The map above shows Utah and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Utah vs Washington Geography
Land area: Utah has a land area of 82,596 square miles (213,922 km²), while Washington has 66,455 square miles (172,119 km²). Utah's land area is 1.2 times (24%) larger than Washington's.
Total area: Utah: 84,898 square miles (219,885 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water. Utah's total area is 1.2 times (19%) larger than Washington's.
Length: Utah is 436 miles (702 km) long from north to south; Washington is 238 miles (383 km). Utah's north-south length is 1.8 times (83%) longer than Washington's.
Width: Utah spans 268 miles (431 km) east to west; Washington spans 399 miles (641 km). Washington's east-west width is 1.5 times (49%) wider than Utah's.
Highest point: Utah's highest point is Kings Peak at 13,512 feet (4,118 m); Washington's is Mount Rainier at 14,409 feet (4,392 m). Mount Rainier is 897 feet higher than Kings Peak.
Lowest point: Utah's lowest point is Beaver Dam Wash at 2,180 feet; Washington's is Pacific Ocean at 0 feet. Washington's lowest point is 2,180 feet lower.
Utah vs Washington Population and History
Population: Utah has a population of 3,503,613 (2024), while Washington has 7,958,180 (2024). Washington's population is 2.3 times (127%) larger than Utah's.
Population density: Utah: 42.4 people per square mile vs Washington: 119.8. Washington's population density is 2.8 times (183%) higher than Utah's.
Biggest city: Utah's biggest city is Salt Lake City with 217,783 people; Washington's is Seattle with 780,995. Seattle's population is 3.6 times (259%) larger than Salt Lake City's.
Largest metro area: Utah's largest metropolitan area is Salt Lake City-Murray, UT metro area (1,300,762 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494). Seattle-Tacoma-Bellevue, WA metro area's population is 3.2 times (219%) larger than Salt Lake City-Murray, UT metro area's.
History: Utah: Admitted to the Union on January 4, 1896, as the 45th state. Washington: Admitted to the Union on November 11, 1889, as the 42nd state. In its current form, Washington is the older of the two by 7 years.
Utah vs Washington Economy
GDP: Utah's GDP is $299.5 billion (2024) vs Washington's $856.0 billion. Washington's economic output is 2.9 times (186%) larger than Utah's.
GDP per capita: Utah: $85,475 per person vs Washington: $107,564. Washington's GDP per capita is 1.3 times (26%) higher than Utah's.
Average income: Utah: $67,333 vs Washington: $85,187 average income per person (per capita personal income). Washington's average income is 1.3 times (27%) higher than Utah's.
Utah vs Washington Counties
Number of counties: Utah has 29 counties, while Washington has 39. Washington's county count is 1.3 times (34%) higher than Utah's.
Biggest county by area: Utah's largest county is San Juan County at 7,824 square miles; Washington's is Okanogan County at 5,266 square miles. San Juan County's land area is 1.5 times (49%) larger than Okanogan County's.
Smallest county by area: Utah: Davis County (325 sq mi) vs Washington: San Juan County (174 sq mi). Davis County's land area is 1.9 times (87%) larger than San Juan County's.
Most populous county: Utah: Salt Lake County (1,216,274 people) vs Washington: King County (2,340,211 people). King County's population is 1.9 times (92%) larger than Salt Lake County's.
Least populous county: Utah: Daggett County (956 people) vs Washington: Garfield County (2,404 people). Garfield County's population is 2.5 times (151%) larger than Daggett County's.
Richest county: Utah: Summit County ($280,510 per capita income) vs Washington: King County ($128,684). Summit County's income is 2.2 times (118%) richer than King County's.
Poorest county: Utah: Beaver County ($39,179 per capita income) vs Washington: Ferry County ($50,456). Ferry County's income is 1.3 times (29%) richer than Beaver County's.
Utah vs Washington Taxes
State income tax: Utah has a top income tax rate of 4.5%, while Washington has a 9% tax on capital gains only.
Property tax: Utah: 0.49% effective rate vs Washington: 0.79% of home value per year. Washington's rate is 0.3 percentage points higher.
Sales tax: Utah: 7.42% combined state and average local rate vs Washington: 9.57%. Washington's combined rate is 2.15 percentage points higher.
Official Websites
Utah official website · Washington official website
More Size Comparisons
All Utah 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.