health conditions somewhat prevalent across both younger and older age cohorts

Castle Hill East faces significant health challenges, with common health conditions prevalent across both younger and older age cohorts. Approximately 64% of its total population (3,433 people) have private health cover, which is higher than the national average of 55.3%.

The most common medical conditions in the area are arthritis and heart disease, affecting 9.8 and 6.0% of residents respectively. However, 66.4% of residents declared themselves completely clear of medical ailments, compared to 75.9% across Greater Sydney. The area has a higher proportion of seniors, with 35.7% (1,920 people) aged 65 and over, compared to the 18.9% in Greater Sydney. Health outcomes among seniors present some challenges, broadly in line with the general population's health profile.

Castle Hill - East 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-East has a high level of cultural diversity, with 41.9% of its population speaking a language other than English at home and 45.9% born overseas. Christianity is the predominant religion in Castle Hill-East, making up 54.9% of the population. Hinduism is overrepresented compared to Greater Sydney, comprising 8.0% of Castle Hill-East's population versus 8.6%.

The top three ancestry groups are English at 20.5%, Chinese at 19.2%, and Australian at 16.8%. Korean (1.8%) and Sri Lankan (1.0%) are notably overrepresented compared to regional averages, while Indian is slightly underrepresented at 6.9% versus 7.5%.

Castle Hill - East ranks among the oldest 10% of areas nationwide

Castle Hill - East's median age is 53 years, significantly higher than Greater Sydney's average of 37 years and the national average of 38 years. The age profile shows that those aged 85+ are particularly prominent at 12.9%, while the 25-34 age group is comparatively smaller at 5.2%. This concentration of those aged 85+ is well above the national average of 2.2%. Between 2021 and present, the population aged 15 to 24 has grown from 10.5% to 13.6%, while the 65 to 74 age group increased from 9.1% to 10.2%. Conversely, the 85+ age group has declined from 14.8% to 12.9%, and the 5 to 14 age group dropped from 11.5% to 10.3%. By 2041, Castle Hill - East is expected to experience notable shifts in its age composition. The demographic shift will be led by the 85+ age group, which is projected to grow by 63%, reaching 1,133 people from 694. The aging population trend is clear, with those aged 65 and above comprising 98% of projected growth. Conversely, population declines are projected for the 25-34 age group and the 0 to 4 age cohort.