The map above shows Australian Capital Territory and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Australian Capital Territory vs South Australia Geography
Land area
- Australian Capital Territory has a land area of 910 square miles (2,358 km²), while South Australia has 380,048 square miles (984,321 km²).
- South Australia's land area is 417.4 times larger than Australian Capital Territory's.
Total area
- Australian Capital Territory: 910 square miles (2,358 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water.
- South Australia's total area is 417.4 times larger than Australian Capital Territory's.
Length
- Australian Capital Territory is 54 miles (87 km) long from north to south; South Australia is 1,078 miles (1,735 km).
- South Australia's north-south length is 20.0 times longer than Australian Capital Territory's.
Width
- Australian Capital Territory spans 38 miles (61 km) east to west; South Australia spans 825 miles (1,328 km).
- South Australia's east-west width is 21.7 times wider than Australian Capital Territory's.
Highest point
- Australian Capital Territory's highest point is Bimberi Peak at 6,273 feet (1,912 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m).
- Bimberi Peak is 1,565 feet higher than Mount Woodroffe.
Lowest point
- Australian Capital Territory's lowest point is Molonglo River at 1,407 feet; South Australia's is Lake Eyre at -49 feet.
- South Australia's lowest point is 1,456 feet lower.
Australian Capital Territory vs South Australia Population and History
Population
- Australian Capital Territory has a population of 486,231 (2025), while South Australia has 1,908,182 (2025).
- South Australia's population is 3.9 times (292%) larger than Australian Capital Territory's.
Population density
- Australian Capital Territory: 534.3 people per square mile vs South Australia: 5.0.
- Australian Capital Territory's population density is 106.9 times higher than South Australia's.
Largest metro area
- Australian Capital Territory's largest metropolitan area is Greater Canberra (486,231 people) vs South Australia's Greater Adelaide (1,491,015).
- Greater Adelaide's population is 3.1 times (207%) larger than Greater Canberra's.
History
- Australian Capital Territory: Established as the Federal Capital Territory on January 1, 1911.
- South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
- In its current form, South Australia is the older of the two by 10 years.
Australian Capital Territory vs South Australia Economy
GDP
- Australian Capital Territory's GDP is $38.0 billion (2025) vs South Australia's $100.2 billion.
- South Australia's economic output is 2.6 times (164%) larger than Australian Capital Territory's.
GDP per capita
- Australian Capital Territory: $78,152 per person vs South Australia: $52,511.
- Australian Capital Territory's GDP per capita is 1.5 times (49%) higher than South Australia's.
Official Websites
Australian Capital Territory official website · South Australia official website
Download the Australian Capital Territory vs South Australia Size Comparison Map for free
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More Size Comparisons
All Australian Capital Territory size comparisons · All South Australia size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.