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 ABS population updates and AreaSearch's analysis, as of November 2025, Plympton's estimated population is around 6,146. This reflects a growth of 687 people since the 2021 Census, which reported a population of 5,459. The change was inferred from AreaSearch's estimate of 5,791 residents following examination of ABS's latest ERP data release in June 2024, along with an additional 72 validated new addresses since the Census date. This results in a density ratio of 3,512 persons per square kilometer, placing Plympton in the upper quartile nationally according to AreaSearch assessments. The area's 12.6% growth since the 2021 census exceeded both state (8.7%) and metropolitan averages. Overseas migration contributed approximately 97.0% of overall population gains during recent periods.

For projections, AreaSearch adopts ABS/Geoscience Australia data 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 are used, adjusted employing weighted aggregation from LGA to SA2 levels based on 2021 data released in 2023. Future population dynamics anticipate an above median growth for statistical areas analysed by AreaSearch, with Plympton expected to increase by 1,480 persons to 2041, reflecting a total increase of 19.5% over the 17 years.

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

AreaSearch analysis of ABS building approval numbers in Plympton shows around 32 residential properties granted approval per year over the past five financial years. This totals an estimated 163 homes from FY-21 to FY-25. As of FY-26, 19 approvals have been recorded. On average, each home built accommodates three new residents annually during this period.

This results in demand significantly exceeding supply, typically leading to price growth and increased buyer competition. The average construction value for new properties is $379,000, indicating a focus on the premium segment. In FY-26, there have been $18.5 million in commercial approvals, suggesting balanced commercial development activity. Compared to Greater Adelaide, Plympton records 11.0% less building activity per person but ranks among the 75th percentile nationally.

New building activity comprises 41.0% standalone homes and 59.0% medium and high-density housing, promoting affordability for downsizers, investors, and first-home buyers. Plympton has approximately 163 people per dwelling approval, suggesting an expanding market. Population forecasts indicate a gain of 1,196 residents by 2041, with building activity keeping pace with growth projections despite potential heightened competition as the population grows.

Plympton has emerging levels of nearby infrastructure activity, ranking in the 31stth percentile nationally

Three projects are identified by AreaSearch as potentially impacting the area: Mooringe Avenue Development in North Plympton, Tram Grade Separation Projects on the Glenelg Line, and Morphettville Racecourse Redevelopment.

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Employment performance in Plympton ranks among the strongest 15% of areas evaluated nationally

Plympton's workforce is highly educated with strong representation in essential services sectors. The unemployment rate was 2.4% as of September 2025, lower than Greater Adelaide's 3.9%.

Employment grew by an estimated 4.1% over the past year. As of September 2025, 3808 residents were employed, with a participation rate of 72.2%, higher than Greater Adelaide's 61.7%. Dominant sectors include health care & social assistance (1.3 times regional average), accommodation & food services, and retail trade. Manufacturing is underrepresented at 4.8% compared to the regional average of 7.0%.

Employment opportunities appear limited locally based on Census data. Between September 2024 and 2025, employment levels increased by 4.1%, labour force by 3.9%, reducing unemployment by 0.1 percentage points. State-level data from 25-Nov-25 shows SA employment grew by 1.19% year-on-year, with an unemployment rate of 4.0%. National forecasts project national employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Plympton's employment mix suggests local employment could increase by 7.1% in five years and 14.8% in 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 2023 indicates Plympton's median income among taxpayers is $55,944. The average income in the suburb is $66,723. Nationally, the median income is higher at $61,820 and the average is $83,173. In Greater Adelaide, the median income is $54,808 with an average of $66,852. Based on Wage Price Index growth of 8.8% since financial year 2023, current estimates for Plympton would be approximately $60,867 (median) and $72,595 (average) by September 2025. According to the 2021 Census, personal income in Plympton ranks at the 58th percentile ($843 weekly), while household income is at the 41st percentile. In terms of earnings profile, 35.9% of the population (2,206 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, 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's dwelling structure, as per the latest Census data, houses constituted 51.4%, with other dwellings (semi-detached, apartments, 'other') accounting for 48.7%. In comparison, Adelaide metro had 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, below Adelaide metro's average of $1,745. The median weekly rent in Plympton was $300, compared to Adelaide metro's $310. Nationally, Plympton's mortgage repayments were lower than the Australian average of $1,863, while rents were substantially below 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 make up 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 matches 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+ holding university qualifications compared to state averages of 25.7% and Greater Adelaide's 28.9%. Bachelor degrees are the most common at 26.8%, followed by postgraduate qualifications at 11.1% and graduate diplomas at 3.3%. Vocational credentials are also prevalent, with 26.9% of residents aged 15+ holding such qualifications, including advanced diplomas (11.2%) and certificates (15.7%). Educational participation is significant in Plympton, with 28.6% of residents currently enrolled in formal education, comprising 10.2% in tertiary education, 6.6% in primary education, and 4.8% pursuing secondary education.

Educational participation is notably 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.

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

Transport analysis conducted in Plympton shows 26 active public transport stops operating within the area as of January 2021. These stops serve a mix of bus routes, totalling 33 individual routes. The combined weekly passenger trips facilitated by these routes amount to 3,277.

Residential accessibility to transport is rated excellent, with residents on average located 141 meters from the nearest stop. Service frequency across all routes averages 468 trips per day, equating to approximately 126 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's health outcomes show excellent results across all age groups.

Both younger and older residents have a low prevalence of common health conditions. The area has a private health cover rate of approximately 53% (around 3,280 people), which is higher than the average SA2 area. Mental health issues are the most prevalent condition, affecting 7.4% of residents, followed by arthritis at 6.0%. About 75.4% of residents report no medical ailments, compared to 70.9% in Greater Adelaide. Plympton has 11.3% of its population aged 65 and over (694 people), lower than the 17.6% in Greater Adelaide. Despite this, health outcomes among seniors are strong, mirroring 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% of its population born overseas and 40.4% speaking a language other than English at home. Christianity is the predominant religion in Plympton, comprising 38.1% of the population. Hinduism is overrepresented in Plympton compared to Greater Adelaide, making up 12.6% of the population versus an average of 5.5%.

The top three ancestry groups are English (20.5%), Australian (18.1%), and Other (17.3%), with Other being substantially higher than the regional average of 12.3%. Notable divergences exist in the representation of certain ethnic groups, including Greek at 4.0% compared to 6.1% regionally, Indian at 5.7% versus 3.7%, and Hungarian at 0.3% versus 0.3%.

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

Plympton's median age of 33 years is significantly younger than Greater Adelaide's at 39 years and the national average of 38 years. The 25-34 age group makes up a strong 26.3% of Plympton's population, compared to Greater Adelaide's percentage, while the 5-14 cohort is less prevalent at 7.8%. This concentration of the 25-34 age group is notably higher than the national average of 14.5%. Between 2021 and the present day, the 25-34 age group has increased from 25.0% to 26.3% of Plympton's population. Conversely, the 85+ cohort has decreased from 2.3% to 1.4%. Population forecasts for the year 2041 suggest substantial demographic changes in Plympton. The 25-34 age group is projected to increase significantly, with an addition of 252 people (a 16% rise) from 1,616 to 1,869 individuals.