Kangaroo Island
Nepean Bay
Nepean Bay at a glance
Walk score
0
Very car dependent
Population
140
Median age 51
The brief
What to know about Nepean Bay.
Nepean Bay (5223) sits in the Kangaroo Island region of South Australia.
Nepean Bay has roughly 140 residents, with a retiree-heavy demographic. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
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Day to day
What it’s like to live here.
Nepean Bay scores 0/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Who lives here
Demographics.
The 2021 Census put Nepean Bay's population at 140, with a median age of 51. That sits as a retiree-heavy demographic. Households are predominantly owner-occupied (80% own, 5% rent), which shapes everything from school catchment stability to how often properties turn over. Lone-person households are notable here (43%), often a marker of unit-heavy stock and walkable infrastructure.
Population
140
Median age
51
Family households
48%
Lone person
43%
Demographics data as of May 2026· ABS 2021 Census
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Rental and ownership
Weekly rent (house)
$375/wk
Weekly rent (unit)
$235/wk
Owner occupied
80%
Renter occupied
5%
At a deeper level
140
Median age: 51
Rental data as of December 2025· rental-sa
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Getting around
Walkability.
0
0
0
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Nepean Bay.
Local schools for Nepean Bay
View the catchment for each school to find out more.
Government School Catchment
Kangaroo Island Community Education
© ACARA, licensed under CC BY 4.0.
Frequently asked
About Nepean Bay.
- What is the Nepean Bay postcode?
- Nepean Bay is in the 5223 postcode, in SA, in the Kangaroo Island region.
- What is the average rent in Nepean Bay?
- The median weekly rent for houses is $375, for units it's $235.
- What schools are in Nepean Bay?
- There are 1 schools serving Nepean Bay on this page, including Kangaroo Island Community Education.
- How walkable is Nepean Bay?
- Nepean Bay has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Nepean Bay?
- Nepean Bay is close to Cygnet River, Brownlow Ki, Brownlow, Birchmore, Kingscote.
- What is the population of Nepean Bay?
- Nepean Bay has approximately 140 residents. The median age is 51.
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Nepean Bay
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
Always dated
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