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

Based on analysis of ABS population updates for the broader area, and new addresses validated by AreaSearch, the suburb of Seacombe Gardens' population is estimated at around 3,905 as of Feb 2026. This reflects an increase of 532 people (15.8%) since the 2021 Census, which reported a population of 3,373 people. The change is inferred from the resident population of 3,708, estimated by AreaSearch following examination of the latest ERP data release by the ABS in June 2024, and an additional 43 validated new addresses since the Census date. This level of population equates to a density ratio of 3,944 persons per square kilometer, which lies in the top 10% of national locations assessed by AreaSearch, making land in the area a highly-sought resource. Seacombe Gardens' 15.8% growth since the 2021 census exceeded the SA4 region (7.4%), along with the state, marking it as a growth leader in the region. Population growth for the suburb was primarily driven by overseas migration that contributed approximately 94.0% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For any SA2 areas not covered by this data, and for years post-2032, the SA State Government's Regional/LGA projections by age category, released in 2023 and based on 2021 data, are adopted with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Moving forward with demographic trends, an above median population growth of statistical areas analysed by AreaSearch is projected, with the suburb expected to grow by 823 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 15.5% in total over the 17 years.

Recent residential development output has been above average within Seacombe Gardens when compared nationally

AreaSearch analysis shows Seacombe Gardens had around 39 residential properties approved annually. Between FY-21 and FY-25, approximately 197 homes were approved, with another 19 in FY-26 so far. This results in an average of 1.7 new residents per year per dwelling constructed over the past five financial years.

The average construction value for these dwellings is $291,000. In FY-26, Seacombe Gardens has recorded $2.9 million in commercial development approvals. Compared to Greater Adelaide, Seacombe Gardens has 60.0% more development activity per person. New building activity comprises 55.0% detached dwellings and 45.0% townhouses or apartments. The location has approximately 115 people per dwelling approval, indicating a growing market.

Future projections estimate Seacombe Gardens to add 604 residents by 2041. Current construction levels should meet demand adequately, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Seacombe Gardens has emerging levels of nearby infrastructure activity, ranking in the 28thth percentile nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified three projects likely to impact this area. Key projects include Oaklands Green, Marion Cultural Centre Plaza Upgrade, Flagstaff Road Upgrade, and Seaview High School Upgrade. The following details the most relevant projects.

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

Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

Employment performance in Seacombe Gardens has been broadly consistent with national averages

Seacombe Gardens has a well-educated workforce with essential services sectors well represented. The unemployment rate was 3.9% as of September 2025, with an estimated employment growth of 4.3% over the past year based on AreaSearch aggregation of statistical area data. There were 1,969 residents in work at this time, and the unemployment rate aligned with Greater Adelaide's rate of 3.9%.

Workforce participation was broadly similar to Greater Adelaide's 66.4%. According to Census responses, only 8.5% of residents worked from home, though Covid-19 lockdown impacts should be considered. The key industries of employment among residents were health care & social assistance, retail trade, and accommodation & food. Health care & social assistance showed notable concentration with employment levels at 1.5 times the regional average, while professional & technical services had lower representation at 4.5% compared to the regional average of 7.3%.

The predominantly residential area offered limited local employment opportunities, as indicated by the count of Census working population versus resident population. Over a 12-month period ending in September 2025, employment increased by 4.3%, and labour force increased by 3.6%, resulting in unemployment falling by 0.6 percentage points. In comparison, Greater Adelaide saw employment grow by 3.0%, labour force expand by 2.9%, and unemployment fall by 0.1 percentage points during the same period. 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 Seacombe Gardens' employment mix suggests local employment should increase by 7.1% over five years and 14.8% over ten years, based on a simple weighting extrapolation for illustrative purposes.

Income levels sit below national averages according to AreaSearch assessment

The suburb of Seacombe Gardens has an income level below the national average according to the latest Australian Taxation Office data aggregated by AreaSearch for the financial year 2023. The median income among taxpayers in Seacombe Gardens is $51,048 and the average income stands at $60,595. These figures compare to those for Greater Adelaide, which are $54,808 (median) and $66,852 (average). Based on Wage Price Index growth of 8.8% since financial year 2023, current estimates for Seacombe Gardens would be approximately $55,540 (median) and $65,927 (average) as of September 2025. According to the 2021 Census, household, family, and personal incomes in Seacombe Gardens all rank modestly, between the 30th and 31st percentiles. The largest segment comprises 33.5% earning $1,500 - $2,999 weekly (1,308 residents), which mirrors regional levels where 31.8% occupy this bracket. 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, 57.1% of dwellings were houses while 43.0% consisted of semi-detached homes, apartments, and other types. This compares to Adelaide metro's figures of 75.2% houses and 24.9% other dwellings. Home ownership in Seacombe Gardens stood at 23.3%, with mortgaged properties at 33.0% and rented dwellings at 43.7%. The median monthly mortgage repayment was $1,672, exceeding Adelaide metro's average of $1,562. Median weekly rent in Seacombe Gardens was $370, higher than Adelaide metro's $320. Nationally, Seacombe Gardens' mortgage repayments were lower than the Australian average of $1,863, and rents were less than the national figure of $375.

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

Family households account for 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 constitute the remaining 36.9%, with lone person households at 29.7% and group households comprising 6.9% of the total. The median household size is 2.3 people, which is smaller than the Greater Adelaide average of 2.5.

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% for residents aged 15+, surpassing the South African average of 25.7% and the SA4 region average of 28.1%. Bachelor degrees are most prevalent at 20.7%, followed by postgraduate qualifications at 8.4% and graduate diplomas at 2.6%. Vocational credentials are held by 30.6% of residents aged 15+, including advanced diplomas (10.2%) and certificates (20.4%).

Educational participation is high, with 29.0% of residents currently enrolled in formal education, comprising 9.3% in tertiary education, 8.7% in primary education, and 4.7% pursuing secondary education.

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

Public transport analysis shows 14 active stops operating within Seacombe Gardens, consisting of bus services. These are served by 30 individual routes, collectively offering 2,220 weekly passenger trips. Transport accessibility is rated excellent, with residents typically located 180 meters from the nearest stop. Most residents commute outward due to the area's residential nature. Car remains the dominant mode at 81%, with 8% using buses. Vehicle ownership averages 1.1 per dwelling, below the regional average.

Only 8.5% of residents work from home (2021 Census), which may reflect COVID-19 conditions. Service frequency averages 317 trips daily across all routes, equating to approximately 158 weekly trips per 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

Health indicators suggest below-average outcomes in Seacombe Gardens.

AreaSearch's assessment found mortality rates and chronic condition prevalence to be higher than average. Common health conditions were somewhat typical but higher among older cohorts. Private health cover was relatively low at approximately 51% of the total population, around 1,990 people. The most common medical conditions were mental health issues affecting 9.3% of residents and asthma impacting 7.6%. 69.6% declared themselves completely clear of medical ailments compared to 67.9% across Greater Adelaide. Health outcomes among the working-age population were broadly typical. The area had 16.3% of residents aged 65 and over, totaling 636 people, which was lower than Greater Adelaide's 19.3%. Health outcomes among seniors presented some challenges but ranked lower nationally than the broader population.

Seacombe Gardens was found to be more culturally diverse than the vast majority of local markets in Australia, upon 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, accounting for 37.2% of the population. However, Hinduism is overrepresented compared to Greater Adelaide, comprising 4.8% versus 2.8%.

The top three represented ancestry groups are English (25.8%), Australian (21.7%), and Other (12.3%). Notably, Polish (1.1%) Korean (1.0%), and Filipino (2.4%) ethnic groups are overrepresented in Seacombe Gardens compared to regional averages of 1.0%, 0.3%, and 1.0% respectively.

Seacombe Gardens's population is younger than the national pattern

Seacombe Gardens has a median age of 34 years, which is lower than Greater Adelaide's average of 39 and Australia's median of 38. Compared to Greater Adelaide, Seacombe Gardens has a higher percentage of residents aged 25-34 (19.7%) but fewer residents aged 55-64 (8.2%). This concentration of 25-34 year-olds is well above the national average of 14.4%. Between the 2021 Census and present, the percentage of residents aged 35 to 44 has increased from 14.2% to 15.6%, while the percentage of those aged 55 to 64 has decreased from 10.1% to 8.2%. By 2041, demographic modeling suggests Seacombe Gardens' age profile will change significantly. The 45 to 54 cohort is projected to grow by 29%, adding 105 residents to reach 473. Meanwhile, the 65 to 74 cohort is projected to grow by a modest 2% (8 people).