The map above shows Utah and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Utah vs South Australia Geography
Land area: Utah has a land area of 82,596 square miles (213,922 km²), while South Australia has 380,048 square miles (984,321 km²). South Australia's land area is 4.6 times (360%) larger than Utah's.
Total area: Utah: 84,898 square miles (219,885 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. South Australia's total area is 4.5 times (348%) larger than Utah's.
Length: Utah is 436 miles (702 km) long from north to south; South Australia is 1,078 miles (1,735 km). South Australia's north-south length is 2.5 times (147%) longer than Utah's.
Width: Utah spans 268 miles (431 km) east to west; South Australia spans 825 miles (1,328 km). South Australia's east-west width is 3.1 times (208%) wider than Utah's.
Highest point: Utah's highest point is Kings Peak at 13,512 feet (4,118 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Kings Peak is 8,804 feet higher than Mount Woodroffe.
Lowest point: Utah's lowest point is Beaver Dam Wash at 2,180 feet; South Australia's is Lake Eyre at -49 feet. South Australia's lowest point is 2,229 feet lower.
Utah vs South Australia Population and History
Population: Utah has a population of 3,503,613 (2024), while South Australia has 1,908,182 (2025). Utah's population is 1.8 times (84%) larger than South Australia's.
Population density: Utah: 42.4 people per square mile vs South Australia: 5.0. Utah's population density is 8.5 times (748%) higher than South Australia's.
Largest metro area: Utah's largest metropolitan area is Salt Lake City-Murray, UT metro area (1,300,762 people) vs South Australia's Greater Adelaide (1,491,015). Greater Adelaide's population is 1.1 times (15%) larger than Salt Lake City-Murray, UT metro area's.
History: Utah: Admitted to the Union on January 4, 1896, as the 45th state. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836. In its current form, Utah is the older of the two by 5 years.
Utah vs South Australia Economy
GDP: Utah's GDP is $299.5 billion (2024) vs South Australia's $100.2 billion. Utah's economic output is 3.0 times (199%) larger than South Australia's.
GDP per capita: Utah: $85,475 per person vs South Australia: $52,511. Utah's GDP per capita is 1.6 times (63%) higher than South Australia's.
Official Websites
Utah official website · South Australia official website
More Size Comparisons
All Utah 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.