The map above shows Kentucky and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Kentucky vs South Australia Geography
Land area
- Kentucky has a land area of 39,485 square miles (102,267 km²), while South Australia has 380,048 square miles (984,321 km²).
- South Australia's land area is 9.6 times (863%) larger than Kentucky's.
Total area
- Kentucky: 40,406 square miles (104,651 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water.
- South Australia's total area is 9.4 times (841%) larger than Kentucky's.
Length
- Kentucky is 257 miles (414 km) long from north to south; South Australia is 1,078 miles (1,735 km).
- South Australia's north-south length is 4.2 times (319%) longer than Kentucky's.
Width
- Kentucky spans 418 miles (672 km) east to west; South Australia spans 825 miles (1,328 km).
- South Australia's east-west width is 2.0 times (97%) wider than Kentucky's.
Highest point
- Kentucky's highest point is Black Mountain at 4,134 feet (1,260 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m).
- Mount Woodroffe is 574 feet higher than Black Mountain.
Lowest point
- Kentucky's lowest point is Mississippi River at 270 feet; South Australia's is Lake Eyre at -49 feet.
- South Australia's lowest point is 319 feet lower.
Kentucky vs South Australia Population and History
Population
- Kentucky has a population of 4,588,372 (2024), while South Australia has 1,908,182 (2025).
- Kentucky's population is 2.4 times (140%) larger than South Australia's.
Population density
- Kentucky: 116.2 people per square mile vs South Australia: 5.0.
- Kentucky's population density is 23.2 times higher than South Australia's.
Largest metro area
- Kentucky's largest metropolitan area is Cincinnati, OH-KY-IN metro area (2,302,815 people) vs South Australia's Greater Adelaide (1,491,015).
- Cincinnati, OH-KY-IN metro area's population is 1.5 times (54%) larger than Greater Adelaide's.
History
- Kentucky: Admitted to the Union on June 1, 1792, as the 15th state.
- South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
- In its current form, Kentucky is the older of the two by 109 years.
Kentucky vs South Australia Economy
GDP
- Kentucky's GDP is $295.4 billion (2024) vs South Australia's $100.2 billion.
- Kentucky's economic output is 2.9 times (195%) larger than South Australia's.
GDP per capita
- Kentucky: $64,375 per person vs South Australia: $52,511.
- Kentucky's GDP per capita is 1.2 times (23%) higher than South Australia's.
Official Websites
Kentucky official website · South Australia official website
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More Size Comparisons
All Kentucky 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.