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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 Value
County
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Value (Percent)
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People (Age Under 18)
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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
Deer Lodge County 13.6 1,271 3,112
Powell County 15.1 1,053 3,072
Madison County 15.6 1,326 3,052
Golden Valley County 16.7 137 2,976
Treasure County 16.9 117 2,958
Beaverhead County 17.2 1,611 2,931
Park County 17.2 2,936 2,926
Carter County 17.5 236 2,891
Meagher County 17.5 338 2,890
Petroleum County 17.5 76 2,884
Sanders County 17.6 2,164 2,875
Carbon County 17.8 1,867 2,853
Granite County 17.9 596 2,840
Lincoln County 18.4 3,613 2,777
Missoula County 18.7 21,982 2,711
McCone County 18.9 341 2,675
Musselshell County 19.1 917 2,642
Ravalli County 19.1 8,362 2,640
Broadwater County 19.1 1,270 2,632
Mineral County 19.4 869 2,564
Gallatin County 19.8 23,108 2,464
Fergus County 20.1 2,301 2,379
Toole County 20.1 1,010 2,360
Custer County 20.2 2,423 2,327
Powder River County 20.4 359 2,284
Sweet Grass County 20.5 755 2,266
Jefferson County 20.5 2,470 2,251
Silver Bow County 20.6 7,228 2,203
Sheridan County 20.7 728 2,189
Wheatland County 20.8 434 2,139
Dawson County 21.0 1,889 2,089
Daniels County 21.2 368 2,034
Stillwater County 21.6 1,922 1,898
Lewis and Clark County 21.6 15,169 1,892
Garfield County 21.7 211 1,816
Flathead County 21.9 22,673 1,713
Cascade County 22.8 19,168 1,352
Chouteau County 23.3 1,372 1,138
Lake County 23.4 7,253 1,093
Judith Basin County 23.5 470 1,049
Valley County 23.5 1,772 1,043
Yellowstone County 23.6 38,563 999
Prairie County 23.6 290 971
Pondera County 23.7 1,413 968
Phillips County 23.7 1,004 945
Teton County 24.8 1,528 581
Fallon County 24.8 761 579
Richland County 25.5 2,903 420
Liberty County 26.2 530 314
Wibaux County 26.2 267 306
Rosebud County 28.0 2,368 157
Hill County 28.1 4,578 151
Glacier County 29.8 4,122 96
Blaine County 30.3 2,134 89
Big Horn County 34.0 4,482 26
Roosevelt County 34.1 3,707 24
Notes:
Created by statecancerprofiles.cancer.gov on 05/24/2024 9:03 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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