South Plympton, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Around the national middle
South Plympton is more socio-economically advantaged than about 56% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 998, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
South Plympton at a glance
- Population (2021)
- 4,721
- Median age
- 37
- Median weekly household income
- $1,552
- SEIFA score
- 998
- Coordinates
- -34.9736, 138.5601
South Plympton demographics (2021 Census)
The figures below profile South Plympton using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is young adults (25–44) at 32%, 30% of homes are rented, and 33% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 745 | 16% |
| Youth (15–24) | 539 | 11% |
| Young adults (25–44) | 1,533 | 32% |
| Mid-life (45–64) | 1,059 | 22% |
| Seniors (65+) | 843 | 18% |
Share of the 4,719 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 578 | 29% |
| Owned with a mortgage | 679 | 35% |
| Rented | 589 | 30% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 1,197 | 61% |
| Townhouses & semis | 337 | 17% |
| Flats & apartments | 430 | 22% |
Tenure and dwelling shares are of the roughly 1,971 occupied private dwellings in South Plympton.
- Median weekly rent
- $340
- Median monthly mortgage
- $1,700
- Average household size
- 2.3 people
- Median weekly family income
- $2,054
- Median weekly personal income
- $805
Community and culture
- Born overseas
- 1,536 (33%)
- Speaks a language other than English at home
- 1,432 (31%)
- Aboriginal and/or Torres Strait Islander
- 56 (1%)
Work and education
- Completed Year 12
- 2,573 (67%)
- Labour-force participation
- 66.4%
- Unemployment rate
- 5.9%
- Employed full-time
- 1,437
- Employed part-time
- 917
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in South Plympton
Based on 2014–2023 records, the warmest month in South Plympton is January (average daytime high around 27.9°C) and the coolest is July (around 14°C). The area receives roughly 711 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27.9°C | 17.5°C | 29 mm |
| Feb | 26.5°C | 17°C | 29 mm |
| Mar | 24.7°C | 16°C | 20 mm |
| Apr | 21.4°C | 14°C | 51 mm |
| May | 17.3°C | 11.7°C | 86 mm |
| Jun | 14.8°C | 9.6°C | 100 mm |
| Jul | 14°C | 8.9°C | 104 mm |
| Aug | 14.7°C | 8.8°C | 95 mm |
| Sep | 17.2°C | 10.2°C | 62 mm |
| Oct | 20.5°C | 11.9°C | 52 mm |
| Nov | 22.7°C | 13.6°C | 52 mm |
| Dec | 25.6°C | 15.6°C | 31 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about South Plympton
Where is South Plympton?
South Plympton is a suburb of South Australia, Australia.
What is the population of South Plympton?
At the 2021 Census, South Plympton had a population of about 4,721.
Is South Plympton an advantaged area?
South Plympton has an ABS SEIFA score of 998, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 56 out of 100 — more socio-economically advantaged than about 56% of Australian suburbs.
What is the weather like in South Plympton?
South Plympton has average daytime highs of about 20.6°C and overnight lows of about 12.9°C, with roughly 711 mm of rain across the year (based on 2014–2023 climate normals).
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