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 166.7% of homes are owner-occupied, with the largest single tenure being owned outright at 166.7%. 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
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 — Torrens Island (SA2)
ABS publishes annual estimates only at SA2; Garden Island (SA) suburb alone is ~4 (Census 2021).
Source: ABS ERP (latest release · 2025) · Census 2021. Numbers refreshed quarterly.
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 (166.7%), built for families (100% are 1 bed).
Tenure
SA 28%
Number of bedrooms
Bushfire risk
This suburb falls outside every bushfire polygon mapped by the relevant authority. Always confirm at the property address — local conditions and unmapped overlays can still apply.
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. Source when available: SA DHUD Bushfire Hazards Overlay and DEW Flood Mapping.
Flood risk
This suburb falls outside every flood polygon mapped by the relevant authority. Always confirm at the property address — local conditions and unmapped overlays can still apply.
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. 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.