The map above shows California and Western Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
California vs Western Australia Geography
Land area
- California has a land area of 155,859 square miles (403,673 km²), while Western Australia has 975,685 square miles (2,527,013 km²).
- Western Australia's land area is 6.3 times (526%) larger than California's.
Total area
- California: 163,694 square miles (423,965 km²) vs Western Australia: 975,685 square miles (2,527,013 km²), including inland and coastal water.
- Western Australia's total area is 6.0 times (496%) larger than California's.
Length
- California is 761 miles (1,224 km) long from north to south; Western Australia is 1,590 miles (2,558 km).
- Western Australia's north-south length is 2.1 times (109%) longer than California's.
Width
- California spans 706 miles (1,137 km) east to west; Western Australia spans 1,286 miles (2,069 km).
- Western Australia's east-west width is 1.8 times (82%) wider than California's.
Highest point
- California's highest point is Mount Whitney at 14,484 feet (4,415 m); Western Australia's is Mount Meharry at 4,098 feet (1,249 m).
- Mount Whitney is 10,386 feet higher than Mount Meharry.
Lowest point
- California's lowest point is Death Valley at -279 feet; Western Australia's is Indian Ocean at 0 feet.
- California's lowest point is 279 feet lower.
California vs Western Australia Population and History
Population
- California has a population of 39,431,263 (2024), while Western Australia has 3,061,672 (2025).
- California's population is 12.9 times larger than Western Australia's.
Population density
- California: 253.0 people per square mile vs Western Australia: 3.1.
- California's population density is 81.6 times higher than Western Australia's.
Largest metro area
- California's largest metropolitan area is Los Angeles-Long Beach-Anaheim, CA metro area (12,927,614 people) vs Western Australia's Greater Perth (2,452,765).
- Los Angeles-Long Beach-Anaheim, CA metro area's population is 5.3 times (427%) larger than Greater Perth's.
History
- California: Admitted to the Union on September 9, 1850, as the 31st state.
- Western Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1829.
- In its current form, California is the older of the two by 51 years.
California vs Western Australia Economy
GDP
- California's GDP is $4,048.1 billion (2024) vs Western Australia's $304.6 billion.
- California's economic output is 13.3 times larger than Western Australia's.
GDP per capita
- California: $102,662 per person vs Western Australia: $99,488.
- California and Western Australia have about the same GDP per capita.
Official Websites
California official website · Western Australia official website
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More Size Comparisons
All California size comparisons · All Western 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.