The map above shows Louisiana and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Louisiana vs South Australia Geography
Land area
- Louisiana has a land area of 43,213 square miles (111,921 km²), while South Australia has 380,048 square miles (984,321 km²).
- South Australia's land area is 8.8 times (779%) larger than Louisiana's.
Total area
- Louisiana: 52,375 square miles (135,652 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water.
- South Australia's total area is 7.3 times (626%) larger than Louisiana's.
Length
- Louisiana is 301 miles (484 km) long from north to south; South Australia is 1,078 miles (1,735 km).
- South Australia's north-south length is 3.6 times (258%) longer than Louisiana's.
Width
- Louisiana spans 356 miles (574 km) east to west; South Australia spans 825 miles (1,328 km).
- South Australia's east-west width is 2.3 times (132%) wider than Louisiana's.
Highest point
- Louisiana's highest point is Driskill Mountain at 533 feet (162 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m).
- Mount Woodroffe is 4,175 feet higher than Driskill Mountain.
Lowest point
- Louisiana's lowest point is New Orleans at -8 feet; South Australia's is Lake Eyre at -49 feet.
- South Australia's lowest point is 41 feet lower.
Louisiana vs South Australia Population and History
Population
- Louisiana has a population of 4,597,740 (2024), while South Australia has 1,908,182 (2025).
- Louisiana's population is 2.4 times (141%) larger than South Australia's.
Population density
- Louisiana: 106.4 people per square mile vs South Australia: 5.0.
- Louisiana's population density is 21.3 times higher than South Australia's.
Largest metro area
- Louisiana's largest metropolitan area is New Orleans-Metairie, LA metro area (966,230 people) vs South Australia's Greater Adelaide (1,491,015).
- Greater Adelaide's population is 1.5 times (54%) larger than New Orleans-Metairie, LA metro area's.
History
- Louisiana: Admitted to the Union on April 30, 1812, as the 18th state.
- South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
- In its current form, Louisiana is the older of the two by 89 years.
Louisiana vs South Australia Economy
GDP
- Louisiana's GDP is $329.2 billion (2024) vs South Australia's $100.2 billion.
- Louisiana's economic output is 3.3 times (229%) larger than South Australia's.
GDP per capita
- Louisiana: $71,594 per person vs South Australia: $52,511.
- Louisiana's GDP per capita is 1.4 times (36%) higher than South Australia's.
Official Websites
Louisiana official website · South Australia official website
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More Size Comparisons
All Louisiana 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.