The map above shows Arkansas and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arkansas vs South Australia Geography
Land area
- Arkansas has a land area of 51,992 square miles (134,658 km²), while South Australia has 380,048 square miles (984,321 km²).
- South Australia's land area is 7.3 times (631%) larger than Arkansas'.
Total area
- Arkansas: 53,198 square miles (137,781 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water.
- South Australia's total area is 7.1 times (614%) larger than Arkansas'.
Length
- Arkansas is 243 miles (392 km) long from north to south; South Australia is 1,078 miles (1,735 km).
- South Australia's north-south length is 4.4 times (344%) longer than Arkansas'.
Width
- Arkansas spans 279 miles (449 km) east to west; South Australia spans 825 miles (1,328 km).
- South Australia's east-west width is 3.0 times (196%) wider than Arkansas'.
Highest point
- Arkansas's highest point is Mount Magazine at 2,752 feet (839 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m).
- Mount Woodroffe is 1,956 feet higher than Mount Magazine.
Lowest point
- Arkansas's lowest point is Ouachita River at 55 feet; South Australia's is Lake Eyre at -49 feet.
- South Australia's lowest point is 104 feet lower.
Arkansas vs South Australia Population and History
Population
- Arkansas has a population of 3,088,354 (2024), while South Australia has 1,908,182 (2025).
- Arkansas' population is 1.6 times (62%) larger than South Australia's.
Population density
- Arkansas: 59.4 people per square mile vs South Australia: 5.0.
- Arkansas' population density is 11.9 times higher than South Australia's.
Largest metro area
- Arkansas's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 people) vs South Australia's Greater Adelaide (1,491,015).
- Greater Adelaide's population is 1.1 times (11%) larger than Memphis, TN-MS-AR metro area's.
History
- Arkansas: Admitted to the Union on June 15, 1836, as the 25th state.
- South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
- In its current form, Arkansas is the older of the two by 65 years.
Arkansas vs South Australia Economy
GDP
- Arkansas's GDP is $188.3 billion (2024) vs South Australia's $100.2 billion.
- Arkansas' economic output is 1.9 times (88%) larger than South Australia's.
GDP per capita
- Arkansas: $60,984 per person vs South Australia: $52,511.
- Arkansas' GDP per capita is 1.2 times (16%) higher than South Australia's.
Official Websites
Arkansas official website · South Australia official website
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More Size Comparisons
All Arkansas 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.