The map above shows American Samoa and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
American Samoa vs South Australia Geography
Land area
- American Samoa has a land area of 77 square miles (199 km²), while South Australia has 380,048 square miles (984,321 km²).
- South Australia's land area is 4,946.3 times larger than American Samoa's.
Total area
- American Samoa: 581 square miles (1,505 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water.
- South Australia's total area is 654.0 times larger than American Samoa's.
Length
- American Samoa is 9 miles (14 km) long from north to south; South Australia is 1,078 miles (1,735 km).
- South Australia's north-south length is 119.8 times longer than American Samoa's.
Width
- American Samoa spans 17 miles (28 km) east to west; South Australia spans 825 miles (1,328 km).
- South Australia's east-west width is 48.5 times wider than American Samoa's.
Highest point
- American Samoa's highest point is Lata Mountain at 3,169 feet (966 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m).
- Mount Woodroffe is 1,539 feet higher than Lata Mountain.
Lowest point
- American Samoa's lowest point is Pacific Ocean at 0 feet; South Australia's is Lake Eyre at -49 feet.
- South Australia's lowest point is 49 feet lower.
American Samoa vs South Australia Population and History
Population
- American Samoa has a population of 49,710 (2020), while South Australia has 1,908,182 (2025).
- South Australia's population is 38.4 times larger than American Samoa's.
Population density
- American Samoa: 645.6 people per square mile vs South Australia: 5.0.
- American Samoa's population density is 129.1 times higher than South Australia's.
History
- American Samoa: A US territory since 1900.
- South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
- In its current form, American Samoa is the older of the two by 1 years.
Official Websites
American Samoa official website · South Australia official website
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More Size Comparisons
All American Samoa 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.