The map above shows Kansas and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Kansas vs Washington Geography
Land area
- Kansas has a land area of 81,759 square miles (211,754 km²), while Washington has 66,455 square miles (172,119 km²).
- Kansas' land area is 1.2 times (23%) larger than Washington's.
Total area
- Kansas: 82,278 square miles (213,100 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water.
- Kansas' total area is 1.2 times (15%) larger than Washington's.
Length
- Kansas is 207 miles (334 km) long from north to south; Washington is 238 miles (383 km).
- Washington's north-south length is 1.1 times (15%) longer than Kansas'.
Width
- Kansas spans 401 miles (645 km) east to west; Washington spans 399 miles (641 km).
- Kansas and Washington have about the same east-west width.
Highest point
- Kansas's highest point is Mount Sunflower at 4,040 feet (1,231 m); Washington's is Mount Rainier at 14,409 feet (4,392 m).
- Mount Rainier is 10,369 feet higher than Mount Sunflower.
Lowest point
- Kansas's lowest point is Verdigris River at 679 feet; Washington's is Pacific Ocean at 0 feet.
- Washington's lowest point is 679 feet lower.
Kansas vs Washington Population and History
Population
- Kansas has a population of 2,970,606 (2024), while Washington has 7,958,180 (2024).
- Washington's population is 2.7 times (168%) larger than Kansas'.
Population density
- Kansas: 36.3 people per square mile vs Washington: 119.8.
- Washington's population density is 3.3 times (230%) higher than Kansas'.
Biggest city
- Kansas's biggest city is Wichita with 400,991 people; Washington's is Seattle with 780,995.
- Seattle's population is 1.9 times (95%) larger than Wichita's.
Largest metro area
- Kansas's largest metropolitan area is Kansas City, MO-KS metro area (2,253,579 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494).
- Seattle-Tacoma-Bellevue, WA metro area's population is 1.8 times (84%) larger than Kansas City, MO-KS metro area's.
History
- Kansas: Admitted to the Union on January 29, 1861, as the 34th state.
- Washington: Admitted to the Union on November 11, 1889, as the 42nd state.
- In its current form, Kansas is the older of the two by 28 years.
Kansas vs Washington Economy
GDP
- Kansas's GDP is $230.5 billion (2024) vs Washington's $856.0 billion.
- Washington's economic output is 3.7 times (271%) larger than Kansas'.
GDP per capita
- Kansas: $77,601 per person vs Washington: $107,564.
- Washington's GDP per capita is 1.4 times (39%) higher than Kansas'.
Average income
- Kansas: $65,856 vs Washington: $85,187 average income per person (per capita personal income).
- Washington's average income is 1.3 times (29%) higher than Kansas'.
Kansas vs Washington Counties
Number of counties
- Kansas has 105 counties, while Washington has 39.
- Kansas' county count is 2.7 times (169%) higher than Washington's.
Biggest county by area
- Kansas's largest county is Butler County at 1,430 square miles; Washington's is Okanogan County at 5,266 square miles.
- Okanogan County's land area is 3.7 times (268%) larger than Butler County's.
Smallest county by area
- Kansas: Wyandotte County (152 sq mi) vs Washington: San Juan County (174 sq mi).
- San Juan County's land area is 1.1 times (15%) larger than Wyandotte County's.
Most populous county
- Kansas: Johnson County (632,276 people) vs Washington: King County (2,340,211 people).
- King County's population is 3.7 times (270%) larger than Johnson County's.
Least populous county
- Kansas: Greeley County (1,152 people) vs Washington: Garfield County (2,404 people).
- Garfield County's population is 2.1 times (109%) larger than Greeley County's.
Richest county
- Kansas: Greeley County ($134,780 per capita income) vs Washington: King County ($128,684).
- Greeley County's income is 1.0 times (5%) richer than King County's.
Poorest county
- Kansas: Wyandotte County ($42,878 per capita income) vs Washington: Ferry County ($50,456).
- Ferry County's income is 1.2 times (18%) richer than Wyandotte County's.
Kansas vs Washington Taxes
State income tax
- Kansas has a top income tax rate of 5.58%, while Washington has a 9% tax on capital gains only.
Property tax
- Kansas: 1.25% effective rate vs Washington: 0.79% of home value per year.
- Kansas's rate is 0.46 percentage points higher.
Sales tax
- Kansas: 8.71% combined state and average local rate vs Washington: 9.57%.
- Washington's combined rate is 0.86 percentage points higher.
Official Websites
Kansas official website · Washington official website
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More Size Comparisons
All Kansas 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.