South Australia at a glance
Population
18.2k
Median age 31
The brief
What to know about South Australia.
The postcode for South Australia is 5000 (SA), part of Greater Adelaide.
South Australia (5000) sits in the Adelaide region of South Australia.
South Australia has roughly 18,202 residents, with a young-family demographic. Households are dominated by renters.
Who lives here
Demographics.
The 2021 Census put South Australia's population at 18,202, with a median age of 31. That sits as a young-family demographic.
Population
18,202
Median age
31
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)
$400/wk
Weekly rent (unit)
$340/wk
Owner occupied
–
Renter occupied
–
At a deeper level
18,202
Median age: 31
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Safety
Crime and safety.
2
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 South Australia.
Frequently asked
About South Australia.
- What is the South Australia postcode?
- South Australia is in the 5000 postcode, in SA, in the City of Adelaide region.
- Where is South Australia?
- South Australia is a suburb of Adelaide, in SA 5000. It is part of the Greater Adelaide area, in the City of Adelaide region.
- What is the average rent in South Australia?
- The median weekly rent for houses is $400, for units it's $340.
- What is the population of South Australia?
- The population of South Australia is approximately 18,202 (2021 Census). The median age is 31.
For Sale
For Rent
South Australia
Buying
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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