The map above shows Florida and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Florida vs South Australia Geography
Land area: Florida has a land area of 53,655 square miles (138,965 km²), while South Australia has 380,048 square miles (984,321 km²). South Australia's land area is 7.1 times (608%) larger than Florida's.
Total area: Florida: 71,404 square miles (184,934 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. South Australia's total area is 5.3 times (432%) larger than Florida's.
Length: Florida is 471 miles (758 km) long from north to south; South Australia is 1,078 miles (1,735 km). South Australia's north-south length is 2.3 times (129%) longer than Florida's.
Width: Florida spans 547 miles (880 km) east to west; South Australia spans 825 miles (1,328 km). South Australia's east-west width is 1.5 times (51%) wider than Florida's.
Highest point: Florida's highest point is Britton Hill at 344 feet (105 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Mount Woodroffe is 4,364 feet higher than Britton Hill.
Lowest point: Florida's lowest point is Atlantic Ocean at 0 feet; South Australia's is Lake Eyre at -49 feet. South Australia's lowest point is 49 feet lower.
Florida vs South Australia Population and History
Population: Florida has a population of 23,372,215 (2024), while South Australia has 1,908,182 (2025). Florida's population is 12.2 times larger than South Australia's.
Population density: Florida: 435.6 people per square mile vs South Australia: 5.0. Florida's population density is 87.1 times higher than South Australia's.
Largest metro area: Florida's largest metropolitan area is Miami-Fort Lauderdale-West Palm Beach, FL metro area (6,457,988 people) vs South Australia's Greater Adelaide (1,491,015). Miami-Fort Lauderdale-West Palm Beach, FL metro area's population is 4.3 times (333%) larger than Greater Adelaide's.
History: Florida: Admitted to the Union on March 3, 1845, as the 27th state. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836. In its current form, Florida is the older of the two by 56 years.
Florida vs South Australia Economy
GDP: Florida's GDP is $1,726.7 billion (2024) vs South Australia's $100.2 billion. Florida's economic output is 17.2 times larger than South Australia's.
GDP per capita: Florida: $73,879 per person vs South Australia: $52,511. Florida's GDP per capita is 1.4 times (41%) higher than South Australia's.
Official Websites
Florida official website · South Australia official website
More Size Comparisons
All Florida 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.