Williamstown, SA 5351
Adelaide Hills CouncilAll suburbs in postcode 5351
Updated
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Selling in Williamstown?
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Rent in Williamstown
- Weekly rent (house)
- $480/wk
- Weekly rent (unit)
- $425/wk
Rental data as of June 2026· SA rental bond data
Free appraisal in Williamstown
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What to know about Williamstown
Williamstown (5351) sits in the Adelaide Hills region of South Australia.
Williamstown has roughly 2,981 residents, with a typical family-age mix. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
What it’s like to live here
Williamstown scores 2/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 30°C (warm), winter mornings around 5°C (cool). Annual rainfall lands at about 651 mm. Figures are our 1991 to 2020 averages of SILO data for this location (Queensland Government, built from Bureau of Meteorology observations).
Schooling within or near the suburb covers 10 government primary, 1 Catholic, 8 independent.
Schools in Williamstown
Location
Walkability
- Walk
- 2/100
- Transit
- 0/100
- Bike
- 0/100
Very car dependent. Scores out of 100, calculated from OpenStreetMap data (ODbL).
Walkability data as of May 2026· OpenStreetMap
Demographics
The 2021 Census put Williamstown's population at 2,981, with a median age of 42. That sits as a typical family-age mix. Households are predominantly owner-occupied (86% own, 11% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (80% family households, 20% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Population
- 2,981
- Median age
- 42
- Family households
- 80%
- Lone person
- 20%
- Owner occupied
- 86%
- Renter occupied
- 11%
Demographics data as of May 2026· ABS 2021 Census
Crime and safety
53 offences recorded in 2025-26
Top offence categories
Source: State Police Open Data
Crime data as of June 2026
Weather year-round
- Annual rainfall
- 651 mm
- Hottest month, avg max
- 29.5°C
- Coldest month, avg min
- 5.4°C
Rainfall by month
Our 1991 to 2020 averages of SILO data (Queensland Government, built from Bureau of Meteorology observations, CC BY 4.0) for this location.
Climate data as of October 2026· SILO (Queensland Government), from Bureau of Meteorology observations
Questions about Williamstown
- What is the Williamstown postcode?
- Williamstown is in the 5351 postcode, in SA, in the Adelaide Hills Council region.
- Where is Williamstown?
- Williamstown is a suburb in the Adelaide Hills Council area, SA 5351.
- What is the average rent in Williamstown?
- The median weekly rent for houses is $480, for units it's $425.
- What schools are in Williamstown?
- There are 20 schools serving Williamstown on this page, including Williamstown Primary School, St Jakobi Lutheran School, Lyndoch Primary School.
- How walkable is Williamstown?
- Williamstown has a Walk Score of 2 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Williamstown?
- Williamstown is close to Barossa Goldfields, Cockatoo Valley, Lyndoch, Altona, Pewsey Vale.
- What is the population of Williamstown?
- The population of Williamstown is approximately 2,981 (2021 Census). The median age is 42.
Selling in Williamstown? Get the free selling guide
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More on Williamstown and nearby
Williamstown
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Sources. House and unit medians from the NSW Valuer General, Land Victoria, the SA Government and the ABS; rents from the state rental bond authorities. Census from the ABS (2021), climate from the Bureau of Meteorology, hazard from Geoscience Australia, schools from ACARA and crime from state police open data. Each figure carries its source and date. How we source data
How we’re paid. The guides and this page are free. When a seller asks, we introduce one local agent, and the agent pays us a flat fee for the introduction, never a share of their commission; it costs the seller nothing. If a figure looks wrong, tell us and we’ll fix it.