Mount Gambier Population 2026
Mount Gambier has a population of 25,591, making it the #58 biggest city in 🇦🇺 Australia, located in South Australia. Roughly 0.1% of Australia's population lives here. It is about 220× smaller than Sydney, the country's biggest city.
Population (city proper)
25,591
Rank in Australia
#58
Coordinates
37.83°S, 140.78°E
~41 m elevation · Australia/Adelaide
Distance to capital (Canberra)
797 km
495 miles, straight line
Other big cities in South Australia
| City | Population | Rank in Australia |
|---|---|---|
| Adelaide | 1,469,163 | #5 |
| Adelaide Hills | 72,260 | #31 |
| Mount Barker | 21,554 | #64 |
| Whyalla | 20,880 | #68 |
| Gawler | 20,006 | #71 |
Cities near Mount Gambier
- Warrnambool32,894 people · ~162 km away
- Horsham16,985 people · ~177 km away
- Ballarat111,973 people · ~272 km away
- Torquay18,534 people · ~315 km away
- Geelong282,809 people · ~316 km away
- Bacchus Marsh24,717 people · ~322 km away
FAQ
What is the population of Mount Gambier?
Mount Gambier has a population of 25,591 (city proper, latest official figure via GeoNames), making it the #58 biggest city in Australia.
What region is Mount Gambier in?
Mount Gambier is located in South Australia, Australia.
Is Mount Gambier the capital of Australia?
No, the capital of Australia is Canberra, about 797 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
← All biggest cities in Australia · Australia population by year