Eyre Peninsula and South West
Thistle Island
Thistle Island at a glance
Population
14.5k
Median age 41
The brief
What to know about Thistle Island.
Thistle Island (5606) sits in the Eyre Peninsula and South West region of South Australia.
Thistle Island has roughly 14,459 residents, with a typical family-age mix. Households are dominated by renters.
Who lives here
Demographics.
The 2021 Census put Thistle Island's population at 14,459, with a median age of 41. That sits as a typical family-age mix.
Population
14,459
Median age
41
Family households
–
Lone person
–
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)
$240/wk
Weekly rent (unit)
$204/wk
Owner occupied
–
Renter occupied
–
At a deeper level
14,459
Median age: 41
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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
Place
Location.
Amenities
Transport
Nearby suburbs
Education
Schools in Thistle Island.
Frequently asked
About Thistle Island.
- What is the Thistle Island postcode?
- Thistle Island is in the 5606 postcode, in SA, in the Eyre Peninsula and South West region.
- What is the average rent in Thistle Island?
- The median weekly rent for houses is $240, for units it's $204.
- What is the population of Thistle Island?
- Thistle Island has approximately 14,459 residents. The median age is 41.
For Sale
For Rent
Thistle Island
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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