North Plympton

North 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, North Plympton's population is estimated at around 3,936 people. This reflects an increase of 326 people since the 2021 Census, which reported a population of 3,610 people. The growth is inferred from AreaSearch's estimate of 3,917 residents following examination of the latest ERP data release by the ABS in June 2024 and an additional 42 validated new addresses since the Census date. This results in a population density ratio of 2,589 persons per square kilometer, placing North Plympton in the upper quartile relative to national locations assessed by AreaSearch. The suburb's growth rate of 9.0% since the 2021 census exceeded both the state average of 7.1% and the SA3 area, marking it as a growth leader in the region. Overseas migration contributed 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 by this data and years post-2032, the SA State Government's Regional/LGA projections are adopted with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Considering projected demographic shifts, North Plympton is forecasted to experience significant population increase in the top quartile of Australian statistical areas. Based on aggregated SA2-level projections, the suburb is expected to grow by 1,131 persons to 2041, reflecting an increase of 25.9% in total over the 17 years.

Recent residential development output has been above average within North Plympton when compared nationally

North Plympton has seen approximately 35 new homes approved annually, with 176 homes approved between financial years FY21 to FY25 inclusive. In FY26 up to May, 11 homes have been approved. This results in an average of 1.4 new residents per year per dwelling constructed over the past five financial years.

The market shows balance between supply and demand, supporting stable conditions, with new homes being built at an average expected construction cost value of $379,000. In FY26 up to May, $26.2 million in commercial approvals have been registered, indicating moderate levels of commercial development. Compared to Greater Adelaide, North Plympton has seen 46.0% more development per person over the past five years. This maintains good buyer choice while supporting existing property values, although development activity has moderated recently. New development consists of 41.0% detached dwellings and 59.0% attached dwellings, reflecting a shift towards compact living to offer affordable entry pathways for downsizers, investors, and first-time purchasers.

With around 133 people per dwelling approval, North Plympton exhibits characteristics of a growth area. According to the latest AreaSearch quarterly estimate, North Plympton is expected to grow by 1,019 residents through to 2041. Current construction rates appear balanced with future demand, fostering steady market conditions without excessive price pressure.

North Plympton has strong levels of nearby infrastructure activity, ranking in the top 30% nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified one major project expected to affect the region: Tram Grade Separation Projects, specifically the Glenelg Line project. Other notable initiatives include Project Flight - Adelaide Airport Terminal and Infrastructure Upgrade, and North South Corridor. The following list details those projects most likely to influence the area.

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The labour market in North Plympton shows considerable strength compared to most other Australian regions

North Plympton has a well-educated workforce with essential services sectors being prominent. The unemployment rate in the area is 2.5%, which is lower than Greater Adelaide's rate of 4.0%.

Over the past year, ending June 2025, there was an estimated employment growth of 3.4%. As of June 2025, 2,077 residents are employed with a workforce participation rate of 59.6%, slightly lower than Greater Adelaide's 61.7%. The dominant employment sectors among residents include health care & social assistance, retail trade, and education & training, while manufacturing employs just 5.5% of local workers, below Greater Adelaide's 7.0%.

Many residents commute elsewhere for work based on Census working population data compared to the local population count. Between June 2024 and June 2025, employment levels increased by 3.4% while labour force increased by 3.5%, causing a slight rise in unemployment rate of 0.2 percentage points. In comparison, Greater Adelaide saw employment grow by 2.1%, labour force expand by 2.1%, and unemployment rise marginally during the same period. Jobs and Skills Australia's national employment forecasts from Sep-22 suggest potential future demand within North Plympton. These projections estimate national employment growth of 6.6% over five years and 13.7% over ten years, with varying rates between industry sectors. Applying these industry-specific projections to North Plympton's employment mix suggests local employment should increase by 6.9% over five years and 14.3% over ten years.

The area's income profile falls below national averages based on AreaSearch analysis

North Plympton's median income among taxpayers was $51,564 in financial year 2022. The average income stood at $61,499 during the same period. These figures are below Greater Adelaide's median and average incomes of $52,592 and $64,886 respectively. By September 2025, estimated median and average incomes in North Plympton would be approximately $58,180 and $69,389 based on a 12.83% growth since financial year 2022. According to census data, household, family, and personal incomes all rank modestly in North Plympton, between the 44th and 44th percentiles. Income analysis shows that 35.8% of locals (1,409 people) fall into the $1,500 - 2,999 income category, reflecting patterns seen in the surrounding region where 31.8% similarly occupy this range. Housing affordability pressures are severe, with only 83.7% of income remaining after housing costs, ranking at the 45th percentile. The area's SEIFA income ranking places it in the 6th decile.

North Plympton displays a diverse mix of dwelling types, with ownership patterns similar to the broader region

In North Plympton, as per the latest Census, 69.9% of dwellings were houses with the remaining 30.0% 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 North Plympton stood at 30.4%, similar to Adelaide metro. Dwellings were either mortgaged (37.4%) or rented (32.2%). The median monthly mortgage repayment was $1,777, higher than Adelaide metro's average of $1,745. Median weekly rent in North Plympton was $360 compared to Adelaide metro's $310. Nationally, these figures are lower than the Australian averages of $1,863 for mortgage repayments and $375 for rents.

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

Family households constitute 60.6% of all households, including 27.0% couples with children, 22.3% couples without children, and 10.0% single parent families. Non-family households comprise the remaining 39.4%, with lone person households at 33.6% and group households making up 5.6%. The median household size is 2.3 people, which aligns with the Greater Adelaide average.

North Plympton 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 at 31.6% among residents aged 15+, surpassing South Australia's average of 25.7%. Bachelor degrees are the most prevalent at 22.0%, followed by postgraduate qualifications (7.4%) and graduate diplomas (2.2%). Vocational credentials are also prominent, with 28.3% of residents aged 15+ holding such qualifications – advanced diplomas at 10.4% and certificates at 17.9%.

Educational participation is high, with 25.0% of residents currently enrolled in formal education, including 7.7% in tertiary education, 6.6% in primary education, and 4.8% pursuing secondary education. Educational facilities seem to be located outside the immediate catchment boundaries, requiring families to access schools in neighboring areas.

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

North Plympton has 20 active public transport stops, all of which are bus stops. These stops are served by 14 different routes that together facilitate 902 weekly passenger trips. The average distance from a resident's home to the nearest transport stop is 178 meters.

On average, there are 128 daily trips across all routes, equating to approximately 45 weekly trips per individual stop.

Health performance in North Plympton is well below average with considerably higher than average prevalence of common health conditions and to an even higher degree among older age cohorts

North Plympton faces significant health challenges, with a notably higher prevalence of common health conditions compared to average.

This is particularly true for older age cohorts. Private health cover stands at approximately 51% of the total population (~2,019 people), slightly lower than the average SA2 area. Mental health issues and arthritis are the most prevalent medical conditions in the area, affecting 8.7% and 8.0% of residents respectively. However, 65.6% of residents report being completely clear of medical ailments, compared to 70.9% across Greater Adelaide. North Plympton has a higher proportion of seniors, with 24.8% of residents aged 65 and over (976 people), compared to 17.6% in Greater Adelaide. Health outcomes among seniors require more attention than the broader population.

North Plympton 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

North Plympton's population showed high cultural diversity, with 33.1% born overseas and 29.8% speaking a language other than English at home. Christianity was the predominant religion, accounting for 45.8%. The 'Other' religious category made up 3.1%, similar to Greater Adelaide's 3.1%.

Ancestry-wise, English (22.0%), Australian (21.3%), and Other (13.3%) were the top groups. Some ethnic groups had notable differences: Greeks at 4.9% (vs regional 6.1%), Poles at 1.0% (vs 0.9%), and Serbians at 0.5% (vs 0.5%).

North Plympton's median age exceeds the national pattern

North Plympton's median age is 39 years, matching Greater Adelaide's average of 39 and closely aligned with Australia's median of 38. The 85+ cohort is over-represented at 8.9% compared to Greater Adelaide's average, while the 5-14 year-olds are under-represented at 8.2%. This 85+ concentration is higher than the national average of 2.2%. According to the 2021 Census, the 25-34 age group has increased from 16.3% to 18.4% of North Plympton's population. Demographic projections suggest significant changes in North Plympton's age profile by 2041, with the 85+ cohort showing the strongest growth at 62%, adding 215 residents to reach a total of 566.