Biggs Flat
SABiggs Flat is a declining suburb in SA with 84 residents.
- SAL code
- 40105
- SA2
- 401021005
- Population
- 84
- LGA
- Mount Barker
Biggs Flat, SA had 84 residents at the 2021 Census, with the broader statistical area showing a 0.5% decline over the last five years. The predominant age group is 55-64 years, and the median age sits at 43. Households are most often couples without children, and those with a mortgage repay a median of $2,980 a month. Around 65.5% of homes are owner-occupied, with the largest single tenure being owned with a mortgage at 41.4%. Most dwellings are separate houses, making up 100.0% of the suburb's housing stock. Labour-force participation reaches 65.2%, with an unemployment rate of 14.0%. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Population
?84
Suburb · Census 2021
5-Year Growth
-0.5%
3yr: -1.3% · 10yr: +4.2%
SA2 · 5yr
Household Income
$1,625/wk
Suburb · Census 2021 median
Median Age
43
Suburb · Census 2021
Socio-Economic Index
?9/10
SA2 · least disadvantaged
Unemployment
?2.8%
SA2 · Q4 2025
Hospitals
No data for this suburb
Childcare services
No data for this suburb
Parks & green space
No data for this suburb
Transport stops
No data for this suburb
Dwelling approvals
?53
Mount Barker · Feb 2026
Median Weekly Rent
Based on rental bond lodgements recorded by the state government.
Median House Sale Price
No data for this suburb
VGV suppresses suburbs with too few sales per quarter
Safety & Crime
2025 Q4Reported incidents from SA police. Offence rates may not reflect all crime.
Population over time — Hahndorf - Echunga (SA2)
ABS publishes annual estimates only at SA2; Biggs Flat suburb alone is ~84 (Census 2021).
Source: ABS ERP (latest release · 2025) · Census 2021. Numbers refreshed quarterly.
Growth at a Glance
Population grew from 4,080 to 4,698 over 24 years, averaging 0.6% per year.
Government school catchment
Catchment data is not yet available for SA.
Source when available: SA Department for Education — School Zones (primary + high).
Profile
Census snapshot
Housing
Almost entirely detached houses (100%), mixed tenure (65.5% own or mortgage).
Dwelling mix
Tenure
SA 28%
Number of bedrooms
Bushfire risk
Source: SA DHUD Bushfire Protection Areas
As of May 2026
Overlap is the percentage of the suburb's land area inside the mapped bushfire polygons. Always verify the exact property address with the relevant authority before making decisions.
Flood risk
Source: SA DEW Flood Mapping
As of May 2026
Overlap is the percentage of the suburb's land area inside the mapped flood polygons. Always verify the exact property address with the relevant authority before making decisions.
Planning zones
1 zone in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| PRODUCTIVE_RURAL_LANDSCAPE | Productive Rural LandscapeRural | 100.0% | 4.80 km² |
Source: SA Planning and Design Code Zones (ZONE_SA/2026-04-30/7965b1556505eb71) · As of Apr 2026. Zone boundaries are amended periodically; verify the exact property with the relevant council before relying on permitted use.