The map above shows Wyoming and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Wyoming vs South Australia Geography
Land area: Wyoming has a land area of 97,089 square miles (251,458 km²), while South Australia has 380,048 square miles (984,321 km²). South Australia's land area is 3.9 times (291%) larger than Wyoming's.
Total area: Wyoming: 97,810 square miles (253,326 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. South Australia's total area is 3.9 times (289%) larger than Wyoming's.
Length: Wyoming is 324 miles (522 km) long from north to south; South Australia is 1,078 miles (1,735 km). South Australia's north-south length is 3.3 times (233%) longer than Wyoming's.
Width: Wyoming spans 410 miles (659 km) east to west; South Australia spans 825 miles (1,328 km). South Australia's east-west width is 2.0 times (101%) wider than Wyoming's.
Highest point: Wyoming's highest point is Gannett Peak at 13,788 feet (4,203 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Gannett Peak is 9,080 feet higher than Mount Woodroffe.
Lowest point: Wyoming's lowest point is Belle Fourche River at 3,108 feet; South Australia's is Lake Eyre at -49 feet. South Australia's lowest point is 3,157 feet lower.
Wyoming vs South Australia Population and History
Population: Wyoming has a population of 587,618 (2024), while South Australia has 1,908,182 (2025). South Australia's population is 3.2 times (225%) larger than Wyoming's.
Population density: Wyoming: 6.1 people per square mile vs South Australia: 5.0. Wyoming's population density is 1.2 times (22%) higher than South Australia's.
Largest metro area: Wyoming's largest metropolitan area is Cheyenne, WY metro area (101,783 people) vs South Australia's Greater Adelaide (1,491,015). Greater Adelaide's population is 14.6 times larger than Cheyenne, WY metro area's.
History: Wyoming: Admitted to the Union on July 10, 1890, as the 44th state. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836. In its current form, Wyoming is the older of the two by 11 years.
Wyoming vs South Australia Economy
GDP: Wyoming's GDP is $51.5 billion (2024) vs South Australia's $100.2 billion. South Australia's economic output is 1.9 times (95%) larger than Wyoming's.
GDP per capita: Wyoming: $87,639 per person vs South Australia: $52,511. Wyoming's GDP per capita is 1.7 times (67%) higher than South Australia's.
Official Websites
Wyoming official website · South Australia official website
More Size Comparisons
All Wyoming 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.