Age and Sex in Prairie 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, Prairie County, and other counties in Montana
Prairie County
Montana
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%2.0%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4453.182%3.18%543.819%3.82%352.475%2.48%815.728%5.73%926.506%6.51%594.173%4.17%715.021%5.02%614.314%4.31%15811.174%11.2%594.173%4.17%594.173%4.17%1107.779%7.78%543.819%3.82%342.405%2.40%402.829%2.83%231.627%1.63%00.000%0%201.414%1.41%130.919%0.92%473.324%3.32%1349.477%9.48%775.446%5.45%886.223%6.22%

Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of Montana and Prairie County
Female Male
Montana
Prairie County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.359500%-0.219958%-0.023869%-0.359500%0.36%0.359500%0.000000%0.219958%0.359500%0.36%36625.884%25.9%-0.724187%-0.660256%-0.003944%-0.724187%0.72%0.724187%0.016973%0.660256%0.741160%0.74%51836.634%36.6%-0.251454%-0.609689%-0.251454%0.25%0.251454%0.090366%0.609689%0.029303%0.341820%0.34%15110.679%10.7%-0.123762%-0.676770%-0.123762%0.12%0.123762%0.335926%0.676770%0.078562%0.459689%0.46%332.334%2.33%-0.616847%-0.593995%-0.616847%0.62%0.616847%0.125727%0.593995%0.033549%0.742574%0.74%34624.470%24.5%

Detailed Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of Montana and Prairie County
Female Male
Montana
Prairie County
Shaded bar tips show excess over facing bar.
1.0%0.5%0.0%0.5%1.0%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.088402%-0.022100%-0.046866%-0.035531%-0.110502%0.11%0.088402%0.046866%0.088402%0.09%453.182%3.18%-0.353607%-0.056577%-0.186928%-0.031738%-0.410184%0.41%0.353607%0.186928%0.353607%0.35%543.819%3.82%-0.212164%-0.070721%-0.267483%-0.036936%-0.282885%0.28%0.212164%0.267483%0.212164%0.21%352.475%2.48%-0.480905%-0.400121%-0.480905%0.48%0.480905%0.183876%0.400121%0.006176%0.664781%0.66%815.728%5.73%-0.990099%-0.526680%-0.990099%0.99%0.990099%0.188590%0.526680%0.001759%1.178689%1.18%926.506%6.51%-0.919378%-0.247525%-0.631675%-1.166902%1.17%0.919378%0.631675%0.008208%0.919378%0.92%594.173%4.17%-0.495050%-0.676770%-0.495050%0.50%0.495050%0.683640%0.676770%0.015537%1.178689%1.18%715.021%5.02%-0.742574%-0.671853%-0.724796%-0.041724%-1.414427%1.41%0.742574%0.724796%0.742574%0.74%614.314%4.31%-1.103253%-0.028289%-0.745522%-0.031132%-1.131542%1.13%1.103253%0.745522%1.103253%1.10%15811.174%11.2%-0.396040%-0.694163%-0.017022%-0.396040%0.40%0.396040%0.042433%0.694163%0.438472%0.44%594.173%4.17%-0.396040%-0.042433%-0.586130%-0.438472%0.44%0.396040%0.586130%0.005277%0.396040%0.40%594.173%4.17%-0.763791%-0.028289%-0.534361%-0.792079%0.79%0.763791%0.534361%0.030526%0.763791%0.76%1107.779%7.78%-0.325318%-0.113154%-0.582143%-0.438472%0.44%0.325318%0.582143%0.011569%0.325318%0.33%543.819%3.82%-0.212164%-0.056577%-0.616128%-0.268741%0.27%0.212164%0.616128%0.034825%0.212164%0.21%342.405%2.40%-0.070721%-0.603445%-0.070721%0.07%0.070721%0.424328%0.603445%0.038050%0.495050%0.50%402.829%2.83%-0.212164%-0.655273%-0.212164%0.21%0.212164%0.117869%0.655273%0.035079%0.330033%0.33%231.627%1.63%-0.000000%-0.724259%0.000000%0.00%0.000000%0.000000%0.724259%0.045144%0.000000%0.00%00.000%0%-0.495050%-0.725529%-0.495050%0.50%0.495050%0.424328%0.725529%0.116671%0.919378%0.92%201.414%1.41%-0.000000%-0.628645%0.000000%0.00%0.000000%0.459689%0.628645%0.076217%0.459689%0.46%130.919%0.92%-0.447902%-0.578664%-0.447902%0.45%0.447902%0.212164%0.578664%0.055502%0.660066%0.66%473.324%3.32%-0.891089%-0.113154%-0.592755%-1.004243%1.00%0.891089%0.592755%0.021536%0.891089%0.89%1349.477%9.48%-0.523338%-0.618806%-0.523338%0.52%0.523338%0.042433%0.618806%0.033164%0.565771%0.57%775.446%5.45%-0.424328%-0.579622%-0.424328%0.42%0.424328%0.396040%0.579622%0.032773%0.820368%0.82%886.223%6.22%

Detailed Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of Montana and Prairie County
More Females More Males
Montana
Prairie County
0%200%400%600%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-242015-1710-145-90-4-25.000000%-75.814438%-25.000000%25.0%0.8000.8055.556%55.6%44.444%44.4%-16.000000%-16.978568%-16.000000%16.0%0.8620.8653.704%53.7%46.296%46.3%-33.333333%-13.808724%-33.333333%33.3%0.7500.7557.143%57.1%42.857%42.9%38.235294%1.543421%38.235294%38.2%1.3821.3841.975%42.0%58.025%58.0%19.047619%0.333952%19.047619%19.0%1.1901.1945.652%45.7%54.348%54.3%-26.923077%-26.923077%26.9%1.299404%0.7880.7955.932%55.9%44.068%44.1%138.095238%2.295697%138.095238%138.1%2.3812.3829.577%29.6%70.423%70.4%-90.476190%-5.756657%-90.476190%90.5%0.5250.5365.574%65.6%34.426%34.4%-2.564103%-4.175841%-2.564103%2.6%0.9750.9850.633%50.6%49.367%49.4%-2.452140%10.714286%10.714286%10.7%1.1071.1147.458%47.5%52.542%52.5%-10.714286%-10.714286%10.7%0.900240%0.9030.9052.542%52.5%47.458%47.5%-3.703704%-3.703704%3.7%5.712614%0.9640.9650.909%50.9%49.091%49.1%-34.782609%-34.782609%34.8%1.987377%0.7420.7457.407%57.4%42.593%42.6%-26.666667%-26.666667%26.7%5.652298%0.7890.7955.882%55.9%44.118%44.1%600.000000%6.305460%600.000000%600.0%7.0007.0012.500%12.5%87.500%87.5%55.555556%5.353415%55.555556%55.6%1.5561.5639.130%39.1%60.870%60.9%85.714286%16.080808%85.714286%85.7%1.8571.8635.000%35.0%65.000%65.0%47.368421%9.591354%47.368421%47.4%1.4741.4740.426%40.4%59.574%59.6%-12.698413%-12.698413%12.7%3.633247%0.8870.8952.985%53.0%47.015%47.0%8.108108%5.359399%8.108108%8.1%1.0811.0848.052%48.1%51.948%51.9%93.333333%5.654270%93.333333%93.3%1.9331.9334.091%34.1%65.909%65.9%

Map of Age Cohorts by County Subdivision in Prairie County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
8.2%11.8%15.4%19.0%22.6%26.2%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
0.0%0.5%1.0%1.5%2.1%2.6%

20s Age Cohorts by County Subdivision#7

Percentage of population aged 22 to 29 (%):
2.23%2.73%3.22%3.71%4.20%4.69%

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
5.97%6.03%6.08%6.14%6.19%6.25%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
0.0%2.6%5.3%7.9%10.6%13.3%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
14.2%16.6%19.0%21.4%23.7%26.2%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
18.2%22.0%25.8%29.7%33.5%37.4%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
8.12%8.29%8.46%8.62%8.79%8.96%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
6.5%7.5%8.4%9.3%10.3%11.2%
Road Data ©OpenStreetMap

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Age Cohorts by Place in Prairie County

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

Children by Place#14

Percentage of population aged 0 to 17 (%):
Scope: population of Prairie County, selected places in Prairie County, and entities that contain Prairie County
0%5%10%15%20%25%30%Count#TerryMountainTerry K-12 SchoolsTerry K-12Prairie CountyPrairieWestUnited States of AmericaUnited StatesMontanaFallon30.281690%30.281690%30.3%258124.709269%24.709269%24.7%5,732,5615.73M24.469590%24.469590%24.5%34624.469590%24.469590%24.5%34623.760486%23.760486%23.8%17,834,66617.8M23.108006%23.108006%23.1%73,612,43873.6M21.987686%21.987686%22.0%225,020225k21.935484%21.935484%21.9%342

Age Cohorts by County Subdivision in Prairie County

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

Children by County Subdivision#23

Percentage of population aged 0 to 17 (%):
Scope: population of Prairie County, selected county subdivisions in Prairie County, and entities that contain Prairie County
0%5%10%15%20%25%Count#Terry SouthMountainTerry K-12 SchoolsTerry K-12Prairie CountyPrairieWestUnited States of AmericaUnited StatesMontanaTerry North26.171875%26.171875%26.2%335124.709269%24.709269%24.7%5,732,5615.73M24.469590%24.469590%24.5%34624.469590%24.469590%24.5%34623.760486%23.760486%23.8%17,834,66617.8M23.108006%23.108006%23.1%73,612,43873.6M21.987686%21.987686%22.0%225,020225k8.208955%8.208955%8.2%112

Age Cohorts by County in Montana

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

Children by County#32

Percentage of population aged 0 to 17 (%):
Scope: population of Prairie County, selected other counties in Montana, and entities that contain Prairie County
0%10%20%30%Count#Big Horn CountyBig HornRoosevelt CountyRooseveltGlacier CountyGlacierBlaine CountyBlaineRosebud CountyRosebudHill CountyHillFallon CountyFallonMountainPondera CountyPonderaLake CountyLakeRichland CountyRichlandChouteau CountyChouteauTerry K-12 SchoolsTerry K-12Prairie CountyPrairieWestTeton CountyTetonYellowstone CountyYellowstoneSweet Grass CountySweet GrassWheatland CountyWheatlandUnited States of AmericaUnited StatesValley CountyValleyCascade CountyCascadeFlathead CountyFlatheadPhillips CountyPhillipsMusselshell CountyMusselshellMontanaDawson CountyDawsonLewis and Clark CountyLewis and ClarkCuster 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%34624.469590%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%2,6152421.700960%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 Prairie County to the 50 most populous counties in the United States and to those entities that contain or substantially overlap with Prairie County. The least populous of the compared counties has a population of 941,618.

Children by County#41

Percentage of population aged 0 to 17 (%):
Scope: population of Prairie County, selected other counties in the United States, and entities that contain Prairie County
0%5%10%15%20%25%Count#Fresno CountyFresnoSalt Lake CountySalt LakeSan Bernardino CountySan BernardinoHarris CountyHarrisTarrant CountyTarrantDallas CountyDallasRiverside CountyRiversideBexar CountyBexarBronx CountyBronxMaricopa CountyMaricopaWake CountyWakeMountainMecklenburg CountyMecklenburgTerry K-12 SchoolsTerry K-12Prairie CountyPrairieMilwaukee 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 CountyPimaHonolulu 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%248,637249k1224.469590%24.469590%24.5%34624.469590%24.469590%24.5%34624.468076%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%219,290219k3921.601744%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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