Somerville (WA), WA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Somerville (WA) is more socio-economically advantaged than about 80% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1042, 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.
Somerville (WA) at a glance
- Population (2021)
- 4,165
- Median age
- 33
- Median weekly household income
- $2,996
- SEIFA score
- 1042
- Coordinates
- -30.7667, 121.4545
Somerville (WA) demographics (2021 Census)
The figures below profile Somerville (WA) 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 31%, 37% of homes are rented, and 28% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 1,010 | 24% |
| Youth (15–24) | 526 | 13% |
| Young adults (25–44) | 1,297 | 31% |
| Mid-life (45–64) | 1,084 | 26% |
| Seniors (65+) | 251 | 6% |
Share of the 4,168 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 208 | 16% |
| Owned with a mortgage | 592 | 44% |
| Rented | 493 | 37% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 971 | 72% |
| Townhouses & semis | 288 | 21% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 1,342 occupied private dwellings in Somerville (WA).
- Median weekly rent
- $330
- Median monthly mortgage
- $2,123
- Average household size
- 2.8 people
- Median weekly family income
- $3,328
- Median weekly personal income
- $1,431
Community and culture
- Born overseas
- 1,075 (28%)
- Speaks a language other than English at home
- 623 (17%)
- Aboriginal and/or Torres Strait Islander
- 202 (5%)
Work and education
- Completed Year 12
- 1,494 (49%)
- Labour-force participation
- 75.1%
- Unemployment rate
- 2.5%
- Employed full-time
- 1,694
- Employed part-time
- 485
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 Somerville (WA)
Based on 2014–2023 records, the warmest month in Somerville (WA) is January (average daytime high around 33.2°C) and the coolest is July (around 16.8°C). The area receives roughly 241 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 33.2°C | 18.7°C | 27 mm |
| Feb | 32.1°C | 18.7°C | 28 mm |
| Mar | 29.6°C | 17.4°C | 26 mm |
| Apr | 24.9°C | 14°C | 18 mm |
| May | 20.4°C | 10°C | 12 mm |
| Jun | 17.1°C | 7.7°C | 21 mm |
| Jul | 16.8°C | 6.8°C | 21 mm |
| Aug | 18.7°C | 7.6°C | 21 mm |
| Sep | 23.1°C | 9.9°C | 9 mm |
| Oct | 26.9°C | 13°C | 17 mm |
| Nov | 29.3°C | 14.9°C | 30 mm |
| Dec | 32.7°C | 17.5°C | 11 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Somerville (WA)
Where is Somerville (WA)?
Somerville (WA) is a suburb of Western Australia, Australia.
What is the population of Somerville (WA)?
At the 2021 Census, Somerville (WA) had a population of about 4,165.
Is Somerville (WA) an advantaged area?
Somerville (WA) has an ABS SEIFA score of 1042, 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 Somerville (WA)?
Somerville (WA) has average daytime highs of about 25.4°C and overnight lows of about 13°C, with roughly 241 mm of rain across the year (based on 2014–2023 climate normals).
Does Somerville (WA) have high household incomes?
Somerville (WA) has one of the highest median weekly household incomes in Western Australia — the 18th-highest among suburbs with at least 1,000 residents at the 2021 Census ($2,996 per week).
Where Somerville (WA) ranks
Somerville (WA) appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
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