Biggs Flat at a glance
Walk score
2
Very car dependent
Population
84
Median age 43
The brief
What to know about Biggs Flat.
The postcode for Biggs Flat is 5153 (SA), part of Greater Adelaide.
Biggs Flat (5153) sits in the Alexandrina region of South Australia.
Biggs Flat has roughly 84 residents, with an established, older skew. Households are mostly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
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What it’s like to live here.
Biggs Flat 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 28°C (warm), winter mornings around 7°C (cool). Annual rainfall lands at about 448mm. Data comes from the Bureau of Meteorology's Adelaide (Kent Town) station, 11.1km away.
Schooling within or near the suburb covers 11 government primary, 2 government secondary, 1 Catholic, 6 independent.
Who lives here
Demographics.
The 2021 Census put Biggs Flat's population at 84, with a median age of 43. That sits as an established, older skew. Households are mostly owner-occupied (66% own, 0% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (76% family households, 10% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
84
Median age
43
Family households
76%
Lone person
10%
Demographics data as of May 2026· ABS 2021 Census
Market
The price of a home here.
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.
Rental and ownership
Weekly rent (house)
$480/wk
Weekly rent (unit)
$350/wk
Owner occupied
66%
Renter occupied
–
At a deeper level
84
Median age: 43
Rental data as of December 2025· rental-sa
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Safety
Crime and safety.
1
total offences in 2025-26
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of June 2026· State Police Open Data
Getting around
Walkability.
2
0
0
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Nearby suburbs
Education
Schools in Biggs Flat.
Local schools for Biggs Flat
View the catchment for each school to find out more.
Government School Catchment
Echunga Primary and Preschool
Mylor Primary School
Hahndorf Primary School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
448 mm
Hottest Month (avg max)
28.0°C
Coldest Month (avg min)
7.0°C
Monthly Rainfall (mm)
Weather data from BOM station Adelaide (Kent Town) (11 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Biggs Flat.
- What is the Biggs Flat postcode?
- Biggs Flat is in the 5153 postcode, in SA, in the Alexandrina Council region.
- Where is Biggs Flat?
- Biggs Flat is a suburb of Adelaide, in SA 5153. It is part of the Greater Adelaide area, in the Alexandrina Council region.
- What is the average rent in Biggs Flat?
- The median weekly rent for houses is $480, for units it's $350.
- What schools are in Biggs Flat?
- There are 20 schools serving Biggs Flat on this page, including Echunga Primary and Preschool, Mylor Primary School, St Michael's Lutheran School, Hahndorf Inc.
- How walkable is Biggs Flat?
- Biggs Flat has a Walk Score of 2 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Biggs Flat?
- Biggs Flat is close to Chapel Hill, Echunga, Paechtown, Mylor, Jupiter Creek.
- What is the population of Biggs Flat?
- The population of Biggs Flat is approximately 84 (2021 Census). The median age is 43.
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
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