Chester Hill - Sefton

Population growth drivers in Chester Hill - Sefton are strong compared to national averages based on AreaSearch's ranking of recent, and medium to long-term trends

Chester Hill - Sefton's population is approximately 22,047 as of May 2026. This figure reflects a growth of 1,205 people since the 2021 Census, which recorded a population of 20,842. The increase is inferred from ABS estimates and validated new addresses between June 2025 and the Census date. The population density stands at 3,032 persons per square kilometer, placing Chester Hill - Sefton in the upper quartile nationally. Over the past decade, ending May 2026, the area has shown resilient growth with a compound annual growth rate of 1.5%. Overseas migration contributed approximately 64.2% of overall population gains during recent periods.

AreaSearch uses ABS/Geoscience Australia projections for SA2 areas 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 are applied to all areas from 2032 to 2041. By 2041, Chester Hill - Sefton's population is expected to increase by approximately 2,349 persons, reflecting a total growth of 9.6% over the 16-year period.

AreaSearch assessment of residential development activity positions Chester Hill - Sefton among the top 25% of areas assessed nationwide

Chester Hill - Sefton averaged approximately 116 new dwelling approvals annually over the past five financial years, from FY21 to FY25, totaling 583 homes. In FY26 up until now, 108 dwellings have been approved. Each year, an average of two new residents per dwelling has been gained, indicating strong demand which may support property values.

The average expected construction cost value for new homes is $279,000, relatively affordable compared to regional levels. This financial year, $64.1 million in commercial development approvals have been recorded, suggesting significant local business investment. Compared to Greater Sydney, Chester Hill - Sefton exhibits around 75% of the construction activity per person and ranks among the 70th percentile nationally. Recent construction comprises 38.0% detached houses and 62.0% townhouses or apartments, a shift from the current pattern of 72.0% houses, potentially due to decreasing developable land availability and evolving lifestyle preferences. With approximately 202 people per dwelling approval, Chester Hill - Sefton shows characteristics of a low-density area.

According to AreaSearch's latest quarterly estimate, the suburb is expected to grow by 2,108 residents by 2041. At current development rates, new housing supply should comfortably meet demand, providing favorable conditions for buyers and potentially supporting population growth beyond current projections.

Chester Hill - Sefton has strong levels of nearby infrastructure activity, ranking in the top 30% nationally

The performance of an area can significantly be influenced by changes in local infrastructure, major projects, and planning initiatives. AreaSearch has identified a total of 28 projects that are expected to impact the area. Notable projects include Villawood Town Centre Redevelopment (Kinara Place), Chester Square Redevelopment, Condell Park High School Upgrade, and Chester Hill Station Upgrade. The following list provides details on those projects likely to be most relevant.

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.

The labour market performance in Chester Hill - Sefton lags significantly behind most other regions nationally

Chester Hill - Sefton has a skilled workforce with diverse sector representation. The unemployment rate was 11.1% as of December 2025, which is 6.9% higher than Greater Sydney's rate of 4.2%. Workforce participation in the area lags at 52.6%, compared to Greater Sydney's 68.8%.

A significant number of residents work from home, with 32.4% doing so according to Census responses. The dominant employment sectors are health care & social assistance, retail trade, and manufacturing. Manufacturing is particularly specialized in the area, with an employment share 1.8 times the regional level. Conversely, professional & technical services show lower representation at 5.8%, compared to the regional average of 11.5%.

The area appears to offer limited local employment opportunities, as indicated by the count of Census working population versus resident population. In the 12-month period ending in December 2025, employment increased by 3.7% while the labour force grew by 4.2%, causing the unemployment rate to rise by 0.5 percentage points. In contrast, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 project a 6.6% increase in national employment over five years and 13.7% over ten years. Applying these projections to Chester Hill - Sefton's employment mix suggests local employment should increase by 6.1% over five years and 13.0% over ten years, based on simple weighting extrapolation for illustrative purposes.

Income figures position the area below 75% of locations analysed nationally by AreaSearch

Chester Hill - Sefton SA2 had a median taxpayer income of $43,233 and an average of $52,830 in financial year 2023, according to postcode level ATO data aggregated by AreaSearch. This was lower than the national average, with Greater Sydney's median being $60,817 and average income being $83,003. By March 2026, estimates based on Wage Price Index growth of 10.32% suggest median incomes would be approximately $47,695 and averages around $58,282. In the 2021 Census, individual incomes were at the 4th percentile ($517 weekly), while household income was at the 30th percentile. The largest income segment comprised 30.3% earning between $1,500 and $2,999 weekly (6,680 residents). Housing affordability pressures were severe, with only 77.7% of income remaining after housing costs, ranking at the 21st percentile.

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

Chester Hill - Sefton's dwelling structure, as per the latest Census, consisted of 72.5% houses and 27.5% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Sydney metro's figures of 55.9% houses and 44.1% other dwellings. Home ownership in Chester Hill - Sefton was at 29.0%, similar to Sydney metro's level. The remaining dwellings were either mortgaged (31.2%) or rented (39.8%). The median monthly mortgage repayment in the area was $2,167, below Sydney metro's average of $2,427. The median weekly rent figure was $400, compared to Sydney metro's $470. Nationally, Chester Hill - Sefton's mortgage repayments were higher than the Australian average of $1,863, while rents exceeded the national figure of $375.

Chester Hill - Sefton has a typical household mix, with a higher-than-average median household size

Family households account for 76.4% of all households, including 42.3% composed of couples with children, 15.5% consisting of couples without children, and 16.8% being single parent families. Non-family households constitute the remaining 23.6%, with lone person households comprising 21.1% and group households making up 2.5%. The median household size is 3.2 people, which is larger than the Greater Sydney average of 2.7.

Educational outcomes in Chester Hill - Sefton fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment

The area's university qualification rate is 22.4%, significantly lower than the SA4 region average of 39.1%. Bachelor degrees are most common at 16.4%, followed by postgraduate qualifications (4.8%) and graduate diplomas (1.2%). Vocational credentials are held by 28.3% of residents aged 15 and above, with advanced diplomas at 10.6% and certificates at 17.7%. Educational participation is high, with 38.3% of residents currently enrolled in formal education.

This includes 12.4% in primary education, 11.6% in secondary education, and 6.9% pursuing tertiary education.

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

Chester Hill - Sefton has 162 active public transport stops offering a mix of train and bus services. These stops are served by 32 routes, providing 3,037 weekly passenger trips in total. Residents have excellent accessibility to transport, with an average distance of 127 meters to the nearest stop. Most residents commute outward from this primarily residential area. Cars remain the dominant mode of transport at 83%, while trains account for 10%. The average vehicle ownership per dwelling is 1.4, higher than the regional average.

According to the 2021 Census, 32.4% of residents work from home, which may be partly due to COVID-19 conditions. Service frequency averages 433 trips per day across all routes, equating to approximately 18 weekly trips per individual stop. The provided map illustrates the 100 nearest stops to the location's centrepoint.

Chester Hill - Sefton's residents boast exceedingly positive health performance metrics with younger cohorts in particular seeing very low prevalence of common health conditions

Chester Hill - Sefton shows excellent health outcomes based on AreaSearch's assessment. Mortality rates and chronic condition prevalence are low, particularly in younger cohorts. Private health cover is low at around 46% (approximately 10,207 people), compared to Greater Sydney's 59.9%.

Nationally, the average is 55.7%. The most prevalent conditions are arthritis (6.1%) and diabetes (5.8%), with 77.1% of residents reporting no medical ailments. This compares to 74.6% in Greater Sydney. Working-age residents have low chronic condition prevalence. There are 3,207 people aged 65 and over (14.6%). While health outcomes among seniors are above average, they rank lower nationally than the broader population.

Chester Hill - Sefton is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Chester Hill-Sefton is one of Australia's most culturally diverse areas, with 49.2% of its population born overseas and 70.3% speaking a language other than English at home. The predominant religion in Chester Hill-Sefton is Islam, comprising 38.2% of the population, significantly higher than Greater Sydney's average of 6.8%. In terms of ancestry, the top three represented groups are Other (22.1%), Lebanese (16.7%), and Chinese (12.8%), all substantially higher than their respective regional averages of 16.0%, 2.6%, and 4.3%.

Notably, Vietnamese (11.6%) and Samoan (0.7%) are overrepresented in Chester Hill-Sefton compared to the regional averages of 1.8% and 0.5%, respectively.

Chester Hill - Sefton hosts a young demographic, positioning it in the bottom quartile nationwide

Chester Hill - Sefton's median age is 34 years, which is lower than Greater Sydney's average of 37 years and Australia's average of 38 years. Compared to Greater Sydney, Chester Hill - Sefton has a higher proportion of residents aged 15-24 (16.1%) but fewer residents aged 35-44 (12.8%). Between the 2021 Census and now, the proportion of residents aged 15-24 has increased from 14.7% to 16.1%, while the proportion of residents aged 5-14 has decreased from 14.9% to 13.9%. By 2041, population forecasts indicate significant demographic changes for Chester Hill - Sefton. The 75-84 age group is projected to grow by 77%, adding 685 residents to reach a total of 1,578. Residents aged 65 and above will drive 57% of population growth, reflecting demographic aging trends. Conversely, population declines are projected for the 0-4 and 5-14 age groups.