The map above shows Washington and Western Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Washington vs Western Australia Geography
Land area
- Washington has a land area of 66,455 square miles (172,119 km²), while Western Australia has 975,685 square miles (2,527,013 km²).
- Western Australia's land area is 14.7 times larger than Washington's.
Total area
- Washington: 71,301 square miles (184,668 km²) vs Western Australia: 975,685 square miles (2,527,013 km²), including inland and coastal water.
- Western Australia's total area is 13.7 times larger than Washington's.
Length
- Washington is 238 miles (383 km) long from north to south; Western Australia is 1,590 miles (2,558 km).
- Western Australia's north-south length is 6.7 times (568%) longer than Washington's.
Width
- Washington spans 399 miles (641 km) east to west; Western Australia spans 1,286 miles (2,069 km).
- Western Australia's east-west width is 3.2 times (222%) wider than Washington's.
Highest point
- Washington's highest point is Mount Rainier at 14,409 feet (4,392 m); Western Australia's is Mount Meharry at 4,098 feet (1,249 m).
- Mount Rainier is 10,311 feet higher than Mount Meharry.
Lowest point
- Washington's lowest point is Pacific Ocean at 0 feet; Western Australia's is Indian Ocean at 0 feet.
- Both lowest points are at or near sea level.
Washington vs Western Australia Population and History
Population
- Washington has a population of 7,958,180 (2024), while Western Australia has 3,061,672 (2025).
- Washington's population is 2.6 times (160%) larger than Western Australia's.
Population density
- Washington: 119.8 people per square mile vs Western Australia: 3.1.
- Washington's population density is 38.6 times higher than Western Australia's.
Largest metro area
- Washington's largest metropolitan area is Seattle-Tacoma-Bellevue, WA metro area (4,145,494 people) vs Western Australia's Greater Perth (2,452,765).
- Seattle-Tacoma-Bellevue, WA metro area's population is 1.7 times (69%) larger than Greater Perth's.
History
- Washington: Admitted to the Union on November 11, 1889, as the 42nd state.
- Western Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1829.
- In its current form, Washington is the older of the two by 12 years.
Washington vs Western Australia Economy
GDP
- Washington's GDP is $856.0 billion (2024) vs Western Australia's $304.6 billion.
- Washington's economic output is 2.8 times (181%) larger than Western Australia's.
GDP per capita
- Washington: $107,564 per person vs Western Australia: $99,488.
- Washington's GDP per capita is 1.1 times (8%) higher than Western Australia's.
Official Websites
Washington official website · Western Australia official website
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More Size Comparisons
All Washington 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.