The map above shows Ohio and Tennessee side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Ohio vs Tennessee Geography
Land area: Ohio has a land area of 40,859 square miles (105,824 km²), while Tennessee has 41,224 square miles (106,770 km²). Ohio and Tennessee have about the same land area.
Total area: Ohio: 44,826 square miles (116,098 km²) vs Tennessee: 42,130 square miles (109,116 km²), including inland and coastal water. Ohio's total area is 1.1 times (6%) larger than Tennessee's.
Length: Ohio is 291 miles (468 km) long from north to south; Tennessee is 191 miles (308 km). Ohio's north-south length is 1.5 times (52%) longer than Tennessee's.
Width: Ohio spans 317 miles (510 km) east to west; Tennessee spans 497 miles (800 km). Tennessee's east-west width is 1.6 times (57%) wider than Ohio's.
Highest point: Ohio's highest point is Campbell Hill at 1,547 feet (472 m); Tennessee's is Clingmans Dome at 6,624 feet (2,019 m). Clingmans Dome is 5,077 feet higher than Campbell Hill.
Lowest point: Ohio's lowest point is Ohio River at 455 feet; Tennessee's is Mississippi River at 178 feet. Tennessee's lowest point is 277 feet lower.
Ohio vs Tennessee Population and History
Population: Ohio has a population of 11,883,304 (2024), while Tennessee has 7,227,750 (2024). Ohio's population is 1.6 times (64%) larger than Tennessee's.
Population density: Ohio: 290.8 people per square mile vs Tennessee: 175.3. Ohio's population density is 1.7 times (66%) higher than Tennessee's.
Biggest city: Ohio's biggest city is Columbus with 933,263 people; Tennessee's is Nashville with 704,963. Columbus' population is 1.3 times (32%) larger than Nashville's.
Largest metro area: Ohio's largest metropolitan area is Cincinnati, OH-KY-IN metro area (2,302,815 people) vs Tennessee's Nashville-Davidson--Murfreesboro--Franklin, TN metro area (2,150,553). Cincinnati, OH-KY-IN metro area's population is 1.1 times (7%) larger than Nashville-Davidson--Murfreesboro--Franklin, TN metro area's.
History: Ohio: Admitted to the Union on March 1, 1803, as the 17th state. Tennessee: Admitted to the Union on June 1, 1796, as the 16th state. In its current form, Tennessee is the older of the two by 7 years.
Ohio vs Tennessee Economy
GDP: Ohio's GDP is $923.1 billion (2024) vs Tennessee's $561.2 billion. Ohio's economic output is 1.6 times (64%) larger than Tennessee's.
GDP per capita: Ohio: $77,684 per person vs Tennessee: $77,645. Ohio and Tennessee have about the same GDP per capita.
Average income: Ohio: $64,464 vs Tennessee: $66,504 average income per person (per capita personal income). Ohio and Tennessee have about the same average income.
Ohio vs Tennessee Counties
Number of counties: Ohio has 88 counties, while Tennessee has 95. Tennessee's county count is 1.1 times (8%) higher than Ohio's.
Biggest county by area: Ohio's largest county is Ashtabula County at 702 square miles; Tennessee's is Shelby County at 753 square miles. Shelby County's land area is 1.1 times (7%) larger than Ashtabula County's.
Smallest county by area: Ohio: Lake County (229 sq mi) vs Tennessee: Trousdale County (114 sq mi). Lake County's land area is 2.0 times (101%) larger than Trousdale County's.
Most populous county: Ohio: Franklin County (1,356,303 people) vs Tennessee: Shelby County (910,530 people). Franklin County's population is 1.5 times (49%) larger than Shelby County's.
Least populous county: Ohio: Vinton County (12,545 people) vs Tennessee: Pickett County (5,108 people). Vinton County's population is 2.5 times (146%) larger than Pickett County's.
Richest county: Ohio: Delaware County ($96,573 per capita income) vs Tennessee: Williamson County ($139,704). Williamson County's income is 1.4 times (45%) richer than Delaware County's.
Poorest county: Ohio: Noble County ($34,940 per capita income) vs Tennessee: Lake County ($31,572). Noble County's income is 1.1 times (11%) richer than Lake County's.
Ohio vs Tennessee Taxes
State income tax: Ohio has a top income tax rate of 2.75%, while Tennessee has no state income tax. Ohio's top rate is 2.75 percentage points higher.
Property tax: Ohio: 1.22% effective rate vs Tennessee: 0.45% of home value per year. Ohio's rate is 0.77 percentage points higher.
Sales tax: Ohio: 7.29% combined state and average local rate vs Tennessee: 9.61%. Tennessee's combined rate is 2.32 percentage points higher.
Official Websites
Ohio official website · Tennessee official website
More Size Comparisons
All Ohio size comparisons · All Tennessee 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.