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Demographics Table

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Demographic Data Report for Montana by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2017-2021 American Community Survey 5-Year Data
Sorted by Count
County
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Value (Percent)
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People (Age Under 18)
 sort by sample size descending
Rank within US
(of 3143 counties)
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Montana 21.6 232,815 37 of 52
United States 22.5 74,234,075 N/A
Petroleum County 17.5 76 2,884
Treasure County 16.9 117 2,958
Golden Valley County 16.7 137 2,976
Garfield County 21.7 211 1,816
Carter County 17.5 236 2,891
Wibaux County 26.2 267 306
Prairie County 23.6 290 971
Meagher County 17.5 338 2,890
McCone County 18.9 341 2,675
Powder River County 20.4 359 2,284
Daniels County 21.2 368 2,034
Wheatland County 20.8 434 2,139
Judith Basin County 23.5 470 1,049
Liberty County 26.2 530 314
Granite County 17.9 596 2,840
Sheridan County 20.7 728 2,189
Sweet Grass County 20.5 755 2,266
Fallon County 24.8 761 579
Mineral County 19.4 869 2,564
Musselshell County 19.1 917 2,642
Phillips County 23.7 1,004 945
Toole County 20.1 1,010 2,360
Powell County 15.1 1,053 3,072
Broadwater County 19.1 1,270 2,632
Deer Lodge County 13.6 1,271 3,112
Madison County 15.6 1,326 3,052
Chouteau County 23.3 1,372 1,138
Pondera County 23.7 1,413 968
Teton County 24.8 1,528 581
Beaverhead County 17.2 1,611 2,931
Valley County 23.5 1,772 1,043
Carbon County 17.8 1,867 2,853
Dawson County 21.0 1,889 2,089
Stillwater County 21.6 1,922 1,898
Blaine County 30.3 2,134 89
Sanders County 17.6 2,164 2,875
Fergus County 20.1 2,301 2,379
Rosebud County 28.0 2,368 157
Custer County 20.2 2,423 2,327
Jefferson County 20.5 2,470 2,251
Richland County 25.5 2,903 420
Park County 17.2 2,936 2,926
Lincoln County 18.4 3,613 2,777
Roosevelt County 34.1 3,707 24
Glacier County 29.8 4,122 96
Big Horn County 34.0 4,482 26
Hill County 28.1 4,578 151
Silver Bow County 20.6 7,228 2,203
Lake County 23.4 7,253 1,093
Ravalli County 19.1 8,362 2,640
Lewis and Clark County 21.6 15,169 1,892
Cascade County 22.8 19,168 1,352
Missoula County 18.7 21,982 2,711
Flathead County 21.9 22,673 1,713
Gallatin County 19.8 23,108 2,464
Yellowstone County 23.6 38,563 999
Notes:
Created by statecancerprofiles.cancer.gov on 03/05/2024 2:45 am.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.
Data for United States does not include Puerto Rico.

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