The map above shows Arkansas and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arkansas vs Washington Geography
Land area: Arkansas has a land area of 51,992 square miles (134,658 km²), while Washington has 66,455 square miles (172,119 km²). Washington's land area is 1.3 times (28%) larger than Arkansas'.
Total area: Arkansas: 53,198 square miles (137,781 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water. Washington's total area is 1.3 times (34%) larger than Arkansas'.
Length: Arkansas is 243 miles (392 km) long from north to south; Washington is 238 miles (383 km). Arkansas and Washington have about the same north-south length.
Width: Arkansas spans 279 miles (449 km) east to west; Washington spans 399 miles (641 km). Washington's east-west width is 1.4 times (43%) wider than Arkansas'.
Highest point: Arkansas's highest point is Mount Magazine at 2,752 feet (839 m); Washington's is Mount Rainier at 14,409 feet (4,392 m). Mount Rainier is 11,657 feet higher than Mount Magazine.
Lowest point: Arkansas's lowest point is Ouachita River at 55 feet; Washington's is Pacific Ocean at 0 feet. Washington's lowest point is 55 feet lower.
Arkansas vs Washington Population and History
Population: Arkansas has a population of 3,088,354 (2024), while Washington has 7,958,180 (2024). Washington's population is 2.6 times (158%) larger than Arkansas'.
Population density: Arkansas: 59.4 people per square mile vs Washington: 119.8. Washington's population density is 2.0 times (102%) higher than Arkansas'.
Biggest city: Arkansas's biggest city is Little Rock with 204,774 people; Washington's is Seattle with 780,995. Seattle's population is 3.8 times (281%) larger than Little Rock's.
Largest metro area: Arkansas's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494). Seattle-Tacoma-Bellevue, WA metro area's population is 3.1 times (210%) larger than Memphis, TN-MS-AR metro area's.
History: Arkansas: Admitted to the Union on June 15, 1836, as the 25th state. Washington: Admitted to the Union on November 11, 1889, as the 42nd state. In its current form, Arkansas is the older of the two by 53 years.
Arkansas vs Washington Economy
GDP: Arkansas's GDP is $188.3 billion (2024) vs Washington's $856.0 billion. Washington's economic output is 4.5 times (355%) larger than Arkansas'.
GDP per capita: Arkansas: $60,984 per person vs Washington: $107,564. Washington's GDP per capita is 1.8 times (76%) higher than Arkansas'.
Average income: Arkansas: $59,320 vs Washington: $85,187 average income per person (per capita personal income). Washington's average income is 1.4 times (44%) higher than Arkansas'.
Arkansas vs Washington Counties
Number of counties: Arkansas has 75 counties, while Washington has 39. Arkansas' county count is 1.9 times (92%) higher than Washington's.
Biggest county by area: Arkansas's largest county is Union County at 1,039 square miles; Washington's is Okanogan County at 5,266 square miles. Okanogan County's land area is 5.1 times (407%) larger than Union County's.
Smallest county by area: Arkansas: Lafayette County (530 sq mi) vs Washington: San Juan County (174 sq mi). Lafayette County's land area is 3.0 times (204%) larger than San Juan County's.
Most populous county: Arkansas: Pulaski County (401,209 people) vs Washington: King County (2,340,211 people). King County's population is 5.8 times (483%) larger than Pulaski County's.
Least populous county: Arkansas: Calhoun County (4,690 people) vs Washington: Garfield County (2,404 people). Calhoun County's population is 2.0 times (95%) larger than Garfield County's.
Richest county: Arkansas: Benton County ($120,594 per capita income) vs Washington: King County ($128,684). King County's income is 1.1 times (7%) richer than Benton County's.
Poorest county: Arkansas: Lincoln County ($36,032 per capita income) vs Washington: Ferry County ($50,456). Ferry County's income is 1.4 times (40%) richer than Lincoln County's.
Arkansas vs Washington Taxes
State income tax: Arkansas has a top income tax rate of 3.9%, while Washington has a 9% tax on capital gains only.
Property tax: Arkansas: 0.52% effective rate vs Washington: 0.79% of home value per year. Washington's rate is 0.27 percentage points higher.
Sales tax: Arkansas: 9.48% combined state and average local rate vs Washington: 9.57%. Washington's combined rate is 0.09 percentage points higher.
Official Websites
Arkansas official website · Washington official website
More Size Comparisons
All Arkansas 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.