Plympton

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

Based on analysis of ABS population updates for the broader area, as of Nov 2025, the estimated population of Plympton is around 5,746. This reflects an increase of 287 people since the 2021 Census, which reported a population of 5,459. The change is inferred from AreaSearch's estimation of the resident population at 5,726 following examination of the latest ERP data release by the ABS in June 2024, along with an additional 72 validated new addresses since the Census date. This results in a density ratio of 3,283 persons per square kilometer, placing Plympton in the upper quartile relative to national locations assessed by AreaSearch. Over the past decade, Plympton has shown resilient growth patterns with a compound annual growth rate of 1.7%, outpacing the SA3 area. Population growth was primarily driven by overseas migration, contributing approximately 97.0% of overall population gains during recent periods.

AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered and years post-2032, the SA State Government's Regional/LGA projections by age category are adopted, based on 2021 data and released in 2023, with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Anticipating future population dynamics, an above median population growth is projected for the suburb, with AreaSearch expecting it to increase by 1,470 persons to 2041 based on aggregated SA2-level projections, reflecting an overall increase of 27.6% over the 17-year period.

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

AreaSearch analysis of ABS building approval numbers shows Plympton has around 30 residential properties granted approval per year over the past five financial years, totalling an estimated 150 homes. As of FY26, 14 approvals have been recorded. This results in approximately 3.3 new residents per year for every home built between FY21 and FY25. The average construction cost value of new properties is $379,000.

In FY26, there have been $5.8 million in commercial approvals. Compared to Greater Adelaide, Plympton has 18.0% less new development per person but ranks among the 70th percentile nationally. New building activity comprises 39.0% standalone homes and 61.0% medium and high-density housing. The location has approximately 190 people per dwelling approval, indicating a low density market.

Population forecasts estimate Plympton will gain 1,586 residents by 2041. At current development rates, housing supply may struggle to match population growth.

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 three projects that could affect this region. Notable projects include Tram Grade Separation Projects, Mooringe Avenue Development in North Plympton, Tram Grade Separation Project along the Glenelg Line, 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.

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Employment conditions in Plympton demonstrate exceptional strength compared to most Australian markets

Plympton has an educated workforce with prominent representation in essential services sectors. Its unemployment rate was 2.6% in the past year, with estimated employment growth of 2.7%.

As of June 2025, 3,756 residents are employed, while the unemployment rate is 1.4% below Greater Adelaide's rate of 4.0%. Workforce participation is high at 72.2%, compared to Greater Adelaide's 61.7%. Dominant employment sectors include health care & social assistance, accommodation & food, and retail trade. Health care & social assistance has particularly notable concentration, with employment levels at 1.3 times the regional average.

Manufacturing shows lower representation at 4.8% versus the regional average of 7.0%. Employment opportunities appear limited locally, 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 2.9%, causing the unemployment rate to rise by 0.2 percentage points. 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 suggest potential future demand within Plympton. These projections estimate national employment expansion by 6.6% over five years and 13.7% over ten years, with varying growth rates between industry sectors. Applying these projections to Plympton's employment mix suggests local employment should increase by 7.1% over five years and 14.8% over ten years.

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

AreaSearch's latest postcode level ATO data for financial year 2022 shows Plympton's median income among taxpayers is $55,944. The average income in Plympton is $66,723. This places it above the national average. In comparison, Greater Adelaide has a median income of $52,592 and an average income of $64,886. Based on Wage Price Index growth since financial year 2022, current estimates for Plympton's median income would be approximately $63,122 as of September 2025, with the average estimated at $75,284 by that date. According to 2021 Census figures, personal income in Plympton ranks at the 58th percentile ($843 weekly), while household income ranks at the 41st percentile. In terms of earnings profile, 35.9% of the population (2,062 individuals) fall within the $1,500 - 2,999 income range, which is consistent with broader trends across regional levels showing 31.8% in the same category. Housing affordability pressures are severe in Plympton, with only 84.2% of income remaining after housing costs, ranking at the 42nd percentile. The area's SEIFA income ranking places it in the 5th decile.

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

In Plympton, as per the latest Census, 51.4% of dwellings were houses, with the remaining 48.7% being semi-detached, apartments, or other types. This is compared to Adelaide metro's 63.9% houses and 36.2% other dwellings. Home ownership in Plympton stood at 24.2%, with mortgaged dwellings at 29.7% and rented ones at 46.1%. The median monthly mortgage repayment was $1,662, lower than Adelaide metro's $1,745. The median weekly rent in Plympton was $300, compared to Adelaide metro's $310. Nationally, Plympton's mortgage repayments were below the Australian average of $1,863, and rents were lower than the national figure of $375.

Plympton features high concentrations of group households and lone person households, with a fairly typical median household size

Family households account for 61.2% of all households, including 22.6% couples with children, 27.7% couples without children, and 8.5% single parent families. Non-family households constitute the remaining 38.8%, with lone person households at 31.5% and group households comprising 7.3%. The median household size is 2.3 people, which aligns with the Greater Adelaide average.

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

Educational attainment in Plympton is notably high, with 41.2% of residents aged 15 and above holding university qualifications. This compares to 25.7% in South Australia (SA) and 28.9% in Greater Adelaide. Bachelor degrees are the most common at 26.8%, followed by postgraduate qualifications (11.1%) and graduate diplomas (3.3%). Vocational credentials are also prevalent, with 26.9% of residents aged 15 and above holding such qualifications – advanced diplomas at 11.2% and certificates at 15.7%.

Educational participation is high, with 28.6% of residents currently enrolled in formal education. This includes 10.2% in tertiary education, 6.6% in primary education, and 4.8% pursuing secondary education. Plympton's four schools have a combined enrollment of 1,620 students. The area has above-average socio-educational conditions (ICSEA: 1057). It functions as an education hub with 28.2 school places per 100 residents, significantly higher than the regional average of 13.8, attracting students from surrounding communities.

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

Plympton has 29 operational public transport stops, all of which are bus services. These stops are served by 30 unique routes that facilitate a total of 3,021 weekly passenger trips. The average distance from residents to the nearest transport stop is 134 meters, indicating excellent accessibility.

On average, there are 431 daily trips across all routes, which translates to about 104 weekly trips per individual stop.

Plympton's residents boast exceedingly positive health performance metrics with both young and old age cohorts seeing low prevalence of common health conditions

Plympton shows excellent health outcomes across all age groups, with low prevalence of common health conditions.

Private health cover stands at approximately 53% (~3,066 people), slightly higher than the average SA2 area. Mental health issues and arthritis are the most prevalent conditions, affecting 7.4% and 6.0% of residents respectively. Overall, 75.4% report no medical ailments, compared to 70.9% in Greater Adelaide. The elderly population (aged 65 and over) comprises 11.3% (649 people), lower than the 17.6% in Greater Adelaide. Seniors' health outcomes align with those of the general population.

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

Plympton has a high level of cultural diversity, with 41.7 percent of its population born overseas and 40.4 percent speaking a language other than English at home. Christianity is the predominant religion in Plympton, accounting for 38.1 percent of the population. However, Hinduism is notably overrepresented, comprising 12.6 percent of the population compared to the Greater Adelaide average of 5.5 percent.

In terms of ancestry, the top three groups are English at 20.5 percent, Australian at 18.1 percent, and Other at 17.3 percent, which is higher than the regional average of 12.3 percent. Some ethnic groups have notable representation in Plympton: Greek at 4.0 percent (compared to 6.1 percent regionally), Indian at 5.7 percent (compared to 3.7 percent), and Hungarian at 0.3 percent (equal to the regional average).

Plympton hosts a young demographic, positioning it in the bottom quartile nationwide

Plympton's median age of 33 years is younger than Greater Adelaide's 39 and the national average of 38. The 25-34 age group constitutes 26.4% of Plympton's population compared to Greater Adelaide's figure, while the 5-14 cohort makes up 7.8%. This concentration of the 25-34 age group is higher than the national average of 14.5%. Between 2021 and the present day, the proportion of the population in the 25 to 34 age group has increased from 25.0% to 26.4%, while the 85+ cohort has declined from 2.3% to 1.4%. By 2041, Plympton's population is projected to see significant demographic changes. The 25-34 age group is expected to increase by 348 people (23%), rising from 1,516 to 1,865.