The map above shows Missouri and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Missouri vs Oklahoma Geography
Land area
- Missouri has a land area of 68,746 square miles (178,052 km²), while Oklahoma has 68,597 square miles (177,665 km²).
- Missouri and Oklahoma have about the same land area.
Total area
- Missouri: 69,707 square miles (180,540 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water.
- Missouri and Oklahoma have about the same total area.
Length
- Missouri is 328 miles (529 km) long from north to south; Oklahoma is 533 miles (857 km).
- Oklahoma's north-south length is 1.6 times (63%) longer than Missouri's.
Width
- Missouri spans 437 miles (703 km) east to west; Oklahoma spans 490 miles (789 km).
- Oklahoma's east-west width is 1.1 times (12%) wider than Missouri's.
Highest point
- Missouri's highest point is Taum Sauk Mountain at 1,771 feet (540 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m).
- Black Mesa is 3,209 feet higher than Taum Sauk Mountain.
Lowest point
- Missouri's lowest point is St. Francis River at 230 feet; Oklahoma's is Little River at 289 feet.
- Missouri's lowest point is 59 feet lower.
Missouri vs Oklahoma Population and History
Population
- Missouri has a population of 6,245,466 (2024), while Oklahoma has 4,095,393 (2024).
- Missouri's population is 1.5 times (52%) larger than Oklahoma's.
Population density
- Missouri: 90.8 people per square mile vs Oklahoma: 59.7.
- Missouri's population density is 1.5 times (52%) higher than Oklahoma's.
Biggest city
- Missouri's biggest city is Kansas City with 516,032 people; Oklahoma's is Oklahoma City with 712,919.
- Oklahoma City's population is 1.4 times (38%) larger than Kansas City's.
Largest metro area
- Missouri's largest metropolitan area is St. Louis, MO-IL metro area (2,811,927 people) vs Oklahoma's Oklahoma City, OK metro area (1,497,821).
- St. Louis, MO-IL metro area's population is 1.9 times (88%) larger than Oklahoma City, OK metro area's.
History
- Missouri: Admitted to the Union on August 10, 1821, as the 24th state.
- Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state.
- In its current form, Missouri is the older of the two by 86 years.
Missouri vs Oklahoma Economy
GDP
- Missouri's GDP is $448.7 billion (2024) vs Oklahoma's $263.7 billion.
- Missouri's economic output is 1.7 times (70%) larger than Oklahoma's.
GDP per capita
- Missouri: $71,846 per person vs Oklahoma: $64,388.
- Missouri's GDP per capita is 1.1 times (12%) higher than Oklahoma's.
Average income
- Missouri: $64,920 vs Oklahoma: $63,708 average income per person (per capita personal income).
- Missouri and Oklahoma have about the same average income.
Missouri vs Oklahoma Counties
Number of counties
- Missouri has 115 counties, while Oklahoma has 77.
- Missouri's county count is 1.5 times (49%) higher than Oklahoma's.
Biggest county by area
- Missouri's largest county is Texas County at 1,177 square miles; Oklahoma's is Osage County at 2,247 square miles.
- Osage County's land area is 1.9 times (91%) larger than Texas County's.
Smallest county by area
- Missouri: St. Louis city (62 sq mi) vs Oklahoma: Marshall County (372 sq mi).
- Marshall County's land area is 6.0 times (502%) larger than St. Louis city's.
Most populous county
- Missouri: St. Louis County (992,929 people) vs Oklahoma: Oklahoma County (816,490 people).
- St. Louis County's population is 1.2 times (22%) larger than Oklahoma County's.
Least populous county
- Missouri: Worth County (1,872 people) vs Oklahoma: Cimarron County (2,133 people).
- Cimarron County's population is 1.1 times (14%) larger than Worth County's.
Richest county
- Missouri: St. Louis County ($104,775 per capita income) vs Oklahoma: Washington County ($126,749).
- Washington County's income is 1.2 times (21%) richer than St. Louis County's.
Poorest county
- Missouri: Douglas County ($40,515 per capita income) vs Oklahoma: Atoka County ($38,709).
- Douglas County and Atoka County have about the same income.
Missouri vs Oklahoma Taxes
State income tax
- Missouri has a top income tax rate of 4.7%, while Oklahoma has a top income tax rate of 4.5%.
- Missouri's top rate is 0.2 percentage points higher.
Property tax
- Missouri: 0.79% effective rate vs Oklahoma: 0.75% of home value per year.
- Missouri's rate is 0.04 percentage points higher.
Sales tax
- Missouri: 8.44% combined state and average local rate vs Oklahoma: 9.06%.
- Oklahoma's combined rate is 0.62 percentage points higher.
Official Websites
Missouri official website · Oklahoma official website
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More Size Comparisons
All Missouri size comparisons · All Oklahoma 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.