The map above shows Oregon and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oregon vs Washington Geography
Land area: Oregon has a land area of 95,997 square miles (248,630 km²), while Washington has 66,455 square miles (172,119 km²). Oregon's land area is 1.4 times (44%) larger than Washington's.
Total area: Oregon: 98,379 square miles (254,799 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water. Oregon's total area is 1.4 times (38%) larger than Washington's.
Length: Oregon is 453 miles (730 km) long from north to south; Washington is 238 miles (383 km). Oregon's north-south length is 1.9 times (90%) longer than Washington's.
Width: Oregon spans 445 miles (715 km) east to west; Washington spans 399 miles (641 km). Oregon's east-west width is 1.1 times (12%) wider than Washington's.
Highest point: Oregon's highest point is Mount Hood at 11,232 feet (3,424 m); Washington's is Mount Rainier at 14,409 feet (4,392 m). Mount Rainier is 3,177 feet higher than Mount Hood.
Lowest point: Oregon's lowest point is Pacific Ocean at 0 feet; Washington's is Pacific Ocean at 0 feet. Both lowest points are at or near sea level.
Oregon vs Washington Population and History
Population: Oregon has a population of 4,272,371 (2024), while Washington has 7,958,180 (2024). Washington's population is 1.9 times (86%) larger than Oregon's.
Population density: Oregon: 44.5 people per square mile vs Washington: 119.8. Washington's population density is 2.7 times (169%) higher than Oregon's.
Biggest city: Oregon's biggest city is Portland with 635,749 people; Washington's is Seattle with 780,995. Seattle's population is 1.2 times (23%) larger than Portland's.
Largest metro area: Oregon's largest metropolitan area is Portland-Vancouver-Hillsboro, OR-WA metro area (2,537,904 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494). Seattle-Tacoma-Bellevue, WA metro area's population is 1.6 times (63%) larger than Portland-Vancouver-Hillsboro, OR-WA metro area's.
History: Oregon: Admitted to the Union on February 14, 1859, as the 33rd state. Washington: Admitted to the Union on November 11, 1889, as the 42nd state. In its current form, Oregon is the older of the two by 30 years.
Oregon vs Washington Economy
GDP: Oregon's GDP is $330.2 billion (2024) vs Washington's $856.0 billion. Washington's economic output is 2.6 times (159%) larger than Oregon's.
GDP per capita: Oregon: $77,299 per person vs Washington: $107,564. Washington's GDP per capita is 1.4 times (39%) higher than Oregon's.
Average income: Oregon: $70,823 vs Washington: $85,187 average income per person (per capita personal income). Washington's average income is 1.2 times (20%) higher than Oregon's.
Oregon vs Washington Counties
Number of counties: Oregon has 36 counties, while Washington has 39. Washington's county count is 1.1 times (8%) higher than Oregon's.
Biggest county by area: Oregon's largest county is Harney County at 10,134 square miles; Washington's is Okanogan County at 5,266 square miles. Harney County's land area is 1.9 times (92%) larger than Okanogan County's.
Smallest county by area: Oregon: Multnomah County (431 sq mi) vs Washington: San Juan County (174 sq mi). Multnomah County's land area is 2.5 times (148%) larger than San Juan County's.
Most populous county: Oregon: Multnomah County (795,897 people) vs Washington: King County (2,340,211 people). King County's population is 2.9 times (194%) larger than Multnomah County's.
Least populous county: Oregon: Wheeler County (1,456 people) vs Washington: Garfield County (2,404 people). Garfield County's population is 1.7 times (65%) larger than Wheeler County's.
Richest county: Oregon: Deschutes County ($86,176 per capita income) vs Washington: King County ($128,684). King County's income is 1.5 times (49%) richer than Deschutes County's.
Poorest county: Oregon: Malheur County ($42,974 per capita income) vs Washington: Ferry County ($50,456). Ferry County's income is 1.2 times (17%) richer than Malheur County's.
Oregon vs Washington Taxes
State income tax: Oregon has a top income tax rate of 9.9%, while Washington has a 9% tax on capital gains only.
Property tax: Oregon: 0.78% effective rate vs Washington: 0.79% of home value per year. The two are essentially equal.
Sales tax: Oregon: 0% combined state and average local rate vs Washington: 9.57%. Washington's combined rate is 9.57 percentage points higher.
Official Websites
Oregon official website · Washington official website
More Size Comparisons
All Oregon size comparisons · All Washington 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.