The map above shows Montana and Tennessee side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Montana vs Tennessee Geography
Land area: Montana has a land area of 145,550 square miles (376,973 km²), while Tennessee has 41,224 square miles (106,770 km²). Montana's land area is 3.5 times (253%) larger than Tennessee's.
Total area: Montana: 147,043 square miles (380,840 km²) vs Tennessee: 42,130 square miles (109,116 km²), including inland and coastal water. Montana's total area is 3.5 times (249%) larger than Tennessee's.
Length: Montana is 319 miles (514 km) long from north to south; Tennessee is 191 miles (308 km). Montana's north-south length is 1.7 times (67%) longer than Tennessee's.
Width: Montana spans 607 miles (976 km) east to west; Tennessee spans 497 miles (800 km). Montana's east-west width is 1.2 times (22%) wider than Tennessee's.
Highest point: Montana's highest point is Granite Peak at 12,767 feet (3,891 m); Tennessee's is Clingmans Dome at 6,624 feet (2,019 m). Granite Peak is 6,143 feet higher than Clingmans Dome.
Lowest point: Montana's lowest point is Kootenai River at 1,805 feet; Tennessee's is Mississippi River at 178 feet. Tennessee's lowest point is 1,627 feet lower.
Montana vs Tennessee Population and History
Population: Montana has a population of 1,137,233 (2024), while Tennessee has 7,227,750 (2024). Tennessee's population is 6.4 times (536%) larger than Montana's.
Population density: Montana: 7.8 people per square mile vs Tennessee: 175.3. Tennessee's population density is 22.5 times higher than Montana's.
Biggest city: Montana's biggest city is Billings with 121,483 people; Tennessee's is Nashville with 704,963. Nashville's population is 5.8 times (480%) larger than Billings'.
Largest metro area: Montana's largest metropolitan area is Billings, MT metro area (192,531 people) vs Tennessee's Nashville-Davidson--Murfreesboro--Franklin, TN metro area (2,150,553). Nashville-Davidson--Murfreesboro--Franklin, TN metro area's population is 11.2 times larger than Billings, MT metro area's.
History: Montana: Admitted to the Union on November 8, 1889, as the 41st 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 93 years.
Montana vs Tennessee Economy
GDP: Montana's GDP is $78.4 billion (2024) vs Tennessee's $561.2 billion. Tennessee's economic output is 7.2 times (616%) larger than Montana's.
GDP per capita: Montana: $68,975 per person vs Tennessee: $77,645. Tennessee's GDP per capita is 1.1 times (13%) higher than Montana's.
Average income: Montana: $69,240 vs Tennessee: $66,504 average income per person (per capita personal income). Montana and Tennessee have about the same average income.
Montana vs Tennessee Counties
Number of counties: Montana has 56 counties, while Tennessee has 95. Tennessee's county count is 1.7 times (70%) higher than Montana's.
Biggest county by area: Montana's largest county is Beaverhead County at 5,543 square miles; Tennessee's is Shelby County at 753 square miles. Beaverhead County's land area is 7.4 times (636%) larger than Shelby County's.
Smallest county by area: Montana: Silver Bow County (718 sq mi) vs Tennessee: Trousdale County (114 sq mi). Silver Bow County's land area is 6.3 times (528%) larger than Trousdale County's.
Most populous county: Montana: Yellowstone County (171,583 people) vs Tennessee: Shelby County (910,530 people). Shelby County's population is 5.3 times (431%) larger than Yellowstone County's.
Least populous county: Montana: Petroleum County (525 people) vs Tennessee: Pickett County (5,108 people). Pickett County's population is 9.7 times (873%) larger than Petroleum County's.
Richest county: Montana: Gallatin County ($94,573 per capita income) vs Tennessee: Williamson County ($139,704). Williamson County's income is 1.5 times (48%) richer than Gallatin County's.
Poorest county: Montana: Blaine County ($37,554 per capita income) vs Tennessee: Lake County ($31,572). Blaine County's income is 1.2 times (19%) richer than Lake County's.
Montana vs Tennessee Taxes
State income tax: Montana has a top income tax rate of 5.65%, while Tennessee has no state income tax. Montana's top rate is 5.65 percentage points higher.
Property tax: Montana: 0.69% effective rate vs Tennessee: 0.45% of home value per year. Montana's rate is 0.24 percentage points higher.
Sales tax: Montana: 0% combined state and average local rate vs Tennessee: 9.61%. Tennessee's combined rate is 9.61 percentage points higher.
Official Websites
Montana official website · Tennessee official website
More Size Comparisons
All Montana 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.