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South Australia Postcodes
SA · Capital: Adelaide · Area code: 08 · 2,014 suburbs
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).
Income and rent figures are population-weighted across SA suburbs from the 2021 Census. SEIFA is the median IRSAD decile.
Largest suburbs in SA
Highest-income suburbs in SA
Top 10 suburbs by median household income (population 500+). 2021 Census.
Local Government Areas in SA
72 LGAs in South Australia. Top 20 by population shown below. Each LGA page covers its suburbs, postcodes, demographics, schools, and SEIFA scores.
52 more LGAs in SA (browse via suburb pages).