The map above shows Washington and Japan side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Washington vs Japan Geography
Land area: Washington has a land area of 66,455 square miles (172,119 km²), while Japan has 140,752 square miles (364,546 km²). Japan's land area is 2.1 times (112%) larger than Washington's.
Total area: Washington: 71,301 square miles (184,668 km²) vs Japan: 145,937 square miles (377,975 km²), including inland and coastal water. Japan's total area is 2.0 times (105%) larger than Washington's.
Length: Washington is 238 miles (383 km) long from north to south; Japan is 1,557 miles (2,505 km). Japan's north-south length is 6.5 times (554%) longer than Washington's.
Width: Washington spans 399 miles (641 km) east to west; Japan spans 1,568 miles (2,524 km). Japan's east-west width is 3.9 times (293%) wider than Washington's.
Highest point: Washington's highest point is Mount Rainier at 14,409 feet (4,392 m); Japan's is Mount Fuji at 12,388 feet (3,776 m). Mount Rainier is 2,021 feet higher than Mount Fuji.
Lowest point: Washington's lowest point is Pacific Ocean at 0 feet; Japan's is Hachirogata at -13 feet. Japan's lowest point is 13 feet lower.
Washington vs Japan Population and History
Population: Washington has a population of 7,958,180 (2024), while Japan has 122,680,000 (2026). Japan's population is 15.4 times larger than Washington's.
Population density: Washington: 119.8 people per square mile vs Japan: 871.6. Japan's population density is 7.3 times (628%) higher than Washington's.
Biggest city: Washington's biggest city is Seattle with 780,995 people; Japan's is Tokyo with 13,515,271. Tokyo's population is 17.3 times larger than Seattle's.
Largest metro area: Washington's largest metropolitan area is Seattle-Tacoma-Bellevue, WA metro area (4,145,494 people) vs Japan's Tokyo (33,412,512). Tokyo's population is 8.1 times (706%) larger than Seattle-Tacoma-Bellevue, WA metro area's.
History: Washington: Admitted to the Union on November 11, 1889, as the 42nd state. Japan: An independent state for over two millennia; the current constitution dates from 1947. In its current form, Japan is the older of the two by 1,229 years.
Washington vs Japan Economy
GDP: Washington's GDP is $856.0 billion (2024) vs Japan's $4,435.2 billion. Japan's economic output is 5.2 times (418%) larger than Washington's.
GDP per capita: Washington: $107,564 per person vs Japan: $35,951. Washington's GDP per capita is 3.0 times (199%) higher than Japan's.
Average income: Washington: $85,187 vs Japan: $38,340 average income per person (per capita personal income). Washington's average income is 2.2 times (122%) higher than Japan's.
Official Websites
Washington official website · Japan official website
More Size Comparisons
All Washington size comparisons · All Japan 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.