Summertown, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Summertown is more socio-economically advantaged than about 93% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1088, 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.
Summertown at a glance
- Population (2021)
- 752
- Median age
- 43
- Median weekly household income
- $2,258
- SEIFA score
- 1088
- Coordinates
- -34.9597, 138.7265
Summertown demographics (2021 Census)
The figures below profile Summertown 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 mid-life (45–64) at 30%, 6% of homes are rented, and 14% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 143 | 19% |
| Youth (15–24) | 89 | 12% |
| Young adults (25–44) | 162 | 22% |
| Mid-life (45–64) | 224 | 30% |
| Seniors (65+) | 134 | 18% |
Share of the 752 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 103 | 43% |
| Owned with a mortgage | 117 | 49% |
| Rented | 14 | 6% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 236 | 98% |
| Townhouses & semis | 5 | 2% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 241 occupied private dwellings in Summertown.
- Median weekly rent
- $365
- Median monthly mortgage
- $2,167
- Average household size
- 2.9 people
- Median weekly family income
- $2,349
- Median weekly personal income
- $876
Community and culture
- Born overseas
- 102 (14%)
- Speaks a language other than English at home
- 43 (6%)
- Aboriginal and/or Torres Strait Islander
- 6 (1%)
Work and education
- Completed Year 12
- 397 (69%)
- Labour-force participation
- 64.5%
- Unemployment rate
- 2.8%
- Employed full-time
- 195
- Employed part-time
- 173
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 Summertown
Based on 2014–2023 records, the warmest month in Summertown is January (average daytime high around 29.7°C) and the coolest is July (around 14.4°C). The area receives roughly 732 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 29.7°C | 17°C | 34 mm |
| Feb | 28.2°C | 16.4°C | 32 mm |
| Mar | 26°C | 15.4°C | 23 mm |
| Apr | 22.1°C | 13.5°C | 54 mm |
| May | 17.7°C | 11.2°C | 83 mm |
| Jun | 15.1°C | 9.3°C | 91 mm |
| Jul | 14.4°C | 8.5°C | 102 mm |
| Aug | 15.3°C | 8.4°C | 91 mm |
| Sep | 18°C | 9.7°C | 69 mm |
| Oct | 21.9°C | 11.5°C | 59 mm |
| Nov | 24.1°C | 13°C | 57 mm |
| Dec | 27.3°C | 15°C | 37 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Summertown
Where is Summertown?
Summertown is a suburb of South Australia, Australia.
What is the population of Summertown?
At the 2021 Census, Summertown had a population of about 752.
Is Summertown an advantaged area?
Summertown has an ABS SEIFA score of 1088, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 93 out of 100 — more socio-economically advantaged than about 93% of Australian suburbs.
What is the weather like in Summertown?
Summertown has average daytime highs of about 21.7°C and overnight lows of about 12.4°C, with roughly 732 mm of rain across the year (based on 2014–2023 climate normals).
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