The map above shows Missouri and Ohio side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Missouri vs Ohio Geography
Land area
- Missouri has a land area of 68,746 square miles (178,052 km²), while Ohio has 40,859 square miles (105,824 km²).
- Missouri's land area is 1.7 times (68%) larger than Ohio's.
Total area
- Missouri: 69,707 square miles (180,540 km²) vs Ohio: 44,826 square miles (116,098 km²), including inland and coastal water.
- Missouri's total area is 1.6 times (56%) larger than Ohio's.
Length
- Missouri is 328 miles (529 km) long from north to south; Ohio is 291 miles (468 km).
- Missouri's north-south length is 1.1 times (13%) longer than Ohio's.
Width
- Missouri spans 437 miles (703 km) east to west; Ohio spans 317 miles (510 km).
- Missouri's east-west width is 1.4 times (38%) wider than Ohio's.
Highest point
- Missouri's highest point is Taum Sauk Mountain at 1,771 feet (540 m); Ohio's is Campbell Hill at 1,547 feet (472 m).
- Taum Sauk Mountain is 224 feet higher than Campbell Hill.
Lowest point
- Missouri's lowest point is St. Francis River at 230 feet; Ohio's is Ohio River at 455 feet.
- Missouri's lowest point is 225 feet lower.
Missouri vs Ohio Population and History
Population
- Missouri has a population of 6,245,466 (2024), while Ohio has 11,883,304 (2024).
- Ohio's population is 1.9 times (90%) larger than Missouri's.
Population density
- Missouri: 90.8 people per square mile vs Ohio: 290.8.
- Ohio's population density is 3.2 times (220%) higher than Missouri's.
Biggest city
- Missouri's biggest city is Kansas City with 516,032 people; Ohio's is Columbus with 933,263.
- Columbus' population is 1.8 times (81%) 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 Ohio's Cincinnati, OH-KY-IN metro area (2,302,815).
- St. Louis, MO-IL metro area's population is 1.2 times (22%) larger than Cincinnati, OH-KY-IN metro area's.
History
- Missouri: Admitted to the Union on August 10, 1821, as the 24th state.
- Ohio: Admitted to the Union on March 1, 1803, as the 17th state.
- In its current form, Ohio is the older of the two by 18 years.
Missouri vs Ohio Economy
GDP
- Missouri's GDP is $448.7 billion (2024) vs Ohio's $923.1 billion.
- Ohio's economic output is 2.1 times (106%) larger than Missouri's.
GDP per capita
- Missouri: $71,846 per person vs Ohio: $77,684.
- Ohio's GDP per capita is 1.1 times (8%) higher than Missouri's.
Average income
- Missouri: $64,920 vs Ohio: $64,464 average income per person (per capita personal income).
- Missouri and Ohio have about the same average income.
Missouri vs Ohio Counties
Number of counties
- Missouri has 115 counties, while Ohio has 88.
- Missouri's county count is 1.3 times (31%) higher than Ohio's.
Biggest county by area
- Missouri's largest county is Texas County at 1,177 square miles; Ohio's is Ashtabula County at 702 square miles.
- Texas County's land area is 1.7 times (68%) larger than Ashtabula County's.
Smallest county by area
- Missouri: St. Louis city (62 sq mi) vs Ohio: Lake County (229 sq mi).
- Lake County's land area is 3.7 times (272%) larger than St. Louis city's.
Most populous county
- Missouri: St. Louis County (992,929 people) vs Ohio: Franklin County (1,356,303 people).
- Franklin County's population is 1.4 times (37%) larger than St. Louis County's.
Least populous county
- Missouri: Worth County (1,872 people) vs Ohio: Vinton County (12,545 people).
- Vinton County's population is 6.7 times (570%) larger than Worth County's.
Richest county
- Missouri: St. Louis County ($104,775 per capita income) vs Ohio: Delaware County ($96,573).
- St. Louis County's income is 1.1 times (8%) richer than Delaware County's.
Poorest county
- Missouri: Douglas County ($40,515 per capita income) vs Ohio: Noble County ($34,940).
- Douglas County's income is 1.2 times (16%) richer than Noble County's.
Missouri vs Ohio Taxes
State income tax
- Missouri has a top income tax rate of 4.7%, while Ohio has a top income tax rate of 2.75%.
- Missouri's top rate is 1.95 percentage points higher.
Property tax
- Missouri: 0.79% effective rate vs Ohio: 1.22% of home value per year.
- Ohio's rate is 0.43 percentage points higher.
Sales tax
- Missouri: 8.44% combined state and average local rate vs Ohio: 7.29%.
- Missouri's combined rate is 1.15 percentage points higher.
Official Websites
Missouri official website · Ohio official website
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More Size Comparisons
All Missouri size comparisons · All Ohio 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.