The map above shows Mississippi and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Mississippi vs Washington Geography
Land area: Mississippi has a land area of 46,925 square miles (121,534 km²), while Washington has 66,455 square miles (172,119 km²). Washington's land area is 1.4 times (42%) larger than Mississippi's.
Total area: Mississippi: 48,436 square miles (125,448 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water. Washington's total area is 1.5 times (47%) larger than Mississippi's.
Length: Mississippi is 337 miles (542 km) long from north to south; Washington is 238 miles (383 km). Mississippi's north-south length is 1.4 times (42%) longer than Washington's.
Width: Mississippi spans 340 miles (547 km) east to west; Washington spans 399 miles (641 km). Washington's east-west width is 1.2 times (17%) wider than Mississippi's.
Highest point: Mississippi's highest point is Woodall Mountain at 805 feet (245 m); Washington's is Mount Rainier at 14,409 feet (4,392 m). Mount Rainier is 13,604 feet higher than Woodall Mountain.
Lowest point: Mississippi's lowest point is Gulf of Mexico at 0 feet; Washington's is Pacific Ocean at 0 feet. Both lowest points are at or near sea level.
Mississippi vs Washington Population and History
Population: Mississippi has a population of 2,943,045 (2024), while Washington has 7,958,180 (2024). Washington's population is 2.7 times (170%) larger than Mississippi's.
Population density: Mississippi: 62.7 people per square mile vs Washington: 119.8. Washington's population density is 1.9 times (91%) higher than Mississippi's.
Biggest city: Mississippi's biggest city is Jackson with 141,449 people; Washington's is Seattle with 780,995. Seattle's population is 5.5 times (452%) larger than Jackson's.
Largest metro area: Mississippi'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: Mississippi: Admitted to the Union on December 10, 1817, as the 20th state. Washington: Admitted to the Union on November 11, 1889, as the 42nd state. In its current form, Mississippi is the older of the two by 72 years.
Mississippi vs Washington Economy
GDP: Mississippi's GDP is $158.2 billion (2024) vs Washington's $856.0 billion. Washington's economic output is 5.4 times (441%) larger than Mississippi's.
GDP per capita: Mississippi: $53,751 per person vs Washington: $107,564. Washington's GDP per capita is 2.0 times (100%) higher than Mississippi's.
Average income: Mississippi: $52,074 vs Washington: $85,187 average income per person (per capita personal income). Washington's average income is 1.6 times (64%) higher than Mississippi's.
Mississippi vs Washington Counties
Number of counties: Mississippi has 82 counties, while Washington has 39. Mississippi's county count is 2.1 times (110%) higher than Washington's.
Biggest county by area: Mississippi's largest county is Yazoo County at 922 square miles; Washington's is Okanogan County at 5,266 square miles. Okanogan County's land area is 5.7 times (471%) larger than Yazoo County's.
Smallest county by area: Mississippi: Alcorn County (400 sq mi) vs Washington: San Juan County (174 sq mi). Alcorn County's land area is 2.3 times (130%) larger than San Juan County's.
Most populous county: Mississippi: Harrison County (213,730 people) vs Washington: King County (2,340,211 people). King County's population is 10.9 times larger than Harrison County's.
Least populous county: Mississippi: Issaquena County (1,295 people) vs Washington: Garfield County (2,404 people). Garfield County's population is 1.9 times (86%) larger than Issaquena County's.
Richest county: Mississippi: Madison County ($90,668 per capita income) vs Washington: King County ($128,684). King County's income is 1.4 times (42%) richer than Madison County's.
Poorest county: Mississippi: Issaquena County ($27,264 per capita income) vs Washington: Ferry County ($50,456). Ferry County's income is 1.9 times (85%) richer than Issaquena County's.
Mississippi vs Washington Taxes
State income tax: Mississippi has a top income tax rate of 4%, while Washington has a 9% tax on capital gains only.
Property tax: Mississippi: 0.65% effective rate vs Washington: 0.79% of home value per year. Washington's rate is 0.14 percentage points higher.
Sales tax: Mississippi: 7.06% combined state and average local rate vs Washington: 9.57%. Washington's combined rate is 2.51 percentage points higher.
Official Websites
Mississippi official website · Washington official website
More Size Comparisons
All Mississippi 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.