Sefton

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

Based on ABS population updates and AreaSearch validations, Sefton's estimated population as of Feb 2026 is around 6,911. This reflects a growth of 611 people since the 2021 Census, which reported a population of 6,300. The increase was inferred from an AreaSearch estimate of 6,442 residents following examination of ABS ERP data released in June 2024 and additional validation of 40 new addresses since the Census date. This results in a population density ratio of 3,818 persons per square kilometer, placing Sefton in the upper quartile relative to national locations assessed by AreaSearch. The suburb's growth rate of 9.7% since the 2021 census exceeded both state (7.8%) and Greater Sydney averages, marking it as a growth leader. Overseas migration contributed approximately 63.0% of overall population gains during recent periods in Sefton.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area released in 2024 with 2022 as the base year. For areas not covered by this data, AreaSearch utilises NSW State Government's SA2 level projections released in 2022 with 2021 as the base year. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. Considering projected demographic shifts, Sefton is expected to have a population increase just below the median of statistical areas across the nation by 2041. Based on aggregated SA2-level projections, the suburb is expected to expand by 737 persons over this period, reflecting an increase of approximately 5.3% in total population.

Residential development activity is slightly higher than average within Sefton when compared nationally

Based on AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, Sefton has averaged around 28 new dwelling approvals each year. Over the past five financial years, between FY-21 and FY-25, an estimated 144 homes were approved, with a further 23 approved so far in FY-26. On average, for each dwelling built over these five years, there has been an increase of 2.5 new residents per year, indicating healthy demand which supports property values.

New homes are being constructed at an average value of $400,000. This financial year alone, $16.3 million in commercial development approvals have been recorded, reflecting steady commercial investment activity. Compared to Greater Sydney, Sefton shows approximately 65% of the construction activity per person, placing it among the 56th percentile of areas assessed nationally. Current new development consists of 38.0% detached houses and 62.0% attached dwellings, a shift from the current housing mix which is predominantly houses at 70.0%. This focus on higher-density living creates more affordable entry points and suits downsizers, investors, and first-home buyers.

The location has approximately 276 people per dwelling approval, indicating room for growth. Looking ahead, Sefton is expected to grow by 368 residents through to 2041, according to the latest AreaSearch quarterly estimate. At current development rates, new housing supply should comfortably meet demand, providing good conditions for buyers and potentially supporting growth beyond current population projections.

Sefton has very high levels of nearby infrastructure activity, ranking in the top 10% nationally

Two projects identified by AreaSearch are likely to impact the area significantly: 101-103 Hector Street Sefton (Chester Square Redevelopment) and Abel Tasman Village Seniors Housing.

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Employment drivers in Sefton are experiencing difficulties, placing it among the bottom 20% of areas assessed across Australia

Sefton's workforce comprises skilled individuals with diverse sector representation. The unemployment rate in Sefton was 9.6% as of an unspecified past year, with estimated employment growth of 1.5%. As of September 2025, the unemployment rate is 5.4%, higher than Greater Sydney's rate of 4.2%.

Workforce participation in Sefton lags at 56.9%, compared to Greater Sydney's 70.0%. A significant proportion, 33.3%, of residents work from home, potentially influenced by Covid-19 lockdowns. Key industries employing residents are health care & social assistance, transport, postal & warehousing, and retail trade. Sefton specializes in transport, postal & warehousing, with an employment share twice the regional level.

Conversely, professional & technical services employ only 7.1% of local workers, below Greater Sydney's 11.5%. The area appears to offer limited local employment opportunities, indicated by the resident-to-working population ratio. Over a 12-month period ending in May-25, employment increased by 1.5%, while the labour force grew by 3.5%, leading to a 1.7 percentage point rise in unemployment. In contrast, Greater Sydney saw employment grow by 2.1% and unemployment rise by only 0.2 percentage points. National employment forecasts from Jobs and Skills Australia project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Sefton's industry mix suggests local employment should increase by 6.2% over five years and 13.1% over ten years, though these are illustrative extrapolations and do not account for localized population projections.

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

Sefton's median income among taxpayers in financial year 2023 was $42,850. The average income stood at $53,314 during the same period. These figures are below Greater Sydney's median and average incomes of $60,817 and $83,003 respectively. By September 2025, estimates suggest Sefton's median income will be approximately $46,647 and the average will be around $58,038, based on an 8.86% Wage Price Index growth since financial year 2023. According to Census 2021 data, individual incomes in Sefton lag at the 7th percentile with weekly earnings of $555. Household income performs better, ranking at the 37th percentile. The majority of residents, 31.3% or 2,163 people, fall within the $1,500 - $2,999 income bracket, similar to the regional average of 30.9%. Housing affordability pressures are severe in Sefton, with only 80.7% of income remaining after housing costs, ranking at the 34th percentile.

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

The dwelling structure in Sefton, as per the latest Census data, consisted of 70.0% houses and 30.0% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Sydney metro's 55.9% houses and 44.1% other dwellings. Home ownership in Sefton stood at 33.3%, with the remaining dwellings either mortgaged (32.0%) or rented (34.8%). The median monthly mortgage repayment in the area was $2,000, below Sydney metro's average of $2,427. Median weekly rent in Sefton was recorded at $425, compared to Sydney metro's $470. Nationally, Sefton's mortgage repayments were higher than the Australian average of $1,863, while rents were substantially above the national figure of $375.

Sefton features high concentrations of family households, with a higher-than-average median household size

Family households account for 77.2% of all households, including 44.2% couples with children, 15.6% couples without children, and 15.7% single parent families. Non-family households make up the remaining 22.8%, consisting of 20.0% lone person households and 2.7% group households. The median household size is 3.3 people, which is larger than the Greater Sydney average of 2.7.

Educational attainment in Sefton aligns closely with national averages, showing typical qualification patterns and performance metrics

The area's university qualification rate is 22.9%, significantly lower than the SA4 region average of 39.1%. Bachelor degrees are most common at 16.8%, followed by postgraduate qualifications (4.9%) and graduate diplomas (1.2%). Vocational credentials are prevalent, with 26.1% of residents aged 15+ holding them, including advanced diplomas (10.3%) and certificates (15.8%). Educational participation is high, with 36.7% of residents currently enrolled in formal education.

This includes 12.3% in secondary education, 11.0% in primary education, and 7.1% pursuing tertiary education.

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

Sefton has 44 active public transport stops offering a mix of train and bus services. These stops are served by 15 routes that facilitate 2,278 weekly passenger trips in total. The average distance to the nearest stop for residents is 135 meters, indicating excellent accessibility. In this primarily residential area, most commuting is outward-bound. Car remains the primary mode of transport at 83%, with train usage at 11%. The average vehicle ownership per dwelling is 1.4, higher than the regional average.

According to the 2021 Census, 33.3% of residents work from home, which may be influenced by COVID-19 conditions. Across all routes, service frequency averages 325 trips per day, equating to approximately 51 weekly trips per stop.

Sefton's residents are extremely healthy with both young and old age cohorts seeing low prevalence of common health conditions

Analysis of health metrics shows strong performance throughout Sefton. Mortality rates and chronic condition prevalence were assessed by AreaSearch, indicating low prevalence of common health conditions across both young and old age cohorts. Private health cover was found to be very low at approximately 48% of the total population (~3,322 people), compared to 59.9% across Greater Sydney and a national average of 55.7%.

The most common medical conditions in the area were arthritis and diabetes, impacting 5.8 and 5.6% of residents respectively. A total of 77.6% of residents declared themselves completely clear of medical ailments, compared to 74.6% across Greater Sydney. The area has 14.8% of residents aged 65 and over (1,022 people). Health outcomes among seniors are particularly strong, with national rankings broadly in line with the general population.

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

Sefton's population is highly diverse, with 48.8% born overseas and 72.6% speaking a language other than English at home. The predominant religion in Sefton is Islam, accounting for 35.7%, significantly higher than the Greater Sydney average of 6.8%. In terms of ancestry, the top groups are Other (20.5%), Lebanese (16.0%), and Vietnamese (16.0%).

These percentages are notably higher compared to regional averages: Lebanese is over five times greater and Vietnamese nearly nine times greater. Additionally, there's an overrepresentation of Chinese (13.6% vs regional 8.4%), Korean (0.8% vs 1.1%), and Samoan (0.7% vs 0.5%).

Sefton's population is younger than the national pattern

Sefton's median age is 35 years, which is slightly younger than Greater Sydney's 37 years and somewhat younger than the national average of 38 years. The age group of 15-24 years has a strong representation at 17.3% compared to Greater Sydney, while the 25-34 age group is less prevalent at 12.1%. Between 2021 and present, the 15-24 age group has increased from 15.8% to 17.3%, whereas the 25-34 age group has decreased from 13.0% to 12.1%. By 2041, population forecasts indicate significant demographic changes for Sefton. The 75-84 age cohort is projected to rise substantially, increasing by 186 people (69%) from 269 to 456. Notably, the combined age groups of 65 and above will account for 67% of total population growth, reflecting the area's aging demographic profile. In contrast, both the 0-4 and 5-14 age groups are expected to decrease in numbers.