State postcode hub

South Australia, suburb by suburb.

Adelaide out to the regions: 2,014 suburbs and localities, each with 2021 Census demographics, SEIFA advantage, income, rent and schools on one page.

2,014
Suburbs and localities
72
Local Government Areas
1,809,740
People counted (2021)

Suburb and LGA counts from the ASGS; population from the ABS 2021 Census.

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The shape of the state

South Australia is not one place. The numbers shift from the capital to the regions, and every suburb has its own.

South Australia covers 1,044,353 km² with a population of approximately 1,824,000. The state capital is Adelaide. Postcodes in SA are organised into 8 statistical regions across 72 Local Government Areas. The population-weighted median household income across SA is $1,545 per week. The most populous LGA in SA is Onkaparinga (177,379 residents).

SA at a glance

What the 2021 Census says about SA.

Population-weighted averages across every SA suburb with Census data. The full detail sits on each suburb page.

2,014
Suburbs with data
2021 Census
1,809,740
Total population
Usual residents
$1,545
Household income
Median, per week
$308
Rent
Median, per week
45.0
Median age
Years
5.0/10
SEIFA advantage
Median IRSAD decile

Income and rent are population-weighted across SA suburbs. SEIFA is the median IRSAD decile, where 10 is most advantaged. Source: ABS Census 2021, SEIFA 2021.

Income ladder

Highest-income suburbs in SA.

Top 10 suburbs by median weekly household income, population 500 or more. Bars are scaled across this group for contrast.

Springfield $4,511/wk Medindie $3,750/wk Roxby Downs $3,142/wk Unley Park $2,990/wk Craigburn Farm $2,944/wk Stonyfell $2,859/wk Millswood $2,836/wk Malvern $2,655/wk Chandlers Hill $2,654/wk Auldana $2,592/wk

Source: ABS Census 2021, median total household income (weekly).

By the crowd

Largest suburbs in SA.

The 12 most populated suburbs and localities, by usual residents counted in 2021.

Mount Gambier5290 25,591 Morphett Vale5162 24,002 Clayton5256 18,988 Parafield Gardens5107 18,467 Mount Barker5251 18,330 Adelaide5000 18,202 Paralowie5108 17,504 Murray Bridge5253 15,043 Prospect5082 14,584 Port Lincoln5606 14,458 Mawson Lakes5095 13,794 Hallett Cove5158 12,512

Source: ABS Census 2021, usual resident population.

Council country

Local Government Areas in SA.

72 LGAs across South Australia. The 20 largest by population are below. Each hub covers its suburbs, postcodes, demographics, schools and SEIFA scores.

Onkaparinga 177,379 · 53 sub Salisbury 149,078 · 35 sub Port Adelaide Enfield 133,310 · 54 sub Charles Sturt 123,859 · 42 sub Playford 99,541 · 36 sub Tea Tree Gully 98,945 · 21 sub Marion 94,003 · 26 sub Mitcham 66,083 · 30 sub Campbelltown (SA) 57,720 · 8 sub West Torrens 57,236 · 27 sub Burnside 43,446 · 28 sub Adelaide Hills 41,441 · 54 sub Holdfast Bay 39,719 · 12 sub Mount Barker 39,079 · 30 sub Unley 38,644 · 16 sub Norwood Payneham and St Peters 37,490 · 22 sub Alexandrina 28,991 · 53 sub Mount Gambier 27,576 · 3 sub Barossa 25,570 · 28 sub Gawler 25,129 · 13 sub

52 more LGAs in SA are reachable from their suburb pages.

Browse by region

Find your part of SA.

Adelaide - Central and Hills 135 sub · 7 areas Adelaide - North 139 sub · 4 areas Adelaide - South 117 sub · 3 areas Adelaide - West 119 sub · 3 areas Barossa - Yorke - Mid North 378 sub · 4 areas Northern Territory - Outback 17 sub · 1 areas South Australia - Outback 499 sub · 2 areas South Australia - South East 610 sub · 3 areas

Where to next

Start with useful SA views.

Search suburbs and postcodes
Find any SA suburb or four-digit postcode.
Compare two suburbs
Put Census, SEIFA, housing and school data side by side.
SA LGA maps
Browse 72 council-area hubs with suburb markers and postcode coverage.
Schools overview
Use ACARA 2025 school profiles alongside local suburb data.
SA weather
Climate and comfort data for South Australia.
SA NDIS providers
Provider coverage and transparency data for South Australia.

More South Australia data across RefDat

Climate & weather SANDIS providers SA

How to read these pages

Every figure traces to an official source. No listings, no scraping, no spin.

Demographics come from the 2021 Census, advantage scores from SEIFA 2021, schools from ACARA, and geography from the ASGS. Postcode boundaries follow Matthew Proctor's open dataset.

See the national rankings → Search any place