SA · Kangaroo Island Council
Duncan, SA, 5223
Current weather
10.5°CLight drizzle
95% humidity · 22.3 km/h wind · 12.7° / 10.2° today · 19.1 mm rain
Suburb snapshot
Duncan is a small locality in the Kangaroo Island area, home to around 67 residents (2021 Census). Recent indicators show notable planning and development activity on record. Use the sections below for detailed population, safety, schools, and local activity data.
Population
- Population
- 67
- Median age
- 32
- Median household income / week
- $1,875
- Dwelling vacancy
- 51.3%
- Unoccupied private dwellings
- 20 of 39
- Median monthly mortgage
- $550
- Employment rate
- 75.5%
- Dwelling mix (houses / semi / flats)
- 0 / 0 / 0
Data sources & freshness
- 2021 Census — General Community Profile — Australian Bureau of Statistics · Period: 2021 · Updated on site · 2021 Census release
The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.
Planning & development
Development applications from PlanSA register (lodged 2020–2026) and EPA licensed activities.
19 planning-related records
2026· 1 proposal
February 2026
- Verandah and deck717 TIN HUT RD DUNCAN SA 5223Under Assessment
2025· 4 proposals
November 2025
- Construction of agricultural building (combined implement and storage shed)129 TURKEY LANE DUNCAN SA 5223Under Assessment
October 2025
- Agricultural Building (Hay Shed)LOT 60 PLAYFORD HWY DUNCAN SA 5223Under Assessment
September 2025
- Swimming Pool and associated swimming pool safety features.31 JOHNCOCK RD DUNCAN SA 5223Decision Made
- Agricultural Building129 TURKEY LANE DUNCAN SA 5223Under Assessment
2024· 1 proposal
August 2024
- Biochar production facility comprising a movable kiln and associated plant, platforms and canopy, woodchip and biochar stockpiles and associated car parking129 TURKEY LANE DUNCAN SA 5223Under Assessment
2023· 1 proposal
April 2023
- Telecommunications facility comprising a 60 metre high lattice tower, antennas, equipment shelter and security fencing951A STOKES BAY RD DUNCAN SA 5223Decision Made
2022· 5 proposals
October 2022
- Construction of a colorbond shed comprising a dwelling and garage267 STOKES BAY RD DUNCAN SA 5223Decision Made
March 2022
- Installation of a swimming pool and safety barrier fencing141 STOKES BAY RD DUNCAN SA 5223Decision Made
- Telecommunications Facility - comprising a slim line lattice tower supported by 3 anchored guy wires, 2.3 metre high security fenced compound and 2x equipment cabinets, ground-mounted solar array and protective barriers811 STOKES BAY RD DUNCAN SA 5223Decision Made
February 2022
- Construction of a carport501 COOPERS RD DUNCAN SA 5223Decision Made
January 2022
- Temporary accommodation in an area affected by bushfire392 TIN HUT RD DUNCAN SA 5223Decision Made
2021· 7 proposals
December 2021
- Installation of roof mounted solar panels (on tilt-frames) to existing agricultural building including two (2) associated battery storage shipping containers487 TURKEY LANE DUNCAN SA 5223Decision Made
October 2021
- Construction of an agricultural building (machinery shed)406 WETHERALLS RD DUNCAN SA 5223Decision Made
- Erection of 6 Temporary Workers Accommodation structures487 TURKEY LANE DUNCAN SA 5223Decision Made
May 2021
- New 20 megalitre damLOT 151 STOKES BAY RD DUNCAN SA 5223Decision Made
- Construction of a single-storey detached dwelling with ancillary alfresco, verandah and porch, to replace an existing bushfire damaged dwelling.5824 PLAYFORD HWY DUNCAN SA 5223Decision Made
- Construction of an agricultural building (implement shed)501 COOPERS RD DUNCAN SA 5223Decision Made
April 2021
- Construction of a shed (agricultural building) for the purposes of storing implements, dimensioned 33m length x 18m wide x 4.8m high512 STOKES BAY RD DUNCAN SA 5223Decision Made
Data sources & freshness
- PlanSA development applications & EPA licences — Government of South Australia — PlanSA · Period: 2020–2026; 2021; 2022… · Updated on site
Amenities
No OpenStreetMap amenities mapped for this suburb yet.
Data sources & freshness
- OpenStreetMap amenities — OpenStreetMap contributors · Period: current · Updated on site · Weekly refresh
Socio-economic (SEIFA)
- IRSAD decile (2021)
- 6/10
- IRSD decile (2021)
- 6/10
SEIFA indexes from ABS 2021. Decile 10 = most advantaged / least disadvantaged in Australia.
Data sources & freshness
- SEIFA 2021 (IRSAD / IRSD) — Australian Bureau of Statistics · Period: 2021 · Updated on site · 2021 SEIFA release
Green cover
- Parks & woodland (OSM)
- 92
- Parks (OSM)
- 0
OpenStreetMap parks and natural woodland features mapped within the suburb boundary.
Data sources & freshness
- OpenStreetMap green cover features — OpenStreetMap contributors · Period: current · Updated on site · Weekly refresh
Recent changes
- Agricultural Buildingplanning129 TURKEY LANE DUNCAN SA 5223Lodged 05 Sep 2025 · Under Assessment
- Agricultural Building (Hay Shed)planningLOT 60 PLAYFORD HWY DUNCAN SA 5223Lodged 27 Oct 2025 · Under Assessment
- Biochar production facility comprising a movable kiln and associated plant, platforms and canopy, woodchip and biochar stockpiles and associated car parkingplanning129 TURKEY LANE DUNCAN SA 5223Lodged 12 Aug 2024 · Under Assessment
- Construction of a carportplanning501 COOPERS RD DUNCAN SA 5223Lodged 23 Feb 2022 · Decision Made
- Construction of a colorbond shed comprising a dwelling and garageplanning267 STOKES BAY RD DUNCAN SA 5223Lodged 31 Oct 2022 · Decision Made
- Construction of a shed (agricultural building) for the purposes of storing implements, dimensioned 33m length x 18m wide x 4.8m highplanning512 STOKES BAY RD DUNCAN SA 5223Lodged 14 Apr 2021 · Decision Made
- Construction of a single-storey detached dwelling with ancillary alfresco, verandah and porch, to replace an existing bushfire damaged dwelling.planning5824 PLAYFORD HWY DUNCAN SA 5223Lodged 10 May 2021 · Decision Made
- Construction of agricultural building (combined implement and storage shed)planning129 TURKEY LANE DUNCAN SA 5223Lodged 06 Nov 2025 · Under Assessment
- Construction of an agricultural building (implement shed)planning501 COOPERS RD DUNCAN SA 5223Lodged 04 May 2021 · Decision Made
- Construction of an agricultural building (machinery shed)planning406 WETHERALLS RD DUNCAN SA 5223Lodged 26 Oct 2021 · Decision Made
Data sources & freshness
- PlanSA development applications & EPA licences — Government of South Australia — PlanSA · Updated on site