Adelaide is the capital and largest city of South Australia, with a population of approximately 1,368,209 inhabitants. Founded in 1836 and named after Queen Adelaide, consort of King William IV, the city was planned as a free settlement rather than a penal colony, which shaped its early social and political development. Designed by Colonel William Light, Adelaide is noted for its grid layout surrounded by parklands. During the nineteenth century it became a center of agriculture, wine production, and cultural life, earning a reputation as a progressive and well-planned city.
Today, Adelaide is known for its festivals, universities, and thriving arts scene. Major cultural institutions include the Art Gallery of South Australia, which houses significant Australian and international collections. The city also serves as a gateway to renowned wine regions such as the Barossa Valley. Notable individuals born in Adelaide include tennis champion Lleyton Hewitt and internationally acclaimed singer-songwriter Sia.
Adelaide in Australia
138.6° E
Adelaide Population Evolution
The population of Adelaide in 2026 is estimated to 1,458,990 inhabitants. This estimate is taken from our extrapolation of available data and not an official estimate.
Population Summary
| Year | Population | Change |
|---|---|---|
| 2001 | 1,066,103 | |
| 2006 | 1,105,839 | +3.7% |
| 2011 | 1,198,468 | +8.4% |
| 2016 | 1,277,431 | +6.6% |
| 2021 | 1,368,209 | +7.1% |
Interactive Map of Adelaide
What to see in Adelaide
Adelaide Town Hall
concert hallSt Peter’s Cathedral
Anglican or Episcopal cathedralUniversity of South Australia
public universityVictoria Square
squareArt Gallery of South Australia
museumAdelaide Botanic Garden
botanical gardenFamous People Born in Adelaide
William Lawrence Bragg
physicistSia
actorLleyton Hewitt
tennis playerAustralian tennis player and tennis coach
Teresa Palmer
actorAustralian actress, model, writer and producer
Sister Cities of Adelaide
Sister cities, also known as twin cities, are formal partnerships between cities in different countries to promote cultural and commercial ties.
This list is based on publicly available structured data and may differ slightly from official municipal publications.
| City | Country | Population |
|---|---|---|
| Chengdu | 🇨🇳 People's Republic of China | 20,937,757 |
| Qingdao | 🇨🇳 People's Republic of China | 10,071,722 |
| Dalian | 🇨🇳 People's Republic of China | 7,450,785 |
| Austin | 🇺🇸 United States | 961,855 |
| George Town | 🇲🇾 Malaysia | 794,313 |
| Himeji | 🇯🇵 Japan | 527,596 |
| Christchurch | 🇳🇿 New Zealand | 383,200 |
Learn more about Adelaide
Other facts about Adelaide
Sources & References
- Wikidata
- Austrian Bureau of Statistics (accessed on 20 February 2026)