Willoughby (SA)
SAWilloughby (SA) is a growing suburb in SA with 11 residents.
- SAL code
- 41605
- SA2
- 407011145
- Population
- 11
- LGA
- Kangaroo Island
Willoughby (SA), SA had 11 residents at the 2021 Census, with the broader statistical area showing a 5.8% growth over the last five years. The predominant age group is 65-74 years, and the median age sits at 54. The median household income is $1,874 per week, and households with a mortgage repay around $0 a month. Most workers travel by car (driver), accounting for 40.0% of the journey-to-work mix. The suburb has 4 parks and reserves mapped within its boundary. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Population
?11
Suburb · Census 2021
5-Year Growth
+5.8%
3yr: +2.5% · 10yr: +9.5%
SA2 · 5yr
Household Income
$1,874/wk
Suburb · Census 2021 median
Median Age
54
Suburb · Census 2021
Socio-Economic Index
?4/10
SA2 · middle-range
Unemployment
?2.0%
SA2 · Q4 2025
Hospitals
No data for this suburb
Childcare services
No data for this suburb
Parks & green space
?4
Parks, reserves
Transport stops
No data for this suburb
Dwelling approvals
?2
Kangaroo Island · Feb 2026
Median House Sale Price
No data for this suburb
VGV suppresses suburbs with too few sales per quarter
Population over time — Kangaroo Island (SA2)
ABS publishes annual estimates only at SA2; Willoughby (SA) suburb alone is ~11 (Census 2021).
Source: ABS ERP (latest release · 2025) · Census 2021. Numbers refreshed quarterly.
Growth at a Glance
Population grew from 4,227 to 5,212 over 24 years, averaging 0.9% 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
mixed tenure (0.0% own or mortgage).
Tenure
SA 28%
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
3 zones in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| RURAL | RuralRural | 60.5% | 15.70 km² |
| CONSERVATION | ConservationEnvironmental | 39.1% | 10.13 km² |
| COASTAL_WATERS_AND_OFFSHORE_ISLANDS | Coastal Waters and Offshore IslandsWaterway | 0.4% | 0.10 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.