Hewett, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Hewett is more socio-economically advantaged than about 80% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1043, 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.
Hewett at a glance
- Population (2021)
- 2,961
- Median age
- 38
- Median weekly household income
- $2,439
- SEIFA score
- 1043
- Coordinates
- -34.5739, 138.7544
Hewett demographics (2021 Census)
The figures below profile Hewett 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%, 12% of homes are rented, and 15% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 690 | 23% |
| Youth (15–24) | 449 | 15% |
| Young adults (25–44) | 672 | 23% |
| Mid-life (45–64) | 884 | 30% |
| Seniors (65+) | 257 | 9% |
Share of the 2,952 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 237 | 26% |
| Owned with a mortgage | 564 | 62% |
| Rented | 108 | 12% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 918 | 100% |
| Townhouses & semis | 0 | 0% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 918 occupied private dwellings in Hewett.
- Median weekly rent
- $340
- Median monthly mortgage
- $1,733
- Average household size
- 3.2 people
- Median weekly family income
- $2,519
- Median weekly personal income
- $951
Community and culture
- Born overseas
- 429 (15%)
- Speaks a language other than English at home
- 112 (4%)
- Aboriginal and/or Torres Strait Islander
- 36 (1%)
Work and education
- Completed Year 12
- 1,237 (59%)
- Labour-force participation
- 77.5%
- Unemployment rate
- 2.6%
- Employed full-time
- 1,052
- Employed part-time
- 577
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 Hewett
Based on 2014–2023 records, the warmest month in Hewett is January (average daytime high around 30.3°C) and the coolest is July (around 14.3°C). The area receives roughly 498 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 30.3°C | 16.7°C | 31 mm |
| Feb | 28.9°C | 16°C | 22 mm |
| Mar | 26.7°C | 14.7°C | 20 mm |
| Apr | 22.7°C | 12.4°C | 41 mm |
| May | 18°C | 9.6°C | 49 mm |
| Jun | 15.1°C | 7.4°C | 54 mm |
| Jul | 14.3°C | 6.8°C | 56 mm |
| Aug | 14.9°C | 6.8°C | 64 mm |
| Sep | 17.8°C | 8.1°C | 49 mm |
| Oct | 22.2°C | 10.5°C | 43 mm |
| Nov | 24.8°C | 12.4°C | 42 mm |
| Dec | 28.2°C | 14.6°C | 27 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Hewett
Where is Hewett?
Hewett is a suburb of South Australia, Australia.
What is the population of Hewett?
At the 2021 Census, Hewett had a population of about 2,961.
Is Hewett an advantaged area?
Hewett has an ABS SEIFA score of 1043, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 80 out of 100 — more socio-economically advantaged than about 80% of Australian suburbs.
What is the weather like in Hewett?
Hewett has average daytime highs of about 22°C and overnight lows of about 11.3°C, with roughly 498 mm of rain across the year (based on 2014–2023 climate normals).
Does Hewett have high household incomes?
Hewett has one of the highest median weekly household incomes in South Australia — the 14th-highest among suburbs with at least 1,000 residents at the 2021 Census ($2,439 per week).
Where Hewett ranks
Hewett appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
Nearby suburbs in South Australia
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Other hand-written, cited guides — browse all guides.