The map above shows Montana and Utah side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Montana vs Utah Geography
Land area: Montana has a land area of 145,550 square miles (376,973 km²), while Utah has 82,596 square miles (213,922 km²). Montana's land area is 1.8 times (76%) larger than Utah's.
Total area: Montana: 147,043 square miles (380,840 km²) vs Utah: 84,898 square miles (219,885 km²), including inland and coastal water. Montana's total area is 1.7 times (73%) larger than Utah's.
Length: Montana is 319 miles (514 km) long from north to south; Utah is 436 miles (702 km). Utah's north-south length is 1.4 times (37%) longer than Montana's.
Width: Montana spans 607 miles (976 km) east to west; Utah spans 268 miles (431 km). Montana's east-west width is 2.3 times (126%) wider than Utah's.
Highest point: Montana's highest point is Granite Peak at 12,767 feet (3,891 m); Utah's is Kings Peak at 13,512 feet (4,118 m). Kings Peak is 745 feet higher than Granite Peak.
Lowest point: Montana's lowest point is Kootenai River at 1,805 feet; Utah's is Beaver Dam Wash at 2,180 feet. Montana's lowest point is 375 feet lower.
Montana vs Utah Population and History
Population: Montana has a population of 1,137,233 (2024), while Utah has 3,503,613 (2024). Utah's population is 3.1 times (208%) larger than Montana's.
Population density: Montana: 7.8 people per square mile vs Utah: 42.4. Utah's population density is 5.4 times (444%) higher than Montana's.
Biggest city: Montana's biggest city is Billings with 121,483 people; Utah's is Salt Lake City with 217,783. Salt Lake City's population is 1.8 times (79%) larger than Billings'.
Largest metro area: Montana's largest metropolitan area is Billings, MT metro area (192,531 people) vs Utah's Salt Lake City-Murray, UT metro area (1,300,762). Salt Lake City-Murray, UT metro area's population is 6.8 times (576%) larger than Billings, MT metro area's.
History: Montana: Admitted to the Union on November 8, 1889, as the 41st state. Utah: Admitted to the Union on January 4, 1896, as the 45th state. In its current form, Montana is the older of the two by 7 years.
Montana vs Utah Economy
GDP: Montana's GDP is $78.4 billion (2024) vs Utah's $299.5 billion. Utah's economic output is 3.8 times (282%) larger than Montana's.
GDP per capita: Montana: $68,975 per person vs Utah: $85,475. Utah's GDP per capita is 1.2 times (24%) higher than Montana's.
Average income: Montana: $69,240 vs Utah: $67,333 average income per person (per capita personal income). Montana and Utah have about the same average income.
Montana vs Utah Counties
Number of counties: Montana has 56 counties, while Utah has 29. Montana's county count is 1.9 times (93%) higher than Utah's.
Biggest county by area: Montana's largest county is Beaverhead County at 5,543 square miles; Utah's is San Juan County at 7,824 square miles. San Juan County's land area is 1.4 times (41%) larger than Beaverhead County's.
Smallest county by area: Montana: Silver Bow County (718 sq mi) vs Utah: Davis County (325 sq mi). Silver Bow County's land area is 2.2 times (121%) larger than Davis County's.
Most populous county: Montana: Yellowstone County (171,583 people) vs Utah: Salt Lake County (1,216,274 people). Salt Lake County's population is 7.1 times (609%) larger than Yellowstone County's.
Least populous county: Montana: Petroleum County (525 people) vs Utah: Daggett County (956 people). Daggett County's population is 1.8 times (82%) larger than Petroleum County's.
Richest county: Montana: Gallatin County ($94,573 per capita income) vs Utah: Summit County ($280,510). Summit County's income is 3.0 times (197%) richer than Gallatin County's.
Poorest county: Montana: Blaine County ($37,554 per capita income) vs Utah: Beaver County ($39,179). Blaine County and Beaver County have about the same income.
Montana vs Utah Taxes
State income tax: Montana has a top income tax rate of 5.65%, while Utah has a top income tax rate of 4.5%. Montana's top rate is 1.15 percentage points higher.
Property tax: Montana: 0.69% effective rate vs Utah: 0.49% of home value per year. Montana's rate is 0.2 percentage points higher.
Sales tax: Montana: 0% combined state and average local rate vs Utah: 7.42%. Utah's combined rate is 7.42 percentage points higher.
Official Websites
Montana official website · Utah official website
More Size Comparisons
All Montana size comparisons · All Utah 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.