South Plympton

South Plympton 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 South Plympton is around 4,864 people. This figure reflects a growth of 143 individuals since the 2021 Census, which recorded a population of 4,721. The increase is inferred from AreaSearch's estimation of the resident population at 4,825, based on examination of the latest ABS ERP data release in June 2024 and an additional 81 validated new addresses since the Census date. This results in a population density ratio of 3,098 persons per square kilometer, placing South Plympton in the upper quartile relative to other locations assessed by AreaSearch. Over the past decade, ending in June 2024, South Plympton has shown resilient growth patterns with a compound annual growth rate of 1.2%, outperforming its SA4 region. Overseas migration contributed approximately 75% of overall population gains during recent periods.

For future projections, 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, the 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, South Plympton is expected to grow by 848 persons to reach 5,712 by 2041, reflecting an increase of 19.2% over the 17-year period.

Residential development activity is slightly higher than average within South Plympton when compared nationally

Based on AreaSearch analysis, South Plympton saw approximately 29 new home approvals annually over the past five financial years from FY-21 to FY-25. This totals an estimated 149 homes. As of FY-26, six approvals have been recorded. On average, 1.8 new residents arrived per year per new home during this period.

This suggests a balanced supply and demand dynamic, with stable market conditions. The average construction cost for new dwellings was $326,000, below the regional average, indicating more affordable housing options. In FY-26, there were $3.0 million in commercial approvals, suggesting limited commercial development focus.

Compared to Greater Adelaide, South Plympton has 13.0% lower construction activity per person but ranks within the 70th percentile nationally. New building activity consists of 62.0% detached dwellings and 38.0% medium and high-density housing, offering options from family homes to compact living. With around 189 people per approval, South Plympton reflects a low-density area. According to the latest AreaSearch quarterly estimate, South Plympton is projected to grow by 932 residents by 2041. Development pace appears reasonable in line with this growth projection, though increasing competition among buyers may arise as population expands.

South Plympton has very high levels of nearby infrastructure activity, ranking in the top 20% nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified a single major project likely affecting this region. Key projects include Tram Grade Separation Projects, specifically the Glenelg Line project, River Torrens to Darlington Project (T2D) involving South Road Resurfacing Works, and Morphettville Racecourse Redevelopment. The following list details those most relevant:.

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 South Plympton has been broadly consistent with national averages

South Plympton has a well-educated workforce with notable representation in essential services sectors. The unemployment rate was 3.8% as of June 2025, which is 0.2% lower than Greater Adelaide's rate of 4.0%.

Employment growth over the past year was estimated at 2.7%. Workforce participation stood at 66.3%, slightly higher than Greater Adelaide's 61.7%. Key industries of employment among residents include health care & social assistance, education & training, and retail trade.

Manufacturing, however, is under-represented with only 5.6% of South Plympton's workforce compared to 7.0% in Greater Adelaide. Employment opportunities locally may be limited as indicated by the count of Census working population vs resident population. During the year to June 2025, employment levels increased by 2.7% and labour force increased by 2.8%, keeping the unemployment rate relatively stable. In contrast, Greater Adelaide experienced employment growth of 2.1% and labour force growth of 2.1%. Jobs and Skills Australia's national employment forecasts from Sep-22 offer further insight into potential future demand within South Plympton. These projections suggest national employment will expand by 6.6% over five years and 14.4% over ten years, with industry-specific growth rates varying significantly. Applying these projections to South Plympton's employment mix suggests local employment should increase by 6.9% over five years and 14.4% over ten years, assuming constant population projections for illustrative purposes.

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

South Plympton had a median taxpayer income of $53,790 and an average of $62,126 in the financial year 2022. These figures were lower than national averages, with Greater Adelaide's median income being $52,592 and average income $64,886. As of September 2025, estimated incomes would be approximately $60,691 (median) and $70,097 (average), based on a 12.83% growth in wages since financial year 2022. Census data shows incomes in South Plympton rank modestly, between the 38th and 50th percentiles for household, family, and personal incomes. Income distribution reveals that 32.8% of South Plympton's population (1,595 individuals) fall within the $1,500 - $2,999 range, consistent with surrounding regions at 31.8%. Housing affordability pressures are severe, with only 83.7% of income remaining, ranking at the 39th percentile. The area's SEIFA income ranking places it in the 5th decile.

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

South Plympton's dwelling structure, as per the latest Census, consisted of 60.9% houses and 39.2% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Adelaide metro's 70.8% houses and 29.2% other dwellings. Home ownership in South Plympton was 31.2%, similar to Adelaide metro, with the rest either mortgaged (36.8%) or rented (32.0%). The median monthly mortgage repayment was $1,700, aligning with Adelaide metro's average. Weekly rent was recorded at $340, compared to Adelaide metro's $330. Nationally, South Plympton's mortgage repayments were lower than the Australian average of $1,863, and rents were less than the national figure of $375.

South Plympton features high concentrations of group households and lone person households, with a lower-than-average median household size

Family households account for 61.8 percent of all households, including 26.4 percent couples with children, 24.2 percent couples without children, and 9.6 percent single parent families. Non-family households constitute the remaining 38.2 percent, with lone person households at 32.6 percent and group households comprising 5.7 percent of the total. The median household size is 2.3 people, which is smaller than the Greater Adelaide average of 2.4.

The educational profile of South Plympton exceeds national averages, with above-average qualification levels and academic performance metrics

South Plympton has a higher proportion of residents with university qualifications than the state average. 36.1% of its residents aged 15 and above hold such qualifications, compared to 25.7% in South Australia as a whole and 28.1% in the SA4 region. Bachelor degrees are the most common at 24.7%, followed by postgraduate qualifications (8.0%) and graduate diplomas (3.4%). Vocational credentials are also prevalent, with 29.3% of residents holding them – this includes advanced diplomas (10.4%) and certificates (18.9%).

Educational participation is high, with 27.1% of residents currently enrolled in formal education. This includes primary education (8.3%), tertiary education (7.4%), and secondary education (5.1%). South Plympton's three schools have a combined enrollment of 1,279 students. The area has above-average socio-educational conditions, with an ICSEA score of 1058. It functions as an education hub, offering 26.3 school places per 100 residents, significantly higher than the regional average of 10.8. This attracts students from surrounding communities.

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

Public transport analysis shows that as of 2021 there are 22 active transport stops operating within South Plympton. These stops offer a mix of bus services. There are 24 individual routes servicing these stops, collectively providing 2,092 weekly passenger trips.

Transport accessibility is rated excellent, with residents typically located 163 meters from the nearest transport stop. Service frequency averages 298 trips per day across all routes, equating to approximately 95 weekly trips per individual stop.

The level of general health in South Plympton is notably higher than the national average with prevalence of common health conditions low among the general population though higher than the nation's average across older, at risk cohorts

South Plympton shows better-than-average health outcomes with lower prevalence of common conditions among its general population compared to national averages.

However, among older cohorts and those at higher risk, prevalence is higher than average. Private health cover stands at approximately 52% of South Plympton's total population (~2,508 people), slightly below the average for SA2 areas. The most prevalent medical conditions are arthritis and mental health issues, affecting 7.6% and 7.2% of residents respectively. A higher proportion, 72.3%, report being free from medical ailments compared to Greater Adelaide's 68.1%. South Plympton has a larger elderly population, with 19.0% of residents aged 65 and over (924 people), which may require more attention than the broader population.

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

South Plympton has a high level of cultural diversity, with 33.3% of its population born overseas and 31.2% speaking a language other than English at home. Christianity is the dominant religion in South Plympton, accounting for 42.8% of the population. However, Hinduism is notably overrepresented, making up 5.6% compared to the regional average of 4.1%.

The top three ancestry groups are English (22.3%), Australian (20.6%), and Other (11.0%). There are also notable differences in the representation of certain ethnic groups: Hungarian at 0.5% vs 0.3%, Polish at 1.0% vs 1.1%, and Greek at 2.8% vs 1.5%.

South Plympton's population is slightly younger than the national pattern

The median age in South Plympton is 37 years, which is lower than Greater Adelaide's average of 39 years and close to the national average of 38 years. The 25-34 age group is notably over-represented in South Plympton at 18.4%, compared to Greater Adelaide's average. Conversely, the 55-64 age group is under-represented at 9.7%. According to post-2021 Census data, the 75-84 age group has increased from 5.4% to 6.2% of the population, while the 55-64 age group has declined from 10.8% to 9.7%. Population forecasts for 2041 indicate significant demographic changes in South Plympton. The 85+ age group is projected to grow by 95%, adding 161 people and reaching a total of 332. The 0-4 age group is expected to grow by 9%, with an increase of 24 residents.