The map above shows Maine and Montana side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maine vs Montana Geography
Land area: Maine has a land area of 30,845 square miles (79,888 km²), while Montana has 145,550 square miles (376,973 km²). Montana's land area is 4.7 times (372%) larger than Maine's.
Total area: Maine: 35,380 square miles (91,634 km²) vs Montana: 147,043 square miles (380,840 km²), including inland and coastal water. Montana's total area is 4.2 times (316%) larger than Maine's.
Length: Maine is 311 miles (501 km) long from north to south; Montana is 319 miles (514 km). Maine and Montana have about the same north-south length.
Width: Maine spans 203 miles (327 km) east to west; Montana spans 607 miles (976 km). Montana's east-west width is 3.0 times (199%) wider than Maine's.
Highest point: Maine's highest point is Mount Katahdin at 5,253 feet (1,601 m); Montana's is Granite Peak at 12,767 feet (3,891 m). Granite Peak is 7,514 feet higher than Mount Katahdin.
Lowest point: Maine's lowest point is Atlantic Ocean at 0 feet; Montana's is Kootenai River at 1,805 feet. Maine's lowest point is 1,805 feet lower.
Maine vs Montana Population and History
Population: Maine has a population of 1,405,012 (2024), while Montana has 1,137,233 (2024). Maine's population is 1.2 times (24%) larger than Montana's.
Population density: Maine: 45.6 people per square mile vs Montana: 7.8. Maine's population density is 5.8 times (485%) higher than Montana's.
Biggest city: Maine's biggest city is Portland with 69,568 people; Montana's is Billings with 121,483. Billings' population is 1.7 times (75%) larger than Portland's.
Largest metro area: Maine's largest metropolitan area is Portland-South Portland, ME metro area (571,534 people) vs Montana's Billings, MT metro area (192,531). Portland-South Portland, ME metro area's population is 3.0 times (197%) larger than Billings, MT metro area's.
History: Maine: Admitted to the Union on March 15, 1820, as the 23rd state. Montana: Admitted to the Union on November 8, 1889, as the 41st state. In its current form, Maine is the older of the two by 69 years.
Maine vs Montana Economy
GDP: Maine's GDP is $99.2 billion (2024) vs Montana's $78.4 billion. Maine's economic output is 1.3 times (27%) larger than Montana's.
GDP per capita: Maine: $70,586 per person vs Montana: $68,975. Maine and Montana have about the same GDP per capita.
Average income: Maine: $68,932 vs Montana: $69,240 average income per person (per capita personal income). Maine and Montana have about the same average income.
Maine vs Montana Counties
Number of counties: Maine has 16 counties, while Montana has 56. Montana's county count is 3.5 times (250%) higher than Maine's.
Biggest county by area: Maine's largest county is Aroostook County at 6,671 square miles; Montana's is Beaverhead County at 5,543 square miles. Aroostook County's land area is 1.2 times (20%) larger than Beaverhead County's.
Smallest county by area: Maine: Sagadahoc County (254 sq mi) vs Montana: Silver Bow County (718 sq mi). Silver Bow County's land area is 2.8 times (183%) larger than Sagadahoc County's.
Most populous county: Maine: Cumberland County (313,809 people) vs Montana: Yellowstone County (171,583 people). Cumberland County's population is 1.8 times (83%) larger than Yellowstone County's.
Least populous county: Maine: Piscataquis County (17,432 people) vs Montana: Petroleum County (525 people). Piscataquis County's population is 33.2 times larger than Petroleum County's.
Richest county: Maine: Cumberland County ($90,142 per capita income) vs Montana: Gallatin County ($94,573). Gallatin County's income is 1.0 times (5%) richer than Cumberland County's.
Poorest county: Maine: Franklin County ($52,725 per capita income) vs Montana: Blaine County ($37,554). Franklin County's income is 1.4 times (40%) richer than Blaine County's.
Maine vs Montana Taxes
State income tax: Maine has a top income tax rate of 7.15%, while Montana has a top income tax rate of 5.65%. Maine's top rate is 1.5 percentage points higher.
Property tax: Maine: 0.91% effective rate vs Montana: 0.69% of home value per year. Maine's rate is 0.22 percentage points higher.
Sales tax: Maine: 5.5% combined state and average local rate vs Montana: 0%. Maine's combined rate is 5.5 percentage points higher.
Official Websites
Maine official website · Montana official website
More Size Comparisons
All Maine size comparisons · All Montana 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.