The map above shows Mississippi and Ohio side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Mississippi vs Ohio Geography
Land area: Mississippi has a land area of 46,925 square miles (121,534 km²), while Ohio has 40,859 square miles (105,824 km²). Mississippi's land area is 1.1 times (15%) larger than Ohio's.
Total area: Mississippi: 48,436 square miles (125,448 km²) vs Ohio: 44,826 square miles (116,098 km²), including inland and coastal water. Mississippi's total area is 1.1 times (8%) larger than Ohio's.
Length: Mississippi is 337 miles (542 km) long from north to south; Ohio is 291 miles (468 km). Mississippi's north-south length is 1.2 times (16%) longer than Ohio's.
Width: Mississippi spans 340 miles (547 km) east to west; Ohio spans 317 miles (510 km). Mississippi's east-west width is 1.1 times (7%) wider than Ohio's.
Highest point: Mississippi's highest point is Woodall Mountain at 805 feet (245 m); Ohio's is Campbell Hill at 1,547 feet (472 m). Campbell Hill is 742 feet higher than Woodall Mountain.
Lowest point: Mississippi's lowest point is Gulf of Mexico at 0 feet; Ohio's is Ohio River at 455 feet. Mississippi's lowest point is 455 feet lower.
Mississippi vs Ohio Population and History
Population: Mississippi has a population of 2,943,045 (2024), while Ohio has 11,883,304 (2024). Ohio's population is 4.0 times (304%) larger than Mississippi's.
Population density: Mississippi: 62.7 people per square mile vs Ohio: 290.8. Ohio's population density is 4.6 times (364%) higher than Mississippi's.
Biggest city: Mississippi's biggest city is Jackson with 141,449 people; Ohio's is Columbus with 933,263. Columbus' population is 6.6 times (560%) larger than Jackson's.
Largest metro area: Mississippi's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 people) vs Ohio's Cincinnati, OH-KY-IN metro area (2,302,815). Cincinnati, OH-KY-IN metro area's population is 1.7 times (72%) larger than Memphis, TN-MS-AR metro area's.
History: Mississippi: Admitted to the Union on December 10, 1817, as the 20th 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 14 years.
Mississippi vs Ohio Economy
GDP: Mississippi's GDP is $158.2 billion (2024) vs Ohio's $923.1 billion. Ohio's economic output is 5.8 times (484%) larger than Mississippi's.
GDP per capita: Mississippi: $53,751 per person vs Ohio: $77,684. Ohio's GDP per capita is 1.4 times (45%) higher than Mississippi's.
Average income: Mississippi: $52,074 vs Ohio: $64,464 average income per person (per capita personal income). Ohio's average income is 1.2 times (24%) higher than Mississippi's.
Mississippi vs Ohio Counties
Number of counties: Mississippi has 82 counties, while Ohio has 88. Ohio's county count is 1.1 times (7%) higher than Mississippi's.
Biggest county by area: Mississippi's largest county is Yazoo County at 922 square miles; Ohio's is Ashtabula County at 702 square miles. Yazoo County's land area is 1.3 times (31%) larger than Ashtabula County's.
Smallest county by area: Mississippi: Alcorn County (400 sq mi) vs Ohio: Lake County (229 sq mi). Alcorn County's land area is 1.7 times (74%) larger than Lake County's.
Most populous county: Mississippi: Harrison County (213,730 people) vs Ohio: Franklin County (1,356,303 people). Franklin County's population is 6.3 times (535%) larger than Harrison County's.
Least populous county: Mississippi: Issaquena County (1,295 people) vs Ohio: Vinton County (12,545 people). Vinton County's population is 9.7 times (869%) larger than Issaquena County's.
Richest county: Mississippi: Madison County ($90,668 per capita income) vs Ohio: Delaware County ($96,573). Delaware County's income is 1.1 times (7%) richer than Madison County's.
Poorest county: Mississippi: Issaquena County ($27,264 per capita income) vs Ohio: Noble County ($34,940). Noble County's income is 1.3 times (28%) richer than Issaquena County's.
Mississippi vs Ohio Taxes
State income tax: Mississippi has a top income tax rate of 4%, while Ohio has a top income tax rate of 2.75%. Mississippi's top rate is 1.25 percentage points higher.
Property tax: Mississippi: 0.65% effective rate vs Ohio: 1.22% of home value per year. Ohio's rate is 0.57 percentage points higher.
Sales tax: Mississippi: 7.06% combined state and average local rate vs Ohio: 7.29%. Ohio's combined rate is 0.23 percentage points higher.
Official Websites
Mississippi official website · Ohio official website
More Size Comparisons
All Mississippi 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.