The map above shows Queensland and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Queensland vs South Australia Geography
Land area: Queensland has a land area of 668,207 square miles (1,730,648 km²), while South Australia has 380,048 square miles (984,321 km²). Queensland's land area is 1.8 times (76%) larger than South Australia's.
Total area: Queensland: 668,207 square miles (1,730,648 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. Queensland's total area is 1.8 times (76%) larger than South Australia's.
Length: Queensland is 1,398 miles (2,251 km) long from north to south; South Australia is 1,078 miles (1,735 km). Queensland's north-south length is 1.3 times (30%) longer than South Australia's.
Width: Queensland spans 1,272 miles (2,048 km) east to west; South Australia spans 825 miles (1,328 km). Queensland's east-west width is 1.5 times (54%) wider than South Australia's.
Highest point: Queensland's highest point is Mount Bartle Frere at 5,285 feet (1,611 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Mount Bartle Frere is 577 feet higher than Mount Woodroffe.
Lowest point: Queensland'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.
Queensland vs South Australia Population and History
Population: Queensland has a population of 5,692,642 (2025), while South Australia has 1,908,182 (2025). Queensland's population is 3.0 times (198%) larger than South Australia's.
Population density: Queensland: 8.5 people per square mile vs South Australia: 5.0. Queensland's population density is 1.7 times (70%) higher than South Australia's.
Largest metro area: Queensland's largest metropolitan area is Greater Brisbane (2,833,524 people) vs South Australia's Greater Adelaide (1,491,015). Greater Brisbane's population is 1.9 times (90%) larger than Greater Adelaide's.
History: Queensland: Became an Australian state at Federation on January 1, 1901; separated from New South Wales in 1859. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
Queensland vs South Australia Economy
GDP: Queensland's GDP is $345.6 billion (2025) vs South Australia's $100.2 billion. Queensland's economic output is 3.4 times (245%) larger than South Australia's.
GDP per capita: Queensland: $60,710 per person vs South Australia: $52,511. Queensland's GDP per capita is 1.2 times (16%) higher than South Australia's.
Official Websites
Queensland official website · South Australia official website
More Size Comparisons
All Queensland 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.