Thornlea, SA 5280
GrantAll suburbs in postcode 5280
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.
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Rent in Thornlea
Rental data as of October 2026
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What to know about Thornlea
Thornlea (5280) sits in the Grant region of South Australia.
Thornlea has roughly 46 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
Thornlea 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 25°C (mild), winter mornings around 7°C (cool). Annual rainfall lands at about 675 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 2 government primary.
Schools in Thornlea
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 Thornlea's population at 46, with a median age of 37. That sits as a typical family-age mix. Households are predominantly owner-occupied (94% own, 0% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (100% family households, 18% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Population
- 46
- Median age
- 37
- Family households
- 100%
- Lone person
- 18%
- Owner occupied
- 94%
Demographics data as of May 2026· ABS 2021 Census
Weather year-round
- Annual rainfall
- 675 mm
- Hottest month, avg max
- 25.0°C
- Coldest month, avg min
- 6.9°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 Thornlea
- What is the Thornlea postcode?
- Thornlea is in the 5280 postcode, in SA, in the Grant region.
- Where is Thornlea?
- Thornlea is a suburb in the Grant area, SA 5280.
- What schools are in Thornlea?
- There are 3 schools serving Thornlea on this page, including Kangaroo Inn Area School, Beachport Primary School, Rendelsham Primary School.
- How walkable is Thornlea?
- Thornlea has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Thornlea?
- Thornlea is close to Clay Wells, Magarey, Kangaroo Inn, Wattle Range, Rendelsham.
- What is the population of Thornlea?
- The population of Thornlea is approximately 46 (2021 Census). The median age is 37.
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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.