Plympton Park

Plympton Park lies within the top quartile of areas nationally for population growth performance according to AreaSearch analysis of recent, and medium to long-term trends

The population of Plympton Park is estimated at around 4,296 as of Feb 2026. This reflects an increase of 415 people since the 2021 Census, which reported a population of 3,881 people. The change is inferred from AreaSearch's estimate of the resident population being 4,044 following examination of the latest ERP data release by the ABS in June 2024, along with an additional 22 validated new addresses since the Census date. This level of population equates to a density ratio of 3,580 persons per square kilometer, placing Plympton Park in the upper quartile relative to national locations assessed by AreaSearch. The suburb's growth of 10.7% since the 2021 census exceeded the SA4 region's growth of 7.4%, as well as the state's growth rate. Overseas migration contributed approximately 65.0% of overall population gains during recent periods in Plympton 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, the SA State Government's Regional/LGA projections are adopted, based on 2021 data and adjusted using a method of weighted aggregation of population growth from LGA to SA2 levels. Based on aggregated SA2-level projections, Plympton Park is expected to expand by 733 persons to 2041, reflecting a gain of 13.1% in total over the 17 years.

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

AreaSearch analysis of ABS building approval numbers in Plympton Park shows approximately 23 new homes approved annually over the past five financial years, totalling an estimated 117 homes. As of FY-26, 17 approvals have been recorded. On average, 3.2 new residents per year arrive for each dwelling constructed between FY-21 and FY-25, indicating supply lagging demand and potential buyer competition, with new properties averaging $373,000 in construction cost. Commercial development approvals in FY-26 totalled $1.1 million.

Compared to Greater Adelaide, Plympton Park has 17.0% less building activity per person but ranks among the 81st percentile nationally, with recent acceleration in building activity. New building activity comprises 76.0% standalone homes and 24.0% townhouses or apartments, maintaining the area's suburban character. With around 134 people per dwelling approval, Plympton Park exhibits growth area characteristics.

By 2041, AreaSearch estimates an increase of 562 residents. Current construction levels are expected to meet demand adequately, creating favourable conditions for buyers and potentially exceeding current forecasted growth.

Plympton Park has limited levels of nearby infrastructure activity, ranking in the 19thth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified one major project potentially affecting this region: Tram Grade Separation Projects, Morphettville Racecourse Redevelopment, Mooringe Avenue Development in North Plympton, and River Torrens to Darlington (T2D) Project are key initiatives. The following details projects likely most relevant.

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Employment performance in Plympton Park exceeds national averages across key labour market indicators

Plympton Park has an educated workforce with prominent representation in essential services sectors. Its unemployment rate was 3.4% as of September 2025, compared to Greater Adelaide's 3.9%. Employment growth over the past year was estimated at 3.4%, based on AreaSearch aggregation of statistical area data.

Residents' employment participation rate is high at 73.6%, above Greater Adelaide's 66.4%. Census responses indicate that 10.1% of residents work from home, though Covid-19 lockdown impacts should be considered. Major industries for local employment are health care & social assistance, retail trade, and education & training, while manufacturing employs only 5.0% of workers compared to Greater Adelaide's 7.0%.

Employment levels increased by 3.4% during the year to September 2025, with a corresponding decrease in unemployment rate by 0.1 percentage points. Jobs and Skills Australia forecasts national employment growth at 6.6% over five years and 13.7% over ten years. Applying these projections to Plympton Park's employment mix suggests local employment could increase by 7.0% over five years and 14.4% over ten years, based on a simple weighting extrapolation for illustrative purposes.

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

In AreaSearch's latest postcode level ATO data released for financial year ending June 2023, Plympton Park's median income among taxpayers was $56,521 with an average of $70,160. This is above the national average and compares to Greater Adelaide's median of $54,808 and average of $66,852. Based on Wage Price Index growth of 8.8% from June 2023 to September 2025, current estimates would be approximately $61,495 (median) and $76,334 (average). According to Census 2021 income data, household, family, and personal incomes in Plympton Park are around the 50th percentile nationally. Income distribution shows that 33.9% of individuals earn between $1,500 - $2,999, similar to regional levels at 31.8%. Housing affordability pressures are severe with only 83.3% of income remaining, ranking at the 45th percentile. Plympton Park's SEIFA income ranking places it in the 5th decile.

Plympton Park is characterized by a predominantly suburban housing profile, with a higher proportion of rental properties than the broader region

Dwelling structure in Plympton Park, as evaluated at the latest Census, comprised 70.1% houses and 30.0% other dwellings. In comparison, Adelaide metro had 75.2% houses and 24.9% other dwellings. Home ownership in Plympton Park was 24.3%, with mortgaged dwellings at 36.0% and rented ones at 39.7%. The median monthly mortgage repayment was $1,820, higher than Adelaide metro's $1,562. Median weekly rent in Plympton Park was $320, matching Adelaide metro's figure but lower than the national average of $375. Nationally, Plympton Park's median monthly mortgage repayment was below the Australian average of $1,863.

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

Family households constitute 64.4% of all households, including 28.3% couples with children, 24.4% couples without children, and 9.7% single parent families. Non-family households make up the remaining 35.6%, with lone person households at 30.3% and group households comprising 5.3%. The median household size is 2.4 people, which is smaller than the Greater Adelaide average of 2.5.

Plympton Park demonstrates exceptional educational outcomes, ranking among the top 5% of areas nationally based on AreaSearch's comprehensive analysis of qualification and performance metrics

The area's educational profile is notable regionally, with university qualification rates at 35.1% among residents aged 15+, exceeding the South African average of 25.7% and that of the SA4 region at 28.1%. Bachelor degrees are most prevalent at 24.5%, followed by postgraduate qualifications at 7.5% and graduate diplomas at 3.1%. Vocational credentials are prominent, with 29.2% of residents aged 15+ holding such qualifications - advanced diplomas at 10.2% and certificates at 19.0%.

Educational participation is high, with 28.1% of residents currently enrolled in formal education. This includes 8.3% in primary education, 7.8% in tertiary education, and 4.9% pursuing secondary education.

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

Plympton Park has 24 active public transport stops offering a mix of lightrail and bus services. These stops are served by 18 individual routes, providing a total of 880 weekly passenger trips. The area's transport accessibility is rated excellent with residents typically located 137 meters from the nearest stop. Most residents commute outward due to its residential nature. Car remains the dominant mode at 81%, while bus usage stands at 8%. Vehicle ownership averages 1.2 per dwelling, below the regional average.

According to the 2021 Census, a relatively low 10.1% of residents work from home, which may reflect COVID-19 conditions. Service frequency averages 125 trips per day across all routes, equating to approximately 36 weekly trips per individual stop.

Health performance in Plympton Park is lower than average with common health conditions somewhat prevalent across the board, though to a considerably higher degree among older age cohorts

Plympton Park faces significant health challenges, according to AreaSearch's assessment.

Common health conditions are somewhat prevalent across all age groups but more so among older cohorts. Approximately 55% of the total population (~2,350 people) have private health cover. The most common medical conditions are mental health issues and asthma, affecting 8.3% and 7.4% of residents respectively. 71.3% of residents declare themselves completely clear of medical ailments, compared to 67.9% across Greater Adelaide. Health outcomes among the working-age population are typical. The area has 13.3% of residents aged 65 and over (571 people), lower than Greater Adelaide's 19.3%. Health outcomes among seniors present some challenges but rank lower nationally than the broader population.

Plympton Park 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

Plympton Park had a higher cultural diversity than most local markets, with 30.7% of its population born overseas and 28.1% speaking a language other than English at home. Christianity was the predominant religion in Plympton Park, accounting for 38.4% of the population. However, Hinduism showed significant overrepresentation, comprising 7.1% compared to the regional average of 2.8%.

In terms of ancestry, the top three groups were English (25.0%), Australian (21.8%), and Other (11.7%). Notable differences existed in the representation of certain ethnic groups: Polish was equally represented at 1.0%, Welsh slightly higher at 0.7% compared to regional averages, and Serbian also equally represented at 0.4%.

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

The median age in Plympton Park is 36, which is slightly below Greater Adelaide's average of 39 and also below the Australian median of 38. Compared to Greater Adelaide, Plympton Park has a higher proportion of residents aged 25-34 at 18.3%, but fewer residents aged 65-74 at 7.7%. Between the 2021 Census and now, the 75 to 84 age group has increased from 3.9% to 4.6% of the population, while the 85+ cohort has decreased from 2.1% to 1.0%. By 2041, Plympton Park's age composition is expected to change notably. The 45 to 54 group is projected to grow by 26%, adding 129 people and reaching 632 from 502. The 0 to 4 group is expected to grow more modestly at 7%, with an increase of 21 residents.