Somerton Park

An assessment of population growth drivers in Somerton Park reveals an overall ranking slightly below national averages considering recent, and medium term trends

The population of Somerton Park was estimated at 6,258 as of Feb 2026, reflecting a growth of 447 people since the 2021 Census. This increase represents a 7.7% rise from the previous population count of 5,811 people. The change is inferred from AreaSearch's estimation of the resident population at 6,069 following examination of ABS data released in June 2024 and validation of 12 new addresses since the Census date. This results in a population density ratio of 2,793 persons per square kilometer, placing Somerton Park in the upper quartile relative to other locations assessed by AreaSearch. The suburb's growth rate of 7.7% exceeded the SA4 region's growth rate of 7.4%, indicating it as a growth leader within its region. Overseas migration was the primary driver of population growth during recent periods for Somerton Park.

AreaSearch adopts 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, SA State Government's Regional/LGA projections are used, adjusted employing a method of weighted aggregation from LGA to SA2 levels. Based on aggregated SA2-level projections, Somerton Park is expected to increase its population by 896 persons to reach a total of 7,154 by the year 2041, reflecting an overall gain of 11.7% over the 17-year period.

AreaSearch analysis of residential development drivers sees Somerton Park recording a relatively average level of approval activity when compared to local markets analysed countrywide

AreaSearch analysis of ABS building approval numbers indicates Somerton Park averaged around 32 new dwelling approvals per year. Over the past five financial years, from FY-21 to FY-25, approximately 160 homes were approved, with a further 10 approved in FY-26 so far. This averages out to about 1.4 new residents per year per dwelling constructed during this period.

The average construction value of these dwellings is $631,000, suggesting developers are targeting the premium market segment. In FY-26, there have been $5.7 million in commercial approvals, reflecting the area's residential character. Compared to Greater Adelaide, Somerton Park has 13.0% less new development per person but ranks among the 68th percentile nationally for new development. The current mix of new developments is 41.0% detached houses and 59.0% attached dwellings, a shift from the existing housing pattern of 63.0% houses. This trend may be due to diminishing developable land availability and evolving lifestyle preferences.

With approximately 198 people per dwelling approval, Somerton Park is expanding its market. Future projections estimate an addition of 735 residents by 2041. Current construction levels should adequately meet demand, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Somerton Park has emerging levels of nearby infrastructure activity, ranking in the 26thth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified one major project likely affecting the region: Tram Grade Separation at Marion Road and Cross Road, Plympton. Other key projects include Tram Grade Separation at Morphett Road, Morphettville, River Torrens to Darlington (T2D) Project, and 12-Storey Residential Tower In Glenelg. The following list details those most relevant.

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The exceptional employment performance in Somerton Park places it among Australia's strongest labour markets

Somerton Park has an educated workforce with professional services well represented. Its unemployment rate is 0.9%, with estimated employment growth of 3.9% in the past year (AreaSearch data). As of September 2025, 3,312 residents are employed, with an unemployment rate of 3.0%, lower than Greater Adelaide's 3.9%.

Workforce participation is 63.7%, below Greater Adelaide's 66.4%. According to Census responses, 15.4% work from home. Leading industries include health care & social assistance, education & training, and professional & technical services. The area has a notable concentration in professional & technical jobs, at 1.3 times the regional average, but manufacturing representation is lower at 4.6%.

Many residents commute elsewhere for work (Census data). Between September 2024 and September 2025, employment levels increased by 3.9% and labour force by 3.8%, reducing unemployment by 0.2 percentage points. Greater Adelaide saw employment growth of 3.0% and a 0.1 percentage point decrease in unemployment. Jobs and Skills Australia's national employment forecasts (May-25) suggest Somerton Park's employment should increase by 7.0% over five years and 14.3% over ten years, based on industry-specific projections.

Income levels align closely with national averages, indicating typical economic conditions for Australian communities according to AreaSearch analysis

The suburb of Somerton Park has an extremely high national income level according to the latest Australian Taxation Office data aggregated by AreaSearch for the financial year ended June 2023. The median income among taxpayers in Somerton Park is $56,518 and the average income stands at $79,707. For Greater Adelaide, these figures are $54,808 and $66,852 respectively. Based on Wage Price Index growth of 8.8% from financial year 2023 to September 2025, current estimates for Somerton Park would be approximately $61,492 (median) and $86,721 (average). According to the Census conducted in August 2021, personal income ranks at the 68th percentile ($908 weekly), while household income sits at the 43rd percentile. The largest segment comprises 24.2% earning between $1,500 and $2,999 weekly (1,514 residents). This aligns with the metropolitan region where this cohort likewise represents 31.8%. After housing expenses, 85.6% of income remains for other expenses. The suburb's SEIFA income ranking places it in the 7th decile.

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

In Somerton Park, as per the latest Census evaluation, 62.7% of dwellings were houses while 37.3% comprised semi-detached homes, apartments, and other types. In contrast, Adelaide metro had 75.2% houses and 24.9% other dwellings. Home ownership in Somerton Park stood at 43.0%, with mortgaged dwellings at 31.6% and rented properties at 25.5%. The median monthly mortgage repayment was $2,058, higher than Adelaide metro's average of $1,562. Weekly rent in Somerton Park averaged $335, compared to Adelaide metro's $320. Nationally, Somerton Park's mortgage repayments exceeded the Australian average of $1,863, while rents were lower at $375.

Somerton Park features high concentrations of lone person households, with a lower-than-average median household size

Family households account for 62.5% of all households, including 26.5% couples with children, 27.5% couples without children, and 7.9% single parent families. Non-family households constitute the remaining 37.5%, with lone person households at 34.6% and group households comprising 2.7% of the total. The median household size is 2.2 people, which is smaller than the Greater Adelaide average of 2.5.

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

The area's educational profile is notable regionally, with university qualification rates of 35.2% among residents aged 15+, surpassing both the South African average of 25.7% and that of the SA4 region at 28.1%. Bachelor degrees are most prevalent at 23.6%, followed by postgraduate qualifications (8.3%) and graduate diplomas (3.3%). Vocational credentials are also prominent, with 30.1% of residents aged 15+ holding such qualifications – advanced diplomas account for 12.0% while certificates make up 18.1%.

Educational participation is high, with 26.2% of residents currently enrolled in formal education. This includes 8.4% enrolled in secondary education, 8.1% in primary education, and 6.1% pursuing tertiary education.

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

The public transport analysis indicates that Somerton Park has 29 active transport stops in operation, all of which are bus stops. These stops are serviced by a total of 24 individual routes, collectively facilitating 1,262 weekly passenger trips. The report rates the area's transport accessibility as excellent, with residents typically located just 177 meters from their nearest transport stop. Being primarily residential, most residents commute outward daily. Car remains the dominant mode of transportation in Somerton Park at an average ownership rate of 1.3 vehicles per dwelling. According to the 2021 Census, approximately 15.4% of residents work from home, a figure potentially influenced by COVID-19 conditions.

The service frequency averages out to 180 trips per day across all routes, equating to roughly 43 weekly trips per individual stop.

The level of general health in Somerton Park is notably higher than the national average with both young and old age cohorts seeing low prevalence of common health conditions

Somerton Park demonstrates above-average health outcomes based on AreaSearch's assessment of mortality rates and chronic condition prevalence. Both young and old age cohorts show low prevalence of common health conditions.

The rate of private health cover is exceptionally high at approximately 58% of the total population (3,658 people), compared to 52.7% across Greater Adelaide. The most common medical conditions in the area are arthritis and asthma, impacting 9.2 and 7.6% of residents respectively. 65.9% of residents declare themselves completely clear of medical ailments, compared to 67.9% across Greater Adelaide. The under-65 population demonstrates better than average health outcomes. The area has 29.6% of residents aged 65 and over (1,852 people), which is higher than the 19.3% in Greater Adelaide. Health outcomes among seniors are above average, with national rankings broadly in line with the general population.

In terms of cultural diversity, Somerton Park records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics

Somerton Park's population was found to be roughly similar to the wider region in terms of cultural diversity, with 80.0% born in Australia, 92.2% being citizens, and 90.8% speaking English only at home. Christianity was the predominant religion, comprising 50.9% of Somerton Park's population. However, Judaism was overrepresented at 0.2%, compared to 0.1% across Greater Adelaide.

The top three ancestry groups were English (32.4%), Australian (25.0%), and Scottish (8.3%). Notably, Polish (1.1%) and German (5.9%) were overrepresented compared to regional averages of 1.0% and 5.1%, respectively.

Somerton Park hosts an older demographic, ranking in the top quartile nationwide

Somerton Park's median age is 48 years, which is significantly higher than Greater Adelaide's 39 years and the national average of 38 years. Compared to Greater Adelaide, Somerton Park has a higher concentration of residents aged 75-84 (11.7%) but fewer residents aged 25-34 (8.5%). This 75-84 concentration is well above the national figure of 6.1%. Between the 2021 Census and now, the percentage of Somerton Park's population in the 75 to 84 age group has increased from 8.7% to 11.7%. During this period, the 45 to 54 age cohort has decreased from 13.9% to 12.4%, and the 55 to 64 age group has dropped from 13.7% to 12.6%. By 2041, Somerton Park is projected to experience notable shifts in its age composition. The demographic shift will be led by the 85+ age group, which is expected to grow by 105%, reaching 641 people from 312. This growth is anticipated to make residents aged 65 and older represent 73% of the total population increase. Conversely, both the 0 to 4 and 5 to 14 age groups are projected to decrease in number.