Total Population in Montana

ACS 2024 5-Year Estimates

Total Population
1,116,875
Rank #44 of 52
16th %ile

How Montana Compares

Montana
1,116,875
National
330M
99.7% below

State Ranking

Rank State Value
#41 Hawaii 1,445,235
#42 New Hampshire 1,394,868
#43 Maine 1,387,817
#44 Montana 1,116,875
#45 Rhode Island 1,101,801
#46 Delaware 1,021,191
#47 South Dakota 907,428
View full state ranking →

Highest Population Counties in Montana

# County Population
1 Yellowstone County 168,957
2 Gallatin County 124,074
3 Missoula County 120,672
4 Flathead County 110,695
5 Cascade County 84,606
6 Lewis and Clark County 73,464
7 Ravalli County 46,727
8 Silver Bow County 35,785
9 Lake County 32,561
10 Lincoln County 21,175

Lowest Population Counties in Montana

# County Population
56 Petroleum County 447
55 Treasure County 732
54 Golden Valley County 899
53 Garfield County 1,094
52 Wibaux County 1,193
51 Prairie County 1,250
50 Carter County 1,308
49 Daniels County 1,494
48 McCone County 1,670
47 Powder River County 1,815

Total Population in Montana

Montana has a total population of 1,116,875, ranking #44 of 52 among all 52 states and territories. This is 99.7% below the national value of 330M.

Across Montana's 56 counties, total population ranges from 447 to 168,957. The county with the highest value is Yellowstone County at 168,957.

Total population count from the American Community Survey.

About this data

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.