Sellicks Beach (SA)

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According to ABS population updates for the wider region and new address data validated by Districts after the Census, the suburb of Sellicks Beach has an estimated population of 2,734 as of May 2026. This represents a growth of 29 individuals (1.1%) from the 2,705 residents recorded in the 2021 Census. This adjustment is calculated from an estimated resident population of 2,709, determined by Districts using the June 2025 ABS ERP release and 4 validated new addresses added after the Census. The population level results in a density ratio of 441 persons per square kilometer, offering ample room per resident and potential capacity for future growth. The expansion of the local population was heavily supported by international migration, which accounted for approximately 50.0% of total gains, although natural increase and interstate migration also contributed positive growth.

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Sellicks Beach features a competent labor pool where key service industries are well represented, with an unemployment rate of 4.4% and an estimated employment growth of 4.4% over the previous year according to Districts aggregations of statistical area information. As of March 2026, 1,458 residents were employed and the unemployment rate stood at 0.6% higher than the Greater Adelaide rate of 3.8%, while workforce participation remained broadly comparable to Greater Adelaide's 66.6%. Census data indicates that only 11.0% of residents worked from home, but the effects of Covid-19 lockdowns should be taken into account when interpreting this figure.

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The latest postcode-level ATO records compiled by Districts for financial year 2023 show that personal earnings in the suburb of Sellicks Beach fall below the national benchmark, with a median of $51,657 and an average of $60,013. For comparison, Greater Adelaide recorded a median income of $54,808 and an average of $66,852. Adjusting for the Wage Price Index growth of 10.17% since financial year 2023, local incomes are estimated at approximately $56,911 for the median and $66,116 for the average as of March 2026. In the 2021 Census, household, family, and personal incomes in the suburb of Sellicks Beach ranked in the lower tier, placing between the 30th and 37th percentiles. Income distribution shows the largest bracket contains 32.7% of residents (894 people) earning between $1,500 and $2,999, mirroring the regional trend of in this range. Housing costs place a significant burden on households, with only of disposable income remaining after housing costs, placing the area in the th percentile.

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According to the last Census, the housing mix in the suburb of Sellicks Beach consisted of 97.5% single-family houses and 2.6% alternative housing styles such as semi-detached homes, apartments, or other structures, compared to metropolitan Adelaide where houses made up 75.2% and other configurations comprised 24.9%. The rate of outright home ownership in the suburb of Sellicks Beach stood at 29.3%, slightly under the metropolitan average, with the remaining properties being purchased under a mortgage (52.9%) or occupied by tenants (17.8%). The median monthly mortgage payment was $1,391, which is below the metropolitan Adelaide average of $1,562, while the median weekly rent was recorded at $320, matching the metropolitan Adelaide average of $320. On a national level, mortgage repayments in the suburb of Sellicks Beach are lower than the Australian average of $1,863, and weekly rents are below the national median of $375.

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Family units constitute the majority of households at 73.2%, consisting of couples with children at 29.8%, couples without children at 30.9%, and single-parent homes at 12.3%. Non-family households account for the remaining 26.8%, with single-person households representing 24.0% and shared group households making up 2.7% of the total. The median household occupancy is 2.4 individuals, which is slightly smaller than the Greater Adelaide average of 2.5.

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The community has lower rates of tertiary education, with university completion rates at 16.3% compared to the national average of 30.4%. This represents both a structural challenge and a focus area for future education programs. Among degree holders, bachelor qualifications are the most common at 12.1%, followed by postgraduate degrees at 3.1% and graduate diplomas at 1.1%. Vocational and technical qualifications are highly prevalent, with 46.8% of residents aged 15 and over possessing vocational training, consisting of advanced diplomas at 11.3% and certificates at 35.5%.

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Public transport services in the suburb of Sellicks Beach consist of 21 active bus stops. These stops are served by 4 distinct routes, which combine to offer 251 weekly passenger journeys. Accessibility is high, with residents living an average of 186 meters from their nearest transit stop. Given the residential profile, the majority of workers travel outside the area, with private vehicles remaining the primary choice for 92% of commuters. Households own an average of 1.7 vehicles, which exceeds the regional standard. A relatively low proportion of 11.0% of workers operated from home, based on 2021 Census data, which may reflect pandemic-era arrangements.

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Health assessments indicate notable health difficulties in the suburb of Sellicks Beach, based on Districts evaluations of mortality and chronic illness rates across young and old brackets, alongside a low rate of private health insurance coverage, which is held by roughly 51% of residents, representing approximately 1,387 people.

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The suburb of Sellicks Beach displays lower levels of cultural diversity relative to wider benchmarks, with 78.0% of residents born in Australia, 88.5% holding citizenship, and 95.5% speaking only English at home. Christianity is the primary religion, followed by 31.1% of the population. The most distinct statistical anomaly is in Judaism, which is practiced by none of the residents, compared to 0.1% of the population across Greater Adelaide.

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The median age in the suburb of Sellicks Beach is 41 years, which is higher than the Greater Adelaide average of 39 years and above the national median of 38 years. The local demographic is characterized by a high proportion of people aged 55 to 64 (14.7%), while the 25 to 34 age bracket is smaller (12.4%) than the metropolitan Adelaide average. Since 2021, the 75 to 84 age cohort has increased from 4.5% to 6.2% of the total population. Meanwhile, the 45 to 54 group decreased from 14.6% to 13.1%, and the 5 to 14 cohort declined from 12.9% to 11.6%. Projections for indicate notable changes in the age distribution of the suburb of Sellicks Beach. The cohort aged to is expected to expand by people (), rising from to residents. Significantly, residents aged and older will represent of the overall population growth, underscoring the aging trend in the area. Conversely, the to and to brackets are projected to shrink.

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Sellicks Beach currently has an estimated 147 children under 5 years old, comprising approximately 86 children aged 0-2 and 56 children aged 3-4. This cohort declined by an estimated 3% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 0% by 2041 (to approximately 147 children). Meanwhile the 5-12 cohort currently amounts to 284. Birth rates in the area have averaged 9.9 per 1,000 residents over the latest two-year period, a moderate rate (within the middle tier nationally). This rate has slowed down slightly in recent years however.