Sellicks Beach

Sellicks Beach has seen population growth performance typically on par with national averages when looking at short and medium term trends

As of November 2025, the estimated population of Sellicks Beach is around 3,053, reflecting a growth of 348 people since the 2021 Census. This increase represents a 12.9% rise from the previous population of 2,705. The current population estimate is based on AreaSearch's validation of new addresses and examination of the latest ERP data release by the ABS in June 2024, which estimated the resident population at 3,036. This growth equates to a density ratio of 492 persons per square kilometer. The suburb has experienced significant population growth since the 2021 Census, exceeding both the SA3 area (4.9%) and the SA4 region. The primary driver of this growth was overseas migration, contributing approximately 50% of overall population gains during recent periods.

However, all factors including natural growth and interstate migration were positive contributors. AreaSearch uses ABS/Geoscience Australia projections for each SA2 area released in 2024 with a base year of 2022. For areas not covered by this data and years post-2032, the SA State Government's Regional/LGA projections by age category are adopted after adjustments using weighted aggregation methods. Looking ahead, Sellicks Beach is expected to experience population growth just below the median of Australian statistical areas. By 2041, the suburb's population is projected to increase by 179 persons based on aggregated SA2-level projections, reflecting a decrease of 0.8% in total over the 17-year period.

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

AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, shows Sellicks Beach averaged around 23 new dwelling approvals each year over the past five financial years. This totals an estimated 115 homes. So far in FY-26, 9 approvals have been recorded.

The average population growth per dwelling built over these five years (FY-21 to FY-25) was 1.2 people. New dwellings are developed at an average construction cost value of $445,000. Compared to Greater Adelaide, Sellicks Beach has 70.0% higher new home approvals per person. The area's building activity comprises 86.0% standalone homes and 14.0% medium and high-density housing, maintaining its traditional low density character focused on family homes.

With around 102 people per dwelling approval, Sellicks Beach exhibits characteristics of a growth area. Population projections indicate stability or decline, which should reduce housing demand pressures, benefiting potential buyers.

Sellicks Beach has moderate levels of nearby infrastructure activity, ranking in the 42ndth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified one major project expected to affect this region: Sellicks Beach Code Amendment, Fleurieu Connections - Main South Road and Victor Harbor Road Duplication, Sellicks Hill Quarry Operations, and Main South Road Duplication Project (Stage 2) - Aldinga to Sellicks Beach are key projects. The following details those most relevant.

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Employment conditions in Sellicks Beach remain below the national average according to AreaSearch analysis

Sellicks Beach has a skilled workforce with well-represented essential services sectors. The unemployment rate was 4.9% in June 2025, an increase of 0.9% compared to Greater Adelaide's rate of 4.0%.

Employment growth over the past year was estimated at 2.8%. There are 1,498 residents currently employed. Leading employment industries include health care & social assistance, construction, and retail trade. Construction is particularly strong with an employment share of 1.9 times the regional level.

Conversely, professional & technical services show lower representation at 3.7% compared to the regional average of 7.3%. Employment opportunities locally appear limited as indicated by the count of Census working population versus resident population. Between June 2024 and June 2025, employment levels increased by 2.8%, labour force grew by 2.7%, resulting in a slight fall in unemployment. In contrast, Greater Adelaide saw employment rise by 2.1% and the labour force grow by 2.1%, with a marginal increase in unemployment. Jobs and Skills Australia's national employment forecasts from Sep-22 offer insight into potential future demand within Sellicks Beach. These projections suggest national employment should expand by 6.6% over five years and 13.7% over ten years, but growth rates differ significantly between industry sectors. Applying these industry-specific projections to Sellicks Beach's employment mix suggests local employment should increase by 6.3% over five years and 13.3% over ten years.

Income levels sit below national averages according to AreaSearch assessment

AreaSearch's aggregation of latest postcode level ATO data released for financial year ended June 2022 shows Sellicks Beach had a median income among taxpayers of $51,657 with the average at $60,013. This is below national averages of $52,592 and $64,886 across Greater Adelaide respectively. Based on Wage Price Index growth of 12.83% since financial year ended June 2022, current estimates would be approximately $58,285 (median) and $67,713 (average) as of September 2025. According to Australian Bureau of Statistics Census data for 2021, household incomes rank at the 34th percentile, family incomes at the 37th percentile, and personal incomes at the 30th percentile in Sellicks Beach. Income analysis reveals that 32.7% of residents earn $1,500 - 2,999 weekly (998 residents), similar to the broader area where 31.8% fall within this range. Housing affordability pressures are severe with only 84.1% of income remaining after housing costs, ranking at the 30th percentile.

Sellicks Beach is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

Sellicks Beach had 97.5% houses and 2.6% other dwellings in its dwelling structure as of the latest Census, compared to Adelaide metro's 89.2% houses and 10.7% other dwellings. Home ownership was at 29.3%, with mortgaged dwellings at 52.9% and rented ones at 17.8%. The median monthly mortgage repayment was $1,391, lower than Adelaide metro's $1,452. The median weekly rent was $320, compared to Adelaide metro's $314. Nationally, Sellicks Beach had significantly lower mortgage repayments at $1,391 versus Australia's average of $1,863, and substantially lower rents at $320 compared to the national figure of $375.

Sellicks Beach has a typical household mix, with a lower-than-average median household size

Family households account for 73.2 percent of all households, including 29.8 percent couples with children, 30.9 percent couples without children, and 12.3 percent single parent families. Non-family households constitute the remaining 26.8 percent, with lone person households at 24.0 percent and group households comprising 2.7 percent of the total. The median household size is 2.4 people, which is smaller than the Greater Adelaide average of 2.5.

Sellicks Beach shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

The area's university qualification rate is 16.3%, significantly lower than Australia's average of 30.4%. Bachelor degrees are the most common at 12.1%, followed by postgraduate qualifications (3.1%) and graduate diplomas (1.1%). Vocational credentials are prevalent, with 46.8% of residents aged 15+ holding them, including advanced diplomas (11.3%) and certificates (35.5%). Educational participation is high at 27.7%, with 12.2% in primary education, 6.2% in secondary education, and 3.7% pursuing tertiary education.

Schools appear to be located outside the immediate catchment boundaries, requiring residents to access them in neighboring areas.

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

Sellicks Beach has 21 active public transport stops, all of which are bus stops. Four different routes service these stops, offering a total of 251 weekly passenger trips. The average distance from residents' homes to the nearest stop is 186 meters.

On average, there are 35 trips per day across all routes, which translates to approximately 11 weekly trips per individual stop.

Health performance in Sellicks Beach is lower than average with common health conditions somewhat prevalent across both younger and older age cohorts

Sellicks Beach faces significant health challenges with common health conditions prevalent across both younger and older age cohorts. The rate of private health cover is relatively low at approximately 51% of the total population (~1,549 people), compared to 48.6% across Greater Adelaide.

The most common medical conditions in the area are arthritis and mental health issues, impacting 9.7 and 9.2% of residents respectively, while 65.1% declare themselves completely clear of medical ailments, compared to 62.9% across Greater Adelaide. The area has 18.1% of residents aged 65 and over (552 people), which is lower than the 21.0% in Greater Adelaide. Health outcomes among seniors are above average, performing even better than the general population in health metrics.

Sellicks Beach ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

Sellicks Beach has a low cultural diversity, with 78.0% of its population born in Australia and 88.5% being citizens. English is the primary language spoken at home by 95.5%. Christianity is the dominant religion, accounting for 31.1%.

Judaism is not represented (0.0%), compared to 0.1% in Greater Adelaide. The top three ancestry groups are English (38.2%), Australian (28.3%), and Irish (7.3%). Welsh (1.0%) is overrepresented compared to the regional average of 0.8%. Hungarian (0.5%) and Polish (1.2%) also have higher representations than their respective regional averages of 0.3% and 0.9%.

Sellicks Beach hosts an older demographic, ranking in the top quartile nationwide

The median age in Sellicks Beach is 41 years, which is higher than Greater Adelaide's average of 39 years and exceeds the national average of 38 years. The age profile shows that the 55-64 year-old group is particularly prominent at 15.1%, while the 15-24 year-old group is comparatively smaller at 10.8%. Between 2021 and present, the 75 to 84 age group has grown from 4.5% to 5.6% of the population. Conversely, the 5 to 14 age cohort has declined from 12.9% to 11.7%. By 2041, demographic projections show significant shifts in Sellicks Beach's age structure. The 75 to 84 age cohort is projected to increase by 51 people (30%) from 170 to 222. Notably, the combined 65+ age groups will account for 87% of total population growth, reflecting the area's aging demographic profile. Meanwhile, the 0 to 4 and 15 to 24 age cohorts are expected to experience population declines.