The map above shows Oregon and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oregon vs South Australia Geography
Land area
- Oregon has a land area of 95,997 square miles (248,630 km²), while South Australia has 380,048 square miles (984,321 km²).
- South Australia's land area is 4.0 times (296%) larger than Oregon's.
Total area
- Oregon: 98,379 square miles (254,799 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water.
- South Australia's total area is 3.9 times (286%) larger than Oregon's.
Length
- Oregon is 453 miles (730 km) long from north to south; South Australia is 1,078 miles (1,735 km).
- South Australia's north-south length is 2.4 times (138%) longer than Oregon's.
Width
- Oregon spans 445 miles (715 km) east to west; South Australia spans 825 miles (1,328 km).
- South Australia's east-west width is 1.9 times (85%) wider than Oregon's.
Highest point
- Oregon's highest point is Mount Hood at 11,232 feet (3,424 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m).
- Mount Hood is 6,524 feet higher than Mount Woodroffe.
Lowest point
- Oregon'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.
Oregon vs South Australia Population and History
Population
- Oregon has a population of 4,272,371 (2024), while South Australia has 1,908,182 (2025).
- Oregon's population is 2.2 times (124%) larger than South Australia's.
Population density
- Oregon: 44.5 people per square mile vs South Australia: 5.0.
- Oregon's population density is 8.9 times (790%) higher than South Australia's.
Largest metro area
- Oregon's largest metropolitan area is Portland-Vancouver-Hillsboro, OR-WA metro area (2,537,904 people) vs South Australia's Greater Adelaide (1,491,015).
- Portland-Vancouver-Hillsboro, OR-WA metro area's population is 1.7 times (70%) larger than Greater Adelaide's.
History
- Oregon: Admitted to the Union on February 14, 1859, as the 33rd state.
- South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
- In its current form, Oregon is the older of the two by 42 years.
Oregon vs South Australia Economy
GDP
- Oregon's GDP is $330.2 billion (2024) vs South Australia's $100.2 billion.
- Oregon's economic output is 3.3 times (230%) larger than South Australia's.
GDP per capita
- Oregon: $77,299 per person vs South Australia: $52,511.
- Oregon's GDP per capita is 1.5 times (47%) higher than South Australia's.
Official Websites
Oregon official website · South Australia official website
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More Size Comparisons
All Oregon 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.