Demographics Table
Demographic Data Report for Montana by County
Population: Age 40-64
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age 40-64)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| United States | N/A | 31.3 | 104,825,270 | N/A |
| Montana | N/A | 30.5 | 340,202 | 38 of 52 |
| Petroleum County | Rural | 40.5 | 181 | 10 |
| Powell County | Rural | 37.3 | 2,632 | 37 |
| Treasure County | Rural | 37.3 | 273 | 37 |
| Granite County | Rural | 35.8 | 1,241 | 100 |
| Meagher County | Rural | 35.6 | 714 | 125 |
| Deer Lodge County | Rural | 35.5 | 3,408 | 140 |
| Broadwater County | Urban | 35.1 | 2,688 | 189 |
| Phillips County | Rural | 34.6 | 1,461 | 262 |
| Jefferson County | Urban | 34.2 | 4,370 | 362 |
| Park County | Rural | 34.0 | 6,018 | 425 |
| Custer County | Rural | 33.9 | 4,056 | 452 |
| Lincoln County | Rural | 33.5 | 7,102 | 603 |
| Carbon County | Urban | 33.4 | 3,716 | 647 |
| Carter County | Rural | 33.0 | 432 | 851 |
| Musselshell County | Rural | 33.0 | 1,698 | 851 |
| Ravalli County | Rural | 32.9 | 15,367 | 909 |
| Stillwater County | Urban | 32.8 | 3,009 | 961 |
| Madison County | Rural | 32.5 | 2,998 | 1,114 |
| Sanders County | Rural | 32.4 | 4,310 | 1,175 |
| Lewis and Clark County | Urban | 32.3 | 23,699 | 1,236 |
| Flathead County | Rural | 32.1 | 35,574 | 1,357 |
| McCone County | Rural | 31.9 | 533 | 1,466 |
| Sheridan County | Rural | 31.8 | 1,168 | 1,520 |
| Daniels County | Rural | 31.6 | 472 | 1,627 |
| Judith Basin County | Rural | 31.4 | 651 | 1,748 |
| Sweet Grass County | Rural | 31.4 | 1,167 | 1,748 |
| Dawson County | Rural | 31.0 | 2,733 | 1,952 |
| Silver Bow County | Rural | 31.0 | 11,109 | 1,952 |
| Richland County | Rural | 30.6 | 3,433 | 2,150 |
| Valley County | Rural | 30.6 | 2,299 | 2,150 |
| Lake County | Rural | 30.5 | 9,938 | 2,198 |
| Toole County | Rural | 30.5 | 1,545 | 2,198 |
| Wibaux County | Rural | 30.5 | 364 | 2,198 |
| Yellowstone County | Urban | 30.4 | 51,437 | 2,235 |
| Mineral County | Urban | 30.3 | 1,505 | 2,260 |
| Pondera County | Rural | 30.1 | 1,814 | 2,329 |
| Golden Valley County | Rural | 30.0 | 270 | 2,361 |
| Fergus County | Rural | 29.7 | 3,470 | 2,457 |
| Rosebud County | Rural | 29.7 | 2,425 | 2,457 |
| Teton County | Rural | 29.4 | 1,870 | 2,559 |
| Beaverhead County | Rural | 29.0 | 2,818 | 2,644 |
| Cascade County | Urban | 28.9 | 24,465 | 2,660 |
| Chouteau County | Rural | 28.8 | 1,703 | 2,679 |
| Missoula County | Urban | 28.5 | 34,439 | 2,749 |
| Gallatin County | Urban | 27.9 | 34,663 | 2,843 |
| Liberty County | Rural | 27.9 | 545 | 2,843 |
| Glacier County | Rural | 27.7 | 3,773 | 2,862 |
| Powder River County | Rural | 27.7 | 503 | 2,862 |
| Blaine County | Rural | 27.5 | 1,911 | 2,884 |
| Garfield County | Rural | 27.2 | 298 | 2,915 |
| Big Horn County | Rural | 26.9 | 3,468 | 2,949 |
| Hill County | Rural | 26.9 | 4,352 | 2,949 |
| Wheatland County | Rural | 26.9 | 553 | 2,949 |
| Fallon County | Rural | 24.7 | 681 | 3,073 |
| Roosevelt County | Rural | 24.7 | 2,600 | 3,073 |
| Prairie County | Rural | 22.4 | 280 | 3,112 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/27/2026 2:12 pm.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 40-64, see the dictionary.
Data for United States does not include Puerto Rico.