Castle Hill - East
Statistical Area - sa2

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

Castle Hill - East's population was approximately 5,383 as of August 2025. This figure indicates a decline of 287 people, representing a decrease of 5.1%, since the 2021 Census which recorded a population of 5,670 people. The change is inferred from the estimated resident population of 5,385 from the ABS as of June 2024 and address validation since the Census date. This results in a population density ratio of approximately 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 in the area during recent periods.

AreaSearch employs 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 where applicable, released in 2022 with a base year of 2021. By 2041, based on the latest population numbers, Castle Hill - East is expected to increase by approximately 510 persons, representing a gain of around 9.5% over the 17-year period.

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 9 residential properties granted approval annually. Development approval data from the ABS covers financial years, with 46 homes approved between FY20-FY25, and none yet in FY26. Despite population decline, development activity has been adequate relative to demand, maintaining a balanced market with good buyer choice.

The average construction cost of new dwellings is $186,000, below regional levels. Compared to Greater Sydney, Castle Hill - East has significantly less development activity, at 94.0% below the regional average per person. Recent development has consisted entirely of detached houses, sustaining the area's suburban identity and reflecting strong demand for family homes, with developers constructing more than implied by existing patterns (68.0% at Census). With around 4040 people per dwelling approval, Castle Hill - East indicates a highly mature market. Population forecasts project an increase of 511 residents by 2041, maintaining construction pace with expected growth but potentially intensifying competition among buyers as population rises.

Population forecasts indicate Castle Hill - East will gain 511 residents through to 2041. Construction is maintaining a reasonable pace with projected growth, although buyers could encounter growing competition as population increases.

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

The performance of an area can significantly influenced by changes in local infrastructure projects and planning initiatives. AreaSearch has identified three such projects expected to impact the area: Hills Shire Council Infrastructure Program 2024-2025, New Line Road Upgrade, Cherrybrook Precinct Rezoning Proposal, Skyview Apartments Castle Hill.

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

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

Castle Hill - East has an educated workforce with high representation in the technology sector. Its unemployment rate is 2.2%, lower than Greater Sydney's 4.2%.

Employment growth over the past year was estimated at 2.3%. As of June 2025, 2,523 residents are employed while the unemployment rate is 2.0% below Greater Sydney's rate. Workforce participation in Castle Hill - East lags behind Greater Sydney (46.1% vs 60.0%). Leading employment industries include professional & technical, health care & social assistance, and education & training.

The area specializes in professional & technical jobs with an employment share 1.3 times the regional level. However, transport, postal & warehousing is under-represented at 2.7% compared to Greater Sydney's 5.3%. Over the year to June 2025, employment increased by 2.3% while labour force grew by 3.1%, raising unemployment rate by 0.7 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 a state unemployment rate of 4.3%, favourably compared to the national rate of 4.5%. National employment forecasts from May 2025 project growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Castle Hill - East's employment mix suggests local growth of approximately 7.2% over five years and 14.5% over ten years.

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 that Castle Hill - East has a high national median income of $59,148 and an average income of $87,281. This contrasts with Greater Sydney's median income of $56,994 and average income of $80,856. Based on Wage Price Index growth of 10.6% since financial year 2022, current estimates for Castle Hill - East are approximately $65,418 (median) and $96,533 (average) as of March 2025. According to the 2021 Census, household income ranks at the 66th percentile ($2,014 weekly), while personal income is at the 31st percentile. Income analysis reveals that 27.3% of Castle Hill - East's community earns $4,000 or more (1,469 individuals), differing from the regional pattern where earnings between $1,500 and $2,999 dominate at 30.9%. The substantial proportion of high earners (38.0% above $3,000/week) indicates strong economic capacity in Castle Hill - East. High housing costs consume 19.0% of income, but strong earnings place disposable income at the 62nd percentile. 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

The dwelling structure in Castle Hill - East, as per the latest Census, consisted of 68.1% houses and 31.9% other dwellings (semi-detached, apartments, 'other' dwellings). In contrast, Sydney metro had 78.2% houses and 21.8% other dwellings. Home ownership in Castle Hill - East was at 40.9%, with the rest being mortgaged (40.5%) or rented (18.6%). The median monthly mortgage repayment was $3,000, aligning with Sydney metro's average. The median weekly rent was recorded as $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, while 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 account for 70.7 percent of all households, including 42.9 percent couples with children, 22.1 percent couples without children, and 5.4 percent single parent families. Non-family households constitute the remaining 29.3 percent, with lone person households at 28.7 percent and group households comprising 0.7 percent of the total. 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

In Castle Hill - East, educational attainment is notably higher than national averages. Among residents aged 15+, 48.6% hold university qualifications compared to Australia's 30.4% and NSW's 32.2%. Bachelor degrees are most prevalent at 30.3%, followed by postgraduate qualifications (15.3%) and graduate diplomas (3.0%). Vocational pathways account for 22.9% of qualifications, with advanced diplomas at 11.6% and certificates at 11.3%.

Educational participation is high, with 31.1% currently enrolled in formal education. This includes 10.7% in secondary education, 9.6% in primary education, and 6.9% pursuing tertiary education. The area's educational provision consists of Oakhill Drive Public School and Oakhill College, serving a total of 2,971 students. Castle Hill - East has significant socio-educational advantages and academic achievement (ICSEA: 1134). It functions as an education hub with 55.2 school places per 100 residents, significantly above the regional average of 17.6, attracting students from surrounding communities.

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

Castle Hill - East has 50 active public transport stops, all of which are bus stops. These stops are served by a total of 102 different routes that facilitate 3,481 weekly passenger trips combined. The area's transport accessibility is rated as excellent, with residents usually located just 177 meters away from the nearest transport stop on average.

Across all routes, service frequency stands at an average of 497 trips per day, translating to roughly 69 weekly trips per individual 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. Common health conditions are prevalent across both younger and older age cohorts.

The rate of private health cover is exceptionally high at approximately 64% of the total population (3,434 people), compared to the national average of 55.3%. The most common medical conditions in the area are arthritis and heart disease, impacting 9.8 and 6.0% of residents respectively. Sixty-six point four percent of residents declared themselves completely clear of medical ailments, compared to 75.9% across Greater Sydney. As of June 2021, 35.7% of residents are aged 65 and over (1,921 people), which is higher than 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 ranks high in cultural diversity, with 41.9% of its residents speaking a language other than English at home and 45.9% born overseas. Christianity is the predominant religion in Castle Hill-East, comprising 54.9%. Hinduism, at 8.0%, is slightly overrepresented compared to Greater Sydney's 8.6%.

The top three ancestry groups are English (20.5%), Chinese (19.2%), and Australian (16.8%). Korean (1.8%) and Sri Lankan (1.0%) groups show notable representation, while Indian (6.9%) is slightly underrepresented compared to regional figures.

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

At 53 years, Castle Hill - East's median age is significantly higher than Greater Sydney's average of 37 years and also exceeds the national average of 38 years. The age profile indicates that those aged 85 and above are particularly prominent at 12.9%, while individuals aged 25 to 34 make up a smaller proportion at 5.2% compared to Greater Sydney's population. This concentration of those aged 85 and above is significantly higher than the national average of 2.2%. Between 2021 and present, the age group of 15 to 24 has increased from 10.5% to 13.6%, while the 65 to 74 cohort has risen from 9.1% to 10.2%. Conversely, the proportion of those aged 85 and above has decreased from 14.8% to 12.9%, and the age group of 5 to 14 has fallen from 11.5% to 10.3%. By the year 2041, Castle Hill - East is expected to experience notable shifts in its age composition. Leading this demographic shift, the number of individuals aged 85 and above is projected to grow by 63%, reaching 1,133 from 694. This aging population trend is evident with those aged 65 and above accounting for 98% of the projected growth. Conversely, population declines are projected for the age groups of 25 to 34 and 0 to 4 years old.