Williamstown (SA), SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Williamstown is a town in the Adelaide Hills of South Australia, about 51km north-east of Adelaide and 16km south-east of Gawler, on Victoria Creek at the southern edge of the Barossa Valley. Originally known as Victoria Creek, it was laid out by Lewis Johnston, who bought land in 1857 and surveyed the township in 1858, naming it after his son. Farming, orchards, vineyards and timber-milling sustained the district, and a short gold rush followed in 1868. A nearby slab-and-stone homestead dating from 1841 is claimed to be among the oldest in the state. Today Williamstown is a quiet country town and a southern gateway to the Barossa, with nearby reservoirs and Hale Conservation Park offering walking and water sports.
Around the national middle
Williamstown (SA) is more socio-economically advantaged than about 51% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 989, 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.
Williamstown (SA) at a glance
- Population (2021)
- 2,981
- Median age
- 42
- Median weekly household income
- $1,782
- SEIFA score
- 989
- Coordinates
- -34.6703, 138.8867
Williamstown (SA) demographics (2021 Census)
The figures below profile Williamstown (SA) 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%, 11% of homes are rented, and 15% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 596 | 20% |
| Youth (15–24) | 339 | 11% |
| Young adults (25–44) | 664 | 22% |
| Mid-life (45–64) | 892 | 30% |
| Seniors (65+) | 498 | 17% |
Share of the 2,989 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 344 | 32% |
| Owned with a mortgage | 569 | 54% |
| Rented | 118 | 11% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 1,055 | 99% |
| Townhouses & semis | 10 | 1% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 1,069 occupied private dwellings in Williamstown (SA).
- Median weekly rent
- $300
- Median monthly mortgage
- $1,500
- Average household size
- 2.7 people
- Median weekly family income
- $2,063
- Median weekly personal income
- $813
Community and culture
- Born overseas
- 436 (15%)
- Speaks a language other than English at home
- 54 (2%)
- Aboriginal and/or Torres Strait Islander
- 38 (1%)
Work and education
- Completed Year 12
- 1,108 (49%)
- Labour-force participation
- 67.4%
- Unemployment rate
- 3.3%
- Employed full-time
- 911
- Employed part-time
- 533
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.
Common questions about Williamstown (SA)
Where is Williamstown (SA)?
Williamstown (SA) is a suburb of South Australia, Australia.
What is the population of Williamstown (SA)?
At the 2021 Census, Williamstown (SA) had a population of about 2,981.
Is Williamstown (SA) an advantaged area?
Williamstown (SA) has an ABS SEIFA score of 989, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 51 out of 100 — more socio-economically advantaged than about 51% of Australian suburbs.
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