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 23,233 as of February 2026. This figure represents an increase of 2,391 people, marking a 11.5% rise since the 2021 Census which reported a population of 20,842. The growth is inferred from ABS's estimated resident population of 21,695 in June 2024 and an additional 138 validated new addresses since the Census date. This results in a population density ratio of 3,195 persons per square kilometer, placing Chester Hill - Sefton in the upper quartile relative to national locations assessed by AreaSearch. The area's growth rate of 11.5% since the 2021 census exceeded both the state average (7.8%) and Greater Sydney's growth, making it a regional growth leader. Overseas migration contributed approximately 63.2% of overall population gains during recent periods in Chester Hill - Sefton.

AreaSearch uses 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 the years 2032 to 2041. Looking ahead, Chester Hill - Sefton is expected to experience population growth just below the national median by 2041. Based on the latest annual ERP population numbers, the area is projected to increase by 2,465 persons over these years, reflecting a total increase of approximately 4.0%.

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, with a total of 583 homes approved during this period. In FY26 up to August, 88 dwellings have been approved. This has resulted in an average of two new residents per year for each dwelling built over these five years, indicating strong demand that supports property values.

The average construction cost value of new homes is $279,000, which is lower than regional levels, offering more affordable housing choices. In FY26 up to August, commercial development approvals totaled $64.1 million, suggesting significant local business investment. Compared to Greater Sydney, Chester Hill - Sefton demonstrates around 75% of the construction activity per capita and ranks among the 70th percentile nationally in terms of areas assessed. Recent construction comprises 38.0% detached houses and 62.0% townhouses or apartments, marking a shift from the current housing pattern of 72.0% houses. This change may be due to diminishing developable land availability and evolving lifestyle preferences.

With approximately 202 people per dwelling approval, Chester Hill - Sefton exhibits characteristics of a growth area. According to AreaSearch's latest quarterly estimate, the area is projected to grow by 926 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 very high levels of nearby infrastructure activity, ranking in the top 10% 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 details those projects likely to be most relevant.

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

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Employment conditions in Chester Hill - Sefton face significant challenges, ranking among the bottom 10% of areas assessed nationally

Chester Hill - Sefton has a skilled workforce with diverse sector representation. The unemployment rate was 11.4% in the past year, with an estimated employment growth of 1.0%. As of September 2025, 8,065 residents are employed, but the unemployment rate is higher than Greater Sydney's at 7.2%, indicating room for improvement.

Workforce participation lags behind Greater Sydney at 52.7% compared to 70.0%. Census responses show that 32.4% of residents work from home. Dominant employment sectors include health care & social assistance, retail trade, and manufacturing. The area specializes in manufacturing with an employment share of 1.8 times the regional level, while professional & technical services have lower representation at 5.8%.

Limited local employment opportunities are suggested by the Census working population count compared to resident population. Between September 2024 and September 2025, employment increased by 1.0% alongside labour force growth of 3.3%, causing unemployment to rise by 2.0 percentage points. In contrast, Greater Sydney experienced employment growth of 2.1% with a smaller rise in unemployment. Jobs and Skills Australia's national employment forecasts from May-25 project national employment growth of 6.6% 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, though this is a simple weighting extrapolation for illustrative purposes and does not account for localised population projections.

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

The median taxpayer income in Chester Hill - Sefton SA2 is $43,233 and the average is $52,830 based on postcode level ATO data aggregated by AreaSearch for financial year 2023. This is lower than national averages, with Greater Sydney's median being $60,817 and average income at $83,003. By September 2025, estimated incomes are approximately $47,063 (median) and $57,511 (average), accounting for an 8.86% increase since financial year 2023 as per the Wage Price Index growth. According to the 2021 Census figures, individual incomes rank at the 4th percentile with $517 weekly earnings, while household income ranks at the 30th percentile. The largest income segment comprises 30.3% earning between $1,500 and $2,999 weekly, with 7,039 residents falling into this category. This aligns with regional trends where this cohort represents 30.9%. Housing affordability pressures are severe in the area, 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

The dwelling structure in Chester Hill-Sefton, as per the latest Census, consisted of 72.5% houses and 27.5% other dwellings (semi-detached, apartments, 'other' dwellings). In contrast, Sydney metro had 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, lower than Sydney metro's average of $2,427. The median weekly rent figure stood at $400, compared to Sydney metro's $470. Nationally, Chester Hill-Sefton's mortgage repayments were higher at $2,167 against the Australian average of $1,863, while rents were also higher at $400 compared to 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% couples with children, 15.5% couples without children, and 16.8% single parent families. Non-family households constitute the remaining 23.6%, with lone person households at 21.1% and group households comprising 2.5%. The median household size is 3.2 people, 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 prevalent, with 28.3% of residents aged 15+ holding such qualifications - 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 individual routes, collectively facilitating 3,037 weekly passenger trips. The area's transport accessibility is rated excellent, with residents typically located 127 meters from the nearest stop. As primarily residential, most residents commute outward. Car remains the dominant mode at 83%, while train accounts for 10%. Vehicle ownership averages 1.4 per dwelling, above the regional average.

According to the 2021 Census, a high 32.4% of residents work from home, which may reflect COVID-19 conditions. Service frequency averages 433 trips per day across all routes, equating to approximately 18 weekly trips per stop. The accompanying map displays 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

AreaSearch's assessment shows Chester Hill - Sefton has excellent health outcomes. Specifically, younger cohorts have a very low prevalence of common health conditions. The private health cover rate is extremely low at approximately 46%, covering around 10,756 people, compared to Greater Sydney's 59.9% and the national average of 55.7%.

The most prevalent medical conditions are arthritis (6.1%) and diabetes (5.8%), with 77.1% of residents reporting no medical ailments, higher than Greater Sydney's 74.6%. Working-age residents have low chronic condition prevalence. There are 3,417 residents aged 65 and over, making up 14.7% of the population. While health outcomes among seniors rank lower nationally compared to the broader population, they remain above average for the area.

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 among the most culturally diverse areas in Australia, 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, compared to 6.8% across Greater Sydney. Regarding ancestry, the top three groups are 'Other' (22.1%), Lebanese (16.7%), and Chinese (12.8%).

These percentages are higher than the regional averages of 16.0%, 2.6%, and 3.5%, respectively. Notably, Vietnamese (11.6%) is overrepresented compared to the regional average of 1.8%. Samoan and Korean populations in Chester Hill-Sefton are also notable at 0.7% and 0.8%, respectively, differing from their regional averages of 0.5% and 1.1%.

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 (16.5%) but fewer residents aged 25-34 (13.2%). Between the 2021 Census and the present, the proportion of residents aged 15-24 has increased from 14.7% to 16.5%, while the proportion of residents aged 25-34 has decreased from 14.1% to 13.2%. By 2041, Chester Hill - Sefton's population is forecasted to see significant demographic changes. The 75-84 age group is projected to grow by 68%, adding 637 residents to reach a total of 1,578. Residents aged 65 and above will drive 72% of the population growth, indicating a trend towards an aging population. Conversely, population declines are projected for the 25-34 and 15-24 age groups.