Garden Island (SA)
SAGarden Island (SA) is a stable suburb in SA with 4 residents.
- SAL code
- 40473
- SA2
- 404021103
- Population
- 4
- LGA
- Unincorporated SA
Garden Island (SA), SA had 4 residents at the 2021 Census, with the broader statistical area roughly steady over the last five years. The predominant age group is 65-74 years, and the median age sits at 64. The median household income is $749 per week, and households with a mortgage repay around $0 a month. Around 100.0% of homes are owner-occupied, with the largest single tenure being owned outright at 100.0%. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Population
?4
Suburb · Census 2021
5-Year Growth
+0.0%
3yr: +0.0% · 10yr: +25.0%
SA2 · 5yr
Household Income
$749/wk
Suburb · Census 2021 median
Median Age
64
Suburb · Census 2021
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
No council coverage for this area
Unincorporated SA
Median House Sale Price
state Valuer-General sale price data not yet loaded for SA
Safety & Crime
2025 Q4Reported incidents from SA police. Offence rates may not reflect all crime.
Population over time — Torrens Island (SA2)
ABS publishes annual estimates only at SA2; Garden Island (SA) suburb alone is ~4 (Census 2021).
Growth at a Glance
Population grew from 13 to 5 over 24 years, averaging -3.9% 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
owner-occupied (100%), built for families (100% are 1 bed).
Tenure
Number of bedrooms
Bushfire & flood risk
Hazard data is not yet available for SA.
Source when available: SA DHUD Bushfire Hazards Overlay and DEW Flood Mapping.
Planning zones
3 zones in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| RECREATION | RecreationRecreation | 60.9% | 0.75 km² |
| CONSERVATION | ConservationEnvironmental | 38.8% | 0.48 km² |
| INFRASTRUCTURE | InfrastructureSpecial use | 0.3% | 3,369 m² |
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.