Kangaroo Island
Seddon
Seddon at a glance
Walk score
0
Very car dependent
Population
107
Median age 37
The brief
What to know about Seddon.
Seddon (5223) sits in the Kangaroo Island region of South Australia.
Seddon has roughly 107 residents, with a typical family-age mix. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
Day to day
What it’s like to live here.
Seddon 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 Seddon's population at 107, with a median age of 37. That sits as a typical family-age mix. Households are predominantly owner-occupied (75% own, 25% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (88% family households, 16% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
107
Median age
37
Family households
88%
Lone person
16%
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)
$211/wk
Weekly rent (unit)
$125/wk
Owner occupied
75%
Renter occupied
25%
At a deeper level
107
Median age: 37
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Safety
Crime and safety.
1
total offences in 2025-26
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of June 2026· State Police Open Data
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 Seddon.
Local schools for Seddon
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 Seddon.
- What is the Seddon postcode?
- Seddon is in the 5223 postcode, in SA, in the Kangaroo Island region.
- What is the average rent in Seddon?
- The median weekly rent for houses is $211, for units it's $125.
- What schools are in Seddon?
- There are 1 schools serving Seddon on this page, including Kangaroo Island Community Education.
- How walkable is Seddon?
- Seddon has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Seddon?
- Seddon is close to Macgillivray, Parndana, Kohinoor, Menzies, Birchmore.
- What is the population of Seddon?
- Seddon has approximately 107 residents. The median age is 37.
Seddon
Guides
Side by side
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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
Every figure on this page carries its source and as-of date in a tooltip. If a figure looks off to you, tell us and we’ll fix it within a week.
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