Nepean Bay, SA 5223 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Nepean Bay is a suburb of South Australia, postcode 5223, home to 140 residents with a settled, mature community. Located in the Kangaroo Island local government area (Remote Australia) and roughly 137 km from the Adelaide CBD.
Snapshot
Demographics
- Population
- 140
- Median age
- 51 years
- Median household income
- $875 /week
- Median personal income
- $528 /week
- Median family income
- $1,916 /week
- Average household size
- 2.0
- Persons per bedroom
- 0.7
- Local government area
- Kangaroo Island
- Statistical region (SA4)
- South Australia - South East
- Remoteness classification
- Remote Australia
- Federal electorate
- Mayo
Property & cost of living
- Median rent
- $235 /week
- Median monthly mortgage
- $940
- Rent share of household income
- 27%
Schools
School data refreshes annually from ACARA and state education departments.
Transport
Transport data refreshes monthly from state GTFS feeds.
Lifestyle & amenities
- 16 cafés
- 14 restaurants
- 6 pubs and bars
- 148 parks and reserves
- 8 gyms and fitness centres
- 3 supermarkets
- 1 playground
Climate
Climate normals from the Bureau of Meteorology.
NBN & connectivity
Fixed Wireless serves 96.8% of the 125 resolvable premises in Nepean Bay. Most premises here are served by NBN Fixed Wireless from a nearby tower. Speed is shared with neighbours and weather-sensitive; plans up to NBN 100 are available where signal allows.
- Fixed Wireless: 96.8%
- Sky Muster (Satellite): 3.2%
Safety
- Recorded offences: 100 across postcode 5223 in the year to FY2024–25 (up 6% on the prior year).
- Most common categories: 29 violent offences, 27 property damage, 25 theft.
Nearby suburbs
Frequently asked questions
What is the population of Nepean Bay?
Nepean Bay (SA 5223) had 140 residents at the most recent ABS Census. The median age is 51. It sits within the Kangaroo Island local government area.
What is the median rent in Nepean Bay?
The median advertised rent in Nepean Bay is $235/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
What NBN technology is available in Nepean Bay?
Nepean Bay is predominantly served by Fixed Wireless (96.8% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Nepean Bay?
Across postcode 5223, 100 offences were recorded in the 12 months to FY2024–25. The most common offence categories were violent (29), property damage (27), theft (25). Crime statistics are recorded by area (postcode or LGA), not by individual suburb. Data sourced from each state's crime statistics agency.
Sources & methodology
Demographics from ABS Census. Property data from SQM Research. Climate from Bureau of Meteorology. Schools from ACARA. NBN from NBN Co. Amenities from OpenStreetMap. See full methodology.
Additional sources for this profile: