The map above shows Kansas and Missouri side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Kansas vs Missouri Geography
Land area
- Kansas has a land area of 81,759 square miles (211,754 km²), while Missouri has 68,746 square miles (178,052 km²).
- Kansas' land area is 1.2 times (19%) larger than Missouri's.
Total area
- Kansas: 82,278 square miles (213,100 km²) vs Missouri: 69,707 square miles (180,540 km²), including inland and coastal water.
- Kansas' total area is 1.2 times (18%) larger than Missouri's.
Length
- Kansas is 207 miles (334 km) long from north to south; Missouri is 328 miles (529 km).
- Missouri's north-south length is 1.6 times (58%) longer than Kansas'.
Width
- Kansas spans 401 miles (645 km) east to west; Missouri spans 437 miles (703 km).
- Missouri's east-west width is 1.1 times (9%) wider than Kansas'.
Highest point
- Kansas's highest point is Mount Sunflower at 4,040 feet (1,231 m); Missouri's is Taum Sauk Mountain at 1,771 feet (540 m).
- Mount Sunflower is 2,269 feet higher than Taum Sauk Mountain.
Lowest point
- Kansas's lowest point is Verdigris River at 679 feet; Missouri's is St. Francis River at 230 feet.
- Missouri's lowest point is 449 feet lower.
Kansas vs Missouri Population and History
Population
- Kansas has a population of 2,970,606 (2024), while Missouri has 6,245,466 (2024).
- Missouri's population is 2.1 times (110%) larger than Kansas'.
Population density
- Kansas: 36.3 people per square mile vs Missouri: 90.8.
- Missouri's population density is 2.5 times (150%) higher than Kansas'.
Biggest city
- Kansas's biggest city is Wichita with 400,991 people; Missouri's is Kansas City with 516,032.
- Kansas City's population is 1.3 times (29%) larger than Wichita's.
Largest metro area
- Kansas's largest metropolitan area is Kansas City, MO-KS metro area (2,253,579 people) vs Missouri's St. Louis, MO-IL metro area (2,811,927).
- St. Louis, MO-IL metro area's population is 1.2 times (25%) larger than Kansas City, MO-KS metro area's.
History
- Kansas: Admitted to the Union on January 29, 1861, as the 34th state.
- Missouri: Admitted to the Union on August 10, 1821, as the 24th state.
- In its current form, Missouri is the older of the two by 40 years.
Kansas vs Missouri Economy
GDP
- Kansas's GDP is $230.5 billion (2024) vs Missouri's $448.7 billion.
- Missouri's economic output is 1.9 times (95%) larger than Kansas'.
GDP per capita
- Kansas: $77,601 per person vs Missouri: $71,846.
- Kansas' GDP per capita is 1.1 times (8%) higher than Missouri's.
Average income
- Kansas: $65,856 vs Missouri: $64,920 average income per person (per capita personal income).
- Kansas and Missouri have about the same average income.
Kansas vs Missouri Counties
Number of counties
- Kansas has 105 counties, while Missouri has 115.
- Missouri's county count is 1.1 times (10%) higher than Kansas'.
Biggest county by area
- Kansas's largest county is Butler County at 1,430 square miles; Missouri's is Texas County at 1,177 square miles.
- Butler County's land area is 1.2 times (21%) larger than Texas County's.
Smallest county by area
- Kansas: Wyandotte County (152 sq mi) vs Missouri: St. Louis city (62 sq mi).
- Wyandotte County's land area is 2.5 times (146%) larger than St. Louis city's.
Most populous county
- Kansas: Johnson County (632,276 people) vs Missouri: St. Louis County (992,929 people).
- St. Louis County's population is 1.6 times (57%) larger than Johnson County's.
Least populous county
- Kansas: Greeley County (1,152 people) vs Missouri: Worth County (1,872 people).
- Worth County's population is 1.6 times (63%) larger than Greeley County's.
Richest county
- Kansas: Greeley County ($134,780 per capita income) vs Missouri: St. Louis County ($104,775).
- Greeley County's income is 1.3 times (29%) richer than St. Louis County's.
Poorest county
- Kansas: Wyandotte County ($42,878 per capita income) vs Missouri: Douglas County ($40,515).
- Wyandotte County's income is 1.1 times (6%) richer than Douglas County's.
Kansas vs Missouri Taxes
State income tax
- Kansas has a top income tax rate of 5.58%, while Missouri has a top income tax rate of 4.7%.
- Kansas's top rate is 0.88 percentage points higher.
Property tax
- Kansas: 1.25% effective rate vs Missouri: 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 Missouri: 8.44%.
- Kansas's combined rate is 0.27 percentage points higher.
Official Websites
Kansas official website · Missouri official website
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More Size Comparisons
All Kansas size comparisons · All Missouri 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.