Onslow, WA 6710
AshburtonAll suburbs in postcode 6710
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.
Sales data as of May 2026
Selling in Onslow?
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Rent in Onslow
- Weekly rent (house)
- $240/wk
- Weekly rent (unit)
- $240/wk
Rental data as of April 2026
Free appraisal in Onslow
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What to know about Onslow
Onslow (6710) sits in the Ashburton region of Western Australia.
Onslow has roughly 829 residents, with a typical family-age mix. Households are dominated by renters. Daily life is car-dependent: most residents drive to work, school and the shops.
What it’s like to live here
Onslow scores 0/100 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 36°C (hot), winter mornings around 14°C (mild). Annual rainfall lands at about 279 mm. Figures are our 1991 to 2020 averages of SILO data for this location (Queensland Government, built from Bureau of Meteorology observations).
Schools in Onslow
Schools serving Onslow: government first, then Catholic and independent.
Government schools
Onslow School
© ACARA, licensed under CC BY 4.0.
Location
Walkability
- Walk
- 0/100
- 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 Onslow's population at 829, with a median age of 35. That sits as a typical family-age mix. Households are dominated by renters (21% own, 53% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (76% family households, 23% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Population
- 829
- Median age
- 35
- Family households
- 76%
- Lone person
- 23%
- Owner occupied
- 21%
- Renter occupied
- 53%
Demographics data as of May 2026· ABS 2021 Census
Weather year-round
- Annual rainfall
- 279 mm
- Hottest month, avg max
- 35.9°C
- Coldest month, avg min
- 14.0°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 Onslow
- What is the Onslow postcode?
- Onslow is in the 6710 postcode, in WA, in the Ashburton region.
- Where is Onslow?
- Onslow is a suburb in the Ashburton area, WA 6710.
- What is the average rent in Onslow?
- The median weekly rent for houses is $240, for units it's $240.
- What schools are in Onslow?
- There are 1 schools serving Onslow on this page, including Onslow School.
- How walkable is Onslow?
- Onslow has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Onslow?
- Onslow is close to Thevenard Island, Talandji, Peedamulla.
- What is the population of Onslow?
- The population of Onslow is approximately 829 (2021 Census). The median age is 35.
Selling in Onslow? Get the free selling guide
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Selling in WA
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.