Age and Sex in Custer County, Montana (County)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the counties in Montana.
Scope: population of Montana, Custer County, and other counties in Montana
Custer County
Montana
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-43192.663%2.66%3673.063%3.06%3983.322%3.32%4163.472%3.47%3873.230%3.23%3302.755%2.75%5294.416%4.42%3482.905%2.90%8717.270%7.27%8997.504%7.50%6795.668%5.67%5744.791%4.79%6875.735%5.73%7246.043%6.04%7896.586%6.59%4473.731%3.73%1201.002%1.00%1601.336%1.34%3212.679%2.68%4333.614%3.61%5054.215%4.22%8757.304%7.30%8026.694%6.69%

Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of Montana and Custer County
Female Male
Montana
Custer County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.231636%-0.050779%-0.219958%-0.023869%-0.282415%0.28%0.231636%0.219958%0.231636%0.23%2,21718.506%18.5%-0.649750%-0.002671%-0.660256%-0.003944%-0.652421%0.65%0.649750%0.660256%0.649750%0.65%3,90032.554%32.6%-0.594509%-0.038490%-0.609689%-0.632999%0.63%0.594509%0.609689%0.029303%0.594509%0.59%2,64722.095%22.1%-0.523790%-0.676770%-0.523790%0.52%0.523790%0.206594%0.676770%0.078562%0.730384%0.73%6015.017%5.02%-0.553237%-0.593995%-0.553237%0.55%0.553237%0.106196%0.593995%0.033549%0.659432%0.66%2,61521.828%21.8%

Detailed Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of Montana and Custer County
Female Male
Montana
Custer County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.046953%-0.072517%-0.046866%-0.035531%-0.119470%0.12%0.046953%0.046866%0.046953%0.05%3192.663%2.66%-0.237062%-0.138564%-0.186928%-0.031738%-0.375626%0.38%0.237062%0.186928%0.237062%0.24%3673.063%3.06%-0.303840%-0.267483%-0.036936%-0.303840%0.30%0.303840%0.056761%0.267483%0.360601%0.36%3983.322%3.32%-0.333890%-0.026711%-0.400121%-0.360601%0.36%0.333890%0.400121%0.006176%0.333890%0.33%4163.472%3.47%-0.470228%-0.136338%-0.526680%-0.606566%0.61%0.470228%0.526680%0.001759%0.470228%0.47%3873.230%3.23%-0.617696%-0.631675%-0.617696%0.62%0.617696%0.141903%0.631675%0.008208%0.759599%0.76%3302.755%2.75%-0.731775%-0.676770%-0.731775%0.73%0.731775%0.008347%0.676770%0.015537%0.740122%0.74%5294.416%4.42%-0.680301%-0.724796%-0.041724%-0.680301%0.68%0.680301%0.091820%0.724796%0.772120%0.77%3482.905%2.90%-0.714524%-0.025042%-0.745522%-0.031132%-0.739566%0.74%0.714524%0.745522%0.714524%0.71%8717.270%7.27%-0.721202%-0.694163%-0.017022%-0.721202%0.72%0.721202%0.058431%0.694163%0.779633%0.78%8997.504%7.50%-0.560935%-0.011686%-0.586130%-0.572621%0.57%0.560935%0.586130%0.005277%0.560935%0.56%6795.668%5.67%-0.440735%-0.076795%-0.534361%-0.517529%0.52%0.440735%0.534361%0.030526%0.440735%0.44%5744.791%4.79%-0.559265%-0.028381%-0.582143%-0.587646%0.59%0.559265%0.582143%0.011569%0.559265%0.56%6875.735%5.73%-0.559265%-0.616128%-0.559265%0.56%0.559265%0.090150%0.616128%0.034825%0.649416%0.65%7246.043%6.04%-0.612688%-0.091820%-0.603445%-0.704508%0.70%0.612688%0.603445%0.038050%0.612688%0.61%7896.586%6.59%-0.531441%-0.180857%-0.655273%-0.712298%0.71%0.531441%0.655273%0.035079%0.531441%0.53%4473.731%3.73%-0.467446%-0.066778%-0.724259%-0.534224%0.53%0.467446%0.724259%0.045144%0.467446%0.47%1201.002%1.00%-0.492487%-0.725529%-0.492487%0.49%0.492487%0.350584%0.725529%0.116671%0.843072%0.84%1601.336%1.34%-0.534224%-0.628645%-0.534224%0.53%0.534224%0.271285%0.628645%0.076217%0.805509%0.81%3212.679%2.68%-0.484140%-0.578664%-0.484140%0.48%0.484140%0.236505%0.578664%0.055502%0.720646%0.72%4333.614%3.61%-0.373957%-0.592755%-0.373957%0.37%0.373957%0.095159%0.592755%0.021536%0.469115%0.47%5054.215%4.22%-0.697830%-0.618806%-0.697830%0.70%0.697830%0.065109%0.618806%0.033164%0.762938%0.76%8757.304%7.30%-0.629382%-0.579622%-0.629382%0.63%0.629382%0.080134%0.579622%0.032773%0.709516%0.71%8026.694%6.69%

Detailed Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of Montana and Custer County
More Females More Males
Montana
Custer County
150%100%50%0%50%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-154.444444%-75.814438%-154.444444%154.4%0.3930.3971.787%71.8%28.213%28.2%-58.450704%-16.978568%-58.450704%58.5%0.6310.6361.308%61.3%38.692%38.7%-13.808724%18.681319%18.681319%18.7%1.1871.1945.729%45.7%54.271%54.3%-8.000000%-8.000000%8.0%1.543421%0.9260.9351.923%51.9%48.077%48.1%-28.994083%-28.994083%29.0%0.333952%0.7750.7856.331%56.3%43.669%43.7%22.972973%1.299404%22.972973%23.0%1.2301.2344.848%44.8%55.152%55.2%1.140684%2.295697%1.140684%1.1%1.0111.0149.716%49.7%50.284%50.3%-5.756657%13.496933%13.496933%13.5%1.1351.1346.839%46.8%53.161%53.2%-3.504673%-4.175841%-3.504673%3.5%0.9660.9750.861%50.9%49.139%49.1%-2.452140%8.101852%8.101852%8.1%1.0811.0848.053%48.1%51.947%51.9%-2.083333%-2.083333%2.1%0.900240%0.9800.9850.515%50.5%49.485%49.5%-17.424242%-17.424242%17.4%5.712614%0.8520.8554.007%54.0%45.993%46.0%-5.074627%-5.074627%5.1%1.987377%0.9520.9551.237%51.2%48.763%48.8%16.119403%5.652298%16.119403%16.1%1.1611.1646.271%46.3%53.729%53.7%-14.986376%-14.986376%15.0%6.305460%0.8700.8753.485%53.5%46.515%46.5%-34.031414%-34.031414%34.0%5.353415%0.7460.7557.271%57.3%42.729%42.7%-14.285714%-14.285714%14.3%6.233135%0.8750.8853.333%53.3%46.667%46.7%71.186441%16.080808%71.186441%71.2%1.7121.7136.875%36.9%63.125%63.1%50.781250%12.124038%50.781250%50.8%1.5081.5139.875%39.9%60.125%60.1%48.850575%9.591354%48.850575%48.9%1.4891.4940.185%40.2%59.815%59.8%25.446429%3.633247%25.446429%25.4%1.2541.2544.356%44.4%55.644%55.6%9.330144%5.359399%9.330144%9.3%1.0931.0947.771%47.8%52.229%52.2%12.732095%5.654270%12.732095%12.7%1.1271.1347.007%47.0%52.993%53.0%

Map of Age Cohorts by County Subdivision in Custer County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
15.8%18.6%21.4%24.2%27.0%29.8%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
2.8%3.4%4.0%4.6%5.2%5.8%

20s Age Cohorts by County Subdivision#7

Percentage of population aged 22 to 29 (%):
4.5%5.8%7.1%8.3%9.5%10.8%

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
5.0%7.3%9.5%11.8%14.1%16.4%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
4.8%8.0%11.2%14.3%17.5%20.7%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
13.6%15.1%16.5%17.9%19.3%20.7%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
12.6%14.6%16.6%18.5%20.5%22.5%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
4.0%4.6%5.2%5.8%6.4%7.0%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
3.57%4.03%4.49%4.94%5.40%5.87%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Tract in Custer County

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
19.0%20.0%21.0%22.0%23.0%24.1%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
2.3%3.7%5.0%6.4%7.7%9.1%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
6.7%8.1%9.4%10.7%12.1%13.4%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
9.2%10.4%11.6%12.8%14.0%15.2%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
6.2%7.6%9.1%10.5%12.0%13.5%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
9.4%11.4%13.2%15.1%17.0%18.9%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
8.2%10.2%12.0%13.9%15.8%17.7%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
3.3%4.4%5.4%6.5%7.5%8.6%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
1.1%2.8%4.4%6.1%7.7%9.5%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in Custer County

Children Age Cohorts by Block Group#23

Percentage of population aged 0 to 17 (%):
12.2%15.0%17.7%20.4%23.1%25.9%

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
1.0%4.0%7.0%10.0%13.1%16.1%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
2.0%6.3%10.7%15.0%19.4%23.8%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
4.7%7.9%11.0%14.1%17.2%20.4%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
2.5%5.8%9.1%12.4%15.7%19.0%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
3.5%8.4%13.3%18.1%23.0%27.9%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
3.5%6.8%10.1%13.4%16.7%20.1%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
3.3%4.9%6.6%8.2%9.8%11.5%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0.0%3.5%7.0%10.5%13.9%17.5%
Road Data ©OpenStreetMap

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Age Cohorts by Place in Custer County

There are 2 places in Custer County. This section compares all 2 of those to each other, Custer County, and other entities that contain or substantially overlap with Custer County.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of Custer County, selected places in Custer County, and entities that contain Custer County
0%10%20%30%40%Count#IsmayMountainWestUnited States of AmericaUnited StatesMiles CityMontanaCuster County High School DistrictCuster CountyCuster CountyCuster45.454545%45.454545%45.5%5124.709269%24.709269%24.7%5,732,5615.73M23.760486%23.760486%23.8%17,834,66617.8M23.108006%23.108006%23.1%73,612,43873.6M22.476059%22.476059%22.5%1,948221.987686%21.987686%22.0%225,020225k21.828047%21.828047%21.8%2,61521.828047%21.828047%21.8%2,615

Age Cohorts by County Subdivision in Custer County

There are 4 county subdivisions in Custer County. This section compares all 4 of those to each other, Custer County, and other entities that contain or substantially overlap with Custer County.

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of Custer County, selected county subdivisions in Custer County, and entities that contain Custer County
0%5%10%15%20%25%Count#North CusterMountainWestUnited States of AmericaUnited StatesMontanaCuster County High School DistrictCuster CountyCuster CountyCusterMiles CityShirley-IsmaySouth Custer29.761905%29.761905%29.8%150124.709269%24.709269%24.7%5,732,5615.73M23.760486%23.760486%23.8%17,834,66617.8M23.108006%23.108006%23.1%73,612,43873.6M21.987686%21.987686%22.0%225,020225k21.828047%21.828047%21.8%2,61521.828047%21.828047%21.8%2,61521.689540%21.689540%21.7%2,339221.333333%21.333333%21.3%64315.816327%15.816327%15.8%624

Age Cohorts by County in Montana

There are 56 counties in Montana. This section compares Custer County to the 50 most populous counties in Montana and to those entities that contain or substantially overlap with Custer County. The least populous of the compared counties has a population of 1,414.

Children by County#50

Percentage of population aged 0 to 17 (%):
Scope: population of Custer County, selected other counties in Montana, and entities that contain Custer County
0%10%20%30%Count#Big Horn CountyBig HornRoosevelt CountyRooseveltGlacier CountyGlacierBlaine CountyBlaineRosebud CountyRosebudHill CountyHillFallon CountyFallonMountainPondera CountyPonderaLake CountyLakeRichland CountyRichlandChouteau CountyChouteauPrairie CountyPrairieWestTeton CountyTetonYellowstone CountyYellowstoneSweet Grass CountySweet GrassWheatland CountyWheatlandUnited States of AmericaUnited StatesValley CountyValleyCascade CountyCascadeFlathead CountyFlatheadPhillips CountyPhillipsMusselshell CountyMusselshellMontanaDawson CountyDawsonLewis and Clark CountyLewis and ClarkCuster County High School DistrictCuster CountyCuster CountyCusterSheridan CountySheridanMeagher CountyMeagherStillwater CountyStillwaterJefferson CountyJeffersonMcCone CountyMcConeGallatin CountyGallatinFergus CountyFergusBroadwater CountyBroadwaterRavalli CountyRavalliSilver Bow CountySilver BowMissoula CountyMissoulaToole CountyTooleDaniels CountyDanielsPark CountyParkLiberty CountyLibertyBeaverhead CountyBeaverheadCarbon CountyCarbonSanders CountySandersGranite CountyGraniteLincoln CountyLincolnMineral CountyMineralJudith Basin CountyJudith BasinPowder River CountyPowder RiverMadison CountyMadisonDeer Lodge CountyDeer LodgePowell CountyPowell33.547752%33.547752%33.5%4,433132.154942%32.154942%32.2%3,611231.653888%31.653888%31.7%4,335330.155848%30.155848%30.2%1,993429.364570%29.364570%29.4%2,745527.158328%27.158328%27.2%4,489625.334706%25.334706%25.3%738724.709269%24.709269%24.7%5,732,5615.73M24.602660%24.602660%24.6%1,517824.536863%24.536863%24.5%7,192924.525983%24.525983%24.5%2,7941024.498886%24.498886%24.5%1,4301124.469590%24.469590%24.5%3461223.760486%23.760486%23.8%17,834,66617.8M23.669029%23.669029%23.7%1,4361323.532290%23.532290%23.5%36,55636.6k1423.335168%23.335168%23.3%8481523.233760%23.233760%23.2%4901623.108006%23.108006%23.1%73,612,43873.6M22.610876%22.610876%22.6%1,7131722.513376%22.513376%22.5%18,47218.5k1822.425446%22.425446%22.4%21,23621.2k1922.192771%22.192771%22.2%9212022.101298%22.101298%22.1%1,0562121.987686%21.987686%22.0%225,020225k21.970099%21.970099%22.0%2,0722221.844550%21.844550%21.8%14,41514.4k2321.828047%21.828047%21.8%2,61521.828047%21.828047%21.8%2,6152421.700960%21.700960%21.7%7912521.632653%21.632653%21.6%4242621.301648%21.301648%21.3%1,9902721.032670%21.032670%21.0%2,4402820.619785%20.619785%20.6%3462920.534311%20.534311%20.5%20,11520.1k3020.404235%20.404235%20.4%2,3323120.397048%20.397048%20.4%1,1613220.306346%20.306346%20.3%8,3523319.861111%19.861111%19.9%6,8643419.418926%19.418926%19.4%21,96322.0k3519.163082%19.163082%19.2%9803619.138220%19.138220%19.1%3423719.080982%19.080982%19.1%3,0233819.022688%19.022688%19.0%4363918.718472%18.718472%18.7%1,7444018.549323%18.549323%18.5%1,9184118.505495%18.505495%18.5%2,1054218.493151%18.493151%18.5%5944318.211542%18.211542%18.2%3,5094418.044045%18.044045%18.0%7624516.304897%16.304897%16.3%3234616.140777%16.140777%16.1%2664715.710627%15.710627%15.7%1,2274815.616827%15.616827%15.6%1,4334914.780600%14.780600%14.8%1,02450

Age Cohorts by County in the United States

There are 3,142 counties in the United States. This section compares Custer County to the 50 most populous counties in the United States and to those entities that contain or substantially overlap with Custer County. The least populous of the compared counties has a population of 941,618.

Children by County#59

Percentage of population aged 0 to 17 (%):
Scope: population of Custer County, selected other counties in the United States, and entities that contain Custer County
0%5%10%15%20%25%Count#Fresno CountyFresnoSalt Lake CountySalt LakeSan Bernardino CountySan BernardinoHarris CountyHarrisTarrant CountyTarrantDallas CountyDallasRiverside CountyRiversideBexar CountyBexarBronx CountyBronxMaricopa CountyMaricopaWake CountyWakeMountainMecklenburg CountyMecklenburgMilwaukee CountyMilwaukeeSacramento CountySacramentoWayne CountyWayneFairfax CountyFairfaxClark CountyClarkWestFranklin CountyFranklinFairfield CountyFairfieldMontgomery CountyMontgomeryContra Costa CountyContra CostaKings CountyKingsHillsborough CountyHillsboroughUnited States of AmericaUnited StatesSanta Clara CountySanta ClaraTravis CountyTravisOrange CountyOrangeWestchester CountyWestchesterFulton CountyFultonLos Angeles CountyLos AngelesOrange CountyOrangeCook CountyCookSt. Louis CountySt. LouisSan Diego CountySan DiegoSuffolk CountySuffolkHennepin CountyHennepinPhiladelphia CountyPhiladelphiaNassau CountyNassauOakland CountyOaklandMontanaPima CountyPimaCuster County High School DistrictCuster CountyCuster CountyCusterHonolulu CountyHonoluluBroward CountyBrowardCuyahoga CountyCuyahogaAlameda CountyAlamedaKing CountyKingMiami-Dade CountyMiami-DadeMiddlesex CountyMiddlesexQueens CountyQueensPalm Beach CountyPalm BeachAllegheny CountyAlleghenyNew York CountyNew York28.888866%28.888866%28.9%278,246278k128.329602%28.329602%28.3%309,506310k227.363518%27.363518%27.4%576,482576k327.228891%27.228891%27.2%1,207,3991.21M427.104397%27.104397%27.1%527,866528k526.929187%26.929187%26.9%676,745677k626.401700%26.401700%26.4%613,547614k726.219361%26.219361%26.2%487,339487k825.573137%25.573137%25.6%367,431367k925.043628%25.043628%25.0%1,023,9211.02M1024.990987%24.990987%25.0%249,554250k1124.709269%24.709269%24.7%5,732,5615.73M24.574361%24.574361%24.6%248,637249k1224.468076%24.468076%24.5%233,745234k1324.396471%24.396471%24.4%360,897361k1424.179435%24.179435%24.2%427,394427k1523.983328%23.983328%24.0%271,704272k1623.862053%23.862053%23.9%493,981494k1723.760486%23.760486%23.8%17,834,66617.8M23.668593%23.668593%23.7%291,625292k1823.577077%23.577077%23.6%222,006222k1923.549379%23.549379%23.5%241,704242k2023.527315%23.527315%23.5%260,665261k2123.337305%23.337305%23.3%608,369608k2223.197227%23.197227%23.2%306,913307k2323.108006%23.108006%23.1%73,612,43873.6M23.087802%23.087802%23.1%435,218435k2423.030006%23.030006%23.0%264,425264k2523.024375%23.024375%23.0%721,172721k2622.943185%22.943185%22.9%222,372222k2722.934276%22.934276%22.9%228,599229k2822.837323%22.837323%22.8%2,296,7852.30M2922.760229%22.760229%22.8%285,881286k3022.694997%22.694997%22.7%1,186,3981.19M3122.432138%22.432138%22.4%224,447224k3222.366565%22.366565%22.4%727,664728k3322.324565%22.324565%22.3%334,451334k3422.273612%22.273612%22.3%269,347269k3522.168125%22.168125%22.2%345,809346k3622.141419%22.141419%22.1%300,415300k3722.121412%22.121412%22.1%273,247273k3821.987686%21.987686%22.0%225,020225k21.856045%21.856045%21.9%219,290219k3921.828047%21.828047%21.8%2,61521.828047%21.828047%21.8%2,61521.601744%21.601744%21.6%213,209213k4021.598472%21.598472%21.6%402,548403k4121.569623%21.569623%21.6%271,499271k4221.443331%21.443331%21.4%344,212344k4320.896492%20.896492%20.9%434,553435k4420.604500%20.604500%20.6%548,990549k4520.568254%20.568254%20.6%322,430322k4620.470812%20.470812%20.5%472,878473k4719.641010%19.641010%19.6%274,730275k4819.092867%19.092867%19.1%234,911235k4914.639548%14.639548%14.6%239,355239k50

Definitions

The US Census reports extensively on the topics of age and sex, often reporting other topics broken down by age and sex cohorts. This page reports on age and sex alone; charts presenting other topics by age and sex can be found on their topic-specific pages.

  • Children: less than 18 years old
  • College: from 18 to 21 years old
  • 20s: from 22 to 29 years old, to not overlap the college category
  • Younger Adult: from 22 to 39 years old
  • Older Adult: from 40 to 64 years old
  • Senior: more than 64 years old

For additional information about the data presented on this site, including our sources, please see the About Page.

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