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Demographics Table

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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
 sort alphabetically by name ascending
2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
 sort by value descending
People (Age 40-64)
 sort by sample size ascending
Rank within US
(of 3143 counties)
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Montana N/A 30.5 340,202 38 of 52
United States N/A 31.3 104,825,270 N/A
Prairie County Rural 22.4 280 3,112
Fallon County Rural 24.7 681 3,073
Roosevelt County Rural 24.7 2,600 3,073
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
Garfield County Rural 27.2 298 2,915
Blaine County Rural 27.5 1,911 2,884
Glacier County Rural 27.7 3,773 2,862
Powder River County Rural 27.7 503 2,862
Gallatin County Urban 27.9 34,663 2,843
Liberty County Rural 27.9 545 2,843
Missoula County Urban 28.5 34,439 2,749
Chouteau County Rural 28.8 1,703 2,679
Cascade County Urban 28.9 24,465 2,660
Beaverhead County Rural 29.0 2,818 2,644
Teton County Rural 29.4 1,870 2,559
Fergus County Rural 29.7 3,470 2,457
Rosebud County Rural 29.7 2,425 2,457
Golden Valley County Rural 30.0 270 2,361
Pondera County Rural 30.1 1,814 2,329
Mineral County Urban 30.3 1,505 2,260
Yellowstone County Urban 30.4 51,437 2,235
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
Richland County Rural 30.6 3,433 2,150
Valley County Rural 30.6 2,299 2,150
Dawson County Rural 31.0 2,733 1,952
Silver Bow County Rural 31.0 11,109 1,952
Judith Basin County Rural 31.4 651 1,748
Sweet Grass County Rural 31.4 1,167 1,748
Daniels County Rural 31.6 472 1,627
Sheridan County Rural 31.8 1,168 1,520
McCone County Rural 31.9 533 1,466
Flathead County Rural 32.1 35,574 1,357
Lewis and Clark County Urban 32.3 23,699 1,236
Sanders County Rural 32.4 4,310 1,175
Madison County Rural 32.5 2,998 1,114
Stillwater County Urban 32.8 3,009 961
Ravalli County Rural 32.9 15,367 909
Carter County Rural 33.0 432 851
Musselshell County Rural 33.0 1,698 851
Carbon County Urban 33.4 3,716 647
Lincoln County Rural 33.5 7,102 603
Custer County Rural 33.9 4,056 452
Park County Rural 34.0 6,018 425
Jefferson County Urban 34.2 4,370 362
Phillips County Rural 34.6 1,461 262
Broadwater County Urban 35.1 2,688 189
Deer Lodge County Rural 35.5 3,408 140
Meagher County Rural 35.6 714 125
Granite County Rural 35.8 1,241 100
Powell County Rural 37.3 2,632 37
Treasure County Rural 37.3 273 37
Petroleum County Rural 40.5 181 10

Notes:
Created by statecancerprofiles.cancer.gov on 03/21/2026 4:37 am.

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.

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