The map above shows Oklahoma and Tennessee side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oklahoma vs Tennessee Geography
Land area: Oklahoma has a land area of 68,597 square miles (177,665 km²), while Tennessee has 41,224 square miles (106,770 km²). Oklahoma's land area is 1.7 times (66%) larger than Tennessee's.
Total area: Oklahoma: 69,899 square miles (181,038 km²) vs Tennessee: 42,130 square miles (109,116 km²), including inland and coastal water. Oklahoma's total area is 1.7 times (66%) larger than Tennessee's.
Length: Oklahoma is 533 miles (857 km) long from north to south; Tennessee is 191 miles (308 km). Oklahoma's north-south length is 2.8 times (179%) longer than Tennessee's.
Width: Oklahoma spans 490 miles (789 km) east to west; Tennessee spans 497 miles (800 km). Oklahoma and Tennessee have about the same east-west width.
Highest point: Oklahoma's highest point is Black Mesa at 4,980 feet (1,518 m); Tennessee's is Clingmans Dome at 6,624 feet (2,019 m). Clingmans Dome is 1,644 feet higher than Black Mesa.
Lowest point: Oklahoma's lowest point is Little River at 289 feet; Tennessee's is Mississippi River at 178 feet. Tennessee's lowest point is 111 feet lower.
Oklahoma vs Tennessee Population and History
Population: Oklahoma has a population of 4,095,393 (2024), while Tennessee has 7,227,750 (2024). Tennessee's population is 1.8 times (76%) larger than Oklahoma's.
Population density: Oklahoma: 59.7 people per square mile vs Tennessee: 175.3. Tennessee's population density is 2.9 times (194%) higher than Oklahoma's.
Biggest city: Oklahoma's biggest city is Oklahoma City with 712,919 people; Tennessee's is Nashville with 704,963. Oklahoma City and Nashville have about the same population.
Largest metro area: Oklahoma's largest metropolitan area is Oklahoma City, OK metro area (1,497,821 people) vs Tennessee's Nashville-Davidson--Murfreesboro--Franklin, TN metro area (2,150,553). Nashville-Davidson--Murfreesboro--Franklin, TN metro area's population is 1.4 times (44%) larger than Oklahoma City, OK metro area's.
History: Oklahoma: Admitted to the Union on November 16, 1907, as the 46th 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 111 years.
Oklahoma vs Tennessee Economy
GDP: Oklahoma's GDP is $263.7 billion (2024) vs Tennessee's $561.2 billion. Tennessee's economic output is 2.1 times (113%) larger than Oklahoma's.
GDP per capita: Oklahoma: $64,388 per person vs Tennessee: $77,645. Tennessee's GDP per capita is 1.2 times (21%) higher than Oklahoma's.
Average income: Oklahoma: $63,708 vs Tennessee: $66,504 average income per person (per capita personal income). Oklahoma and Tennessee have about the same average income.
Oklahoma vs Tennessee Counties
Number of counties: Oklahoma has 77 counties, while Tennessee has 95. Tennessee's county count is 1.2 times (23%) higher than Oklahoma's.
Biggest county by area: Oklahoma's largest county is Osage County at 2,247 square miles; Tennessee's is Shelby County at 753 square miles. Osage County's land area is 3.0 times (198%) larger than Shelby County's.
Smallest county by area: Oklahoma: Marshall County (372 sq mi) vs Tennessee: Trousdale County (114 sq mi). Marshall County's land area is 3.3 times (225%) larger than Trousdale County's.
Most populous county: Oklahoma: Oklahoma County (816,490 people) vs Tennessee: Shelby County (910,530 people). Shelby County's population is 1.1 times (12%) larger than Oklahoma County's.
Least populous county: Oklahoma: Cimarron County (2,133 people) vs Tennessee: Pickett County (5,108 people). Pickett County's population is 2.4 times (139%) larger than Cimarron County's.
Richest county: Oklahoma: Washington County ($126,749 per capita income) vs Tennessee: Williamson County ($139,704). Williamson County's income is 1.1 times (10%) richer than Washington County's.
Poorest county: Oklahoma: Atoka County ($38,709 per capita income) vs Tennessee: Lake County ($31,572). Atoka County's income is 1.2 times (23%) richer than Lake County's.
Oklahoma vs Tennessee Taxes
State income tax: Oklahoma has a top income tax rate of 4.5%, while Tennessee has no state income tax. Oklahoma's top rate is 4.5 percentage points higher.
Property tax: Oklahoma: 0.75% effective rate vs Tennessee: 0.45% of home value per year. Oklahoma's rate is 0.3 percentage points higher.
Sales tax: Oklahoma: 9.06% combined state and average local rate vs Tennessee: 9.61%. Tennessee's combined rate is 0.55 percentage points higher.
Official Websites
Oklahoma official website · Tennessee official website
More Size Comparisons
All Oklahoma 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.