Seacombe Gardens

Seacombe Gardens lies within the top quartile of areas nationally for population growth performance according to AreaSearch analysis of recent, and medium to long-term trends

As of November 2025, the estimated population of Seacombe Gardens is around 3,833 people, reflecting a 13.6% increase since the 2021 Census figure of 3,373 people. This growth was inferred from AreaSearch's estimate of 3,782 residents based on ABS ERP data released in June 2024 and an additional 43 validated new addresses since the Census date. The population density ratio is approximately 3,871 persons per square kilometer, placing Seacombe Gardens in the top 10% of national locations assessed by AreaSearch. This growth exceeded both the SA4 region (5.4%) and the SA3 area, making it a growth leader in the region. Overseas migration contributed around 94.0% of overall population gains during recent periods. For projections, AreaSearch adopts ABS/Geoscience Australia figures released in 2024 with a base year of 2022 for each SA2 area.

For areas not covered by this data and years post-2032, the SA State Government's Regional/LGA projections by age category are used, adjusted employing a method of weighted aggregation from LGA to SA2 levels. Based on aggregated SA2-level projections, Seacombe Gardens is expected to grow by 843 persons to reach an estimated population of 4,676 by 2041, reflecting a total increase of 17.9% over the 17-year period.

AreaSearch assessment of residential approval activity sees Seacombe Gardens among the top 30% of areas assessed nationwide

Seacombe Gardens recorded approximately 44 residential properties granted approval annually, with around 223 homes approved over the past five financial years from FY-21 to FY-25. As of FY-26, 16 properties have been approved so far. On average, 1.5 new residents per year per dwelling were constructed between FY-21 and FY-25, suggesting balanced supply and demand with stable market conditions.

The average construction value for new properties was $291,000, lower than regional levels, indicating more affordable housing options. In FY-26, $3.9 million in commercial approvals have been registered, reflecting limited commercial development focus compared to residential activity. Seacombe Gardens has 80.0% more development activity per person than Greater Adelaide and significantly exceeds the national average, demonstrating robust developer interest. Recent construction comprised 54.0% standalone homes and 46.0% medium to high-density housing, offering a mix of townhouses and apartments across various price points. With around 75 people per dwelling approval, Seacombe Gardens exhibits growth area characteristics.

According to the latest AreaSearch quarterly estimate, Seacombe Gardens is projected to add 686 residents by 2041. Current construction levels should adequately meet housing demand, creating favourable conditions for buyers and potentially enabling growth beyond current forecasts.

Seacombe Gardens has moderate levels of nearby infrastructure activity, ranking in the top 50% nationally

Three projects may significantly affect the area's performance: Oaklands Green, Marion Cultural Centre Plaza Upgrade, Flagstaff Road Upgrade, and Seaview High School Upgrade. These are detailed below for their potential relevance.

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

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Employment conditions in Seacombe Gardens remain below the national average according to AreaSearch analysis

Seacombe Gardens has a well-educated workforce with essential services sectors well represented. The unemployment rate was 4.2% as of June 2025.

Employment growth over the past year was estimated at 3.2%. AreaSearch aggregated statistical area data for this information. In June 2025, 1,930 residents were employed, with an unemployment rate of 4.2%, 0.2% higher than Greater Adelaide's rate of 4.0%. Workforce participation was on par with Greater Adelaide at 61.7%.

Employment is concentrated in health care & social assistance, retail trade, and accommodation & food. Health care & social assistance employment levels are at 1.5 times the regional average, while professional & technical employs only 4.5% of local workers, below Greater Adelaide's 7.3%. The area offers limited local employment opportunities as indicated by Census working population vs resident population count. During the year to June 2025, employment levels increased by 3.2%, labour force by 2.8%, reducing unemployment rate by 0.4 percentage points. Greater Adelaide recorded employment growth of 2.1% and labour force growth of 2.1%, with unemployment rising marginally. Jobs and Skills Australia's national employment forecasts from Sep-22 suggest potential future demand within Seacombe Gardens. National employment is forecast to expand by 6.6% over five years and 13.7% over ten years, but growth rates differ significantly between industry sectors. Applying these projections to Seacombe Gardens' employment mix suggests local employment should increase by 7.1% over five years and 14.8% over ten years. This is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections.

Income levels sit below national averages according to AreaSearch assessment

AreaSearch's aggregation of latest postcode level ATO data released in financial year 2022 shows Seacombe Gardens had a median income among taxpayers of $51,048 and an average income of $60,595. Both figures are below the national averages of $52,592 and $64,886 for Greater Adelaide respectively. Based on Wage Price Index growth of 12.83% from financial year 2022 to September 2025, estimated median income would be approximately $57,597 and average income around $68,369. Census data indicates household, family, and personal incomes in Seacombe Gardens rank modestly, between the 30th and 31st percentiles. Income analysis reveals that 33.5% of residents (1,284 people) fall into the $1,500 - 2,999 income bracket, similar to regional patterns where 31.8% occupy this range. Housing affordability pressures are severe in Seacombe Gardens, with only 79.6% of income remaining after housing costs, ranking at the 24th percentile.

Seacombe Gardens displays a diverse mix of dwelling types, with a higher proportion of rental properties than the broader region

In Seacombe Gardens, as per the latest Census evaluation, 57.1% of dwellings were houses, with the remaining 43.0% comprising semi-detached properties, apartments, and other dwelling types. This compares to Adelaide metro's figures of 70.8% houses and 29.2% other dwellings. Home ownership in Seacombe Gardens stood at 23.3%, with mortgaged dwellings making up 33.0% and rented properties accounting for 43.7%. The median monthly mortgage repayment in the area was $1,672, lower than Adelaide metro's average of $1,700. The median weekly rent in Seacombe Gardens was $370, higher than Adelaide metro's figure of $330. Nationally, Seacombe Gardens' median monthly mortgage repayment is below the Australian average of $1,863, and its median weekly rent is lower than the national figure of $375.

Seacombe Gardens features high concentrations of group households, with a lower-than-average median household size

Family households constitute 63.1% of all households, including 23.2% couples with children, 23.4% couples without children, and 14.7% single parent families. Non-family households account for the remaining 36.9%, with lone person households at 29.7% and group households comprising 6.9%. The median household size is 2.3 people, which is smaller than the Greater Adelaide average of 2.4.

Seacombe Gardens performs slightly above the national average for education, showing competitive qualification levels and steady academic outcomes

The area's educational profile is notable regionally with university qualification rates at 31.7% among residents aged 15+, surpassing South Australia's average of 25.7% and the SA4 region's rate of 28.1%. Bachelor degrees are most prevalent at 20.7%, followed by postgraduate qualifications (8.4%) and graduate diplomas (2.6%). Vocational credentials are also prominent, with 30.6% of residents aged 15+ holding such qualifications – advanced diplomas comprise 10.2% and certificates make up 20.4%.

Educational participation is high, with 29.0% of residents currently enrolled in formal education, including 9.3% in tertiary education, 8.7% in primary education, and 4.7% pursuing secondary education. Stella Maris Parish School and Darlington Primary School serve a total of 633 students, operating under typical Australian school conditions (ICSEA: 1034) with balanced educational opportunities. Both schools focus exclusively on primary education, while secondary options are available in nearby areas. The area functions as an education hub with 16.5 school places per 100 residents – significantly higher than the regional average of 10.8 – attracting students from surrounding communities.

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

The transport analysis indicates 14 active stops operating within Seacombe Gardens. These are mixed bus stops serviced by 29 routes, offering 2,214 weekly passenger trips in total. Transport accessibility is excellent with residents typically located 180 meters from the nearest stop.

Service frequency averages 316 trips per day across all routes, resulting in approximately 158 weekly trips per individual stop.

Health outcomes in Seacombe Gardens are marginally below the national average with the level of common health conditions among the general population somewhat typical, though higher than the nation's average among older cohorts

Seacombe Gardens shows below-average health outcomes, with common health conditions prevalent at levels higher than the national average among older residents.

Mental health issues and asthma are the most common medical conditions, affecting 9.3% and 7.6% of residents respectively. Approximately 51% of the population has private health cover (around 1,953 people). Around 70% declare themselves free from medical ailments, slightly higher than Greater Adelaide's 68.1%. The area has a lower proportion of seniors aged 65 and over at 16.1% compared to Greater Adelaide's 19.2%, but health outcomes among this age group require more attention.

Seacombe Gardens is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Seacombe Gardens has a high level of cultural diversity, with 30.5% of its population speaking a language other than English at home and 36.7% born overseas. Christianity is the predominant religion in Seacombe Gardens, comprising 37.2% of the population. Hinduism is overrepresented compared to Greater Adelaide, making up 4.8% of Seacombe Gardens' population versus 4.1%.

The top three ancestry groups are English (25.8%), Australian (21.7%), and Other (12.3%). Notably, Polish, Korean, and Filipino ethnic groups have higher representation in Seacombe Gardens compared to regional averages: Polish at 1.1% vs 1.1%, Korean at 1.0% vs 0.3%, and Filipino at 2.4% vs 1.2%.

Seacombe Gardens's population is younger than the national pattern

Seacombe Gardens' median age is 34 years, which is lower than Greater Adelaide's average of 39 and significantly below Australia's median of 38. Compared to Greater Adelaide, Seacombe Gardens has a higher proportion of residents aged 25-34 (20.1%), but fewer residents aged 55-64 (8.5%). This concentration of 25-34 year-olds is notably above the national average of 14.5%. Between the 2021 Census and now, the proportion of residents aged 35 to 44 has increased from 14.2% to 15.4%, while the proportion of those aged 55 to 64 has decreased from 10.1% to 8.5%. By 2041, demographic modeling projects significant changes in Seacombe Gardens' age profile. The 45 to 54 cohort is expected to grow by 34%, adding 119 residents to reach a total of 476. Meanwhile, the 65 to 74 cohort is projected to grow by a modest 5% (an increase of 19 people).