Age and Sex in Fort Peck Reservation, Valley County, Montana (Census County Division)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the county subdivisions in Valley County.
Scope: population of Valley County, Fort Peck Reservation, and other county subdivisions in Valley County
Fort Peck Reservation
0.0%0.5%1.0%1.5%2.0%2.5%3.0%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-430.347%0.35%161.852%1.85%242.778%2.78%222.546%2.55%202.315%2.31%313.588%3.59%273.125%3.13%232.662%2.66%596.829%6.83%647.407%7.41%434.977%4.98%536.134%6.13%414.745%4.75%465.324%5.32%657.523%7.52%354.051%4.05%50.579%0.58%121.389%1.39%263.009%3.01%809.259%9.26%394.514%4.51%748.565%8.56%566.481%6.48%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval

Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of Valley County and Fort Peck Reservation
Female Male
Valley County
Fort Peck Reservation
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.173611%-0.268391%-0.041432%-0.173611%0.17%0.173611%0.025720%0.268391%0.199331%0.20%11613.426%13.4%-0.532407%-0.639388%-0.532407%0.53%0.532407%0.180556%0.639388%0.074446%0.712963%0.71%26931.134%31.1%-0.527263%-0.536783%-0.043999%-0.527263%0.53%0.527263%0.147891%0.536783%0.675154%0.68%18721.644%21.6%-0.520833%-0.283791%-0.089097%-0.520833%0.52%0.520833%0.202546%0.283791%0.723380%0.72%434.977%4.98%-0.707305%-0.593981%-0.707305%0.71%0.707305%0.186471%0.593981%0.068198%0.893776%0.89%24928.819%28.8%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval 265+ 340-64 422-39 518-21 60-17

Detailed Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of Valley County and Fort Peck Reservation
Female Male
Valley County
Fort Peck Reservation
Shaded bar tips show excess over facing bar.
2%1%0%1%2%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.007234%-0.007234%-0.081672%-0.046199%-0.014468%0.0%0.007234%0.081672%0.007234%0.0%30.347%0.35%-0.138889%-0.092593%-0.282471%-0.076558%-0.231481%0.2%0.138889%0.282471%0.138889%0.1%161.852%1.85%-0.162037%-0.348469%-0.073918%-0.162037%0.2%0.162037%0.231481%0.348469%0.393519%0.4%242.778%2.78%-0.231481%-0.467265%-0.231481%0.2%0.231481%0.046296%0.467265%0.034319%0.277778%0.3%222.546%2.55%-0.385802%-0.448786%-0.127596%-0.385802%0.4%0.385802%0.000000%0.448786%0.385802%0.4%202.315%2.31%-0.868056%-0.567582%-0.868056%0.9%0.868056%0.057870%0.567582%0.105597%0.925926%0.9%313.588%3.59%-0.385802%-0.270062%-0.668779%-0.145195%-0.655864%0.7%0.385802%0.668779%0.385802%0.4%273.125%3.13%-0.231481%-0.646779%-0.079197%-0.231481%0.2%0.231481%0.868056%0.646779%1.099537%1.1%232.662%2.66%-0.671296%-0.023148%-0.699578%-0.694444%0.7%0.671296%0.699578%0.377508%0.671296%0.7%596.829%6.83%-0.462963%-0.723337%-0.462963%0.5%0.462963%0.555556%0.723337%0.000000%1.018519%1.0%647.407%7.41%-0.439815%-0.504224%-0.439815%0.4%0.439815%0.115741%0.504224%0.002640%0.555556%0.6%434.977%4.98%-0.578704%-0.491024%-0.578704%0.6%0.578704%0.069444%0.491024%0.110876%0.648148%0.6%536.134%6.13%-0.370370%-0.208333%-0.498944%-0.071278%-0.578704%0.6%0.370370%0.498944%0.370370%0.4%414.745%4.75%-0.509259%-0.046296%-0.514784%-0.007920%-0.555556%0.6%0.509259%0.514784%0.509259%0.5%465.324%5.32%-0.486111%-0.514784%-0.486111%0.5%0.486111%0.532407%0.514784%0.005280%1.018519%1.0%657.523%7.52%-0.462963%-0.664379%-0.140795%-0.462963%0.5%0.462963%0.424383%0.664379%0.887346%0.9%354.051%4.05%-0.000000%-0.079197%-0.686378%0.000000%0.0%0.000000%0.578704%0.079197%0.578704%0.6%50.579%0.58%-0.694444%-0.409187%-0.694444%0.7%0.694444%0.000000%0.409187%0.079197%0.694444%0.7%121.389%1.39%-0.694444%-0.158395%-0.694444%0.7%0.694444%0.115741%0.158395%0.125396%0.810185%0.8%263.009%3.01%-0.733025%-0.615980%-0.733025%0.7%0.733025%1.620370%0.615980%0.158395%2.353395%2.4%809.259%9.26%-0.393519%-0.562302%-0.105597%-0.393519%0.4%0.393519%0.115741%0.562302%0.509259%0.5%394.514%4.51%-0.671296%-0.370370%-0.609820%-1.041667%1.0%0.671296%0.609820%0.108237%0.671296%0.7%748.565%8.56%-0.625000%-0.046296%-0.491024%-0.671296%0.7%0.625000%0.491024%0.147835%0.625000%0.6%566.481%6.48%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval

Detailed Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of Valley County and Fort Peck Reservation
More Females More Males
Valley County
Fort Peck Reservation
100%0%100%200%300%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-242018-1915-1710-145-90-4-100.000000%-56.565657%-100.000000%100.0%0.5000.5066.667%66.7%33.333%33.3%-66.666667%-27.102804%-66.666667%66.7%0.6000.6062.500%62.5%37.500%37.5%-21.212121%142.857143%142.857143%142.9%2.4292.4329.167%29.2%70.833%70.8%20.000000%7.344633%20.000000%20.0%1.2001.2045.455%45.5%54.545%54.5%0.000000%-28.431373%0.000000%0.0%1.0001.0050.000%50.0%50.000%50.0%6.666667%18.604651%6.666667%6.7%1.0671.0748.387%48.4%51.613%51.6%-70.000000%-21.710526%-70.000000%70.0%0.5880.5962.963%63.0%37.037%37.0%-12.244898%375.000000%375.000000%375.0%4.7504.7517.391%17.4%82.609%82.6%-3.448276%-3.448276%3.4%53.962264%0.9670.9750.847%50.8%49.153%49.2%0.000000%120.000000%120.000000%120.0%2.2002.2031.250%31.3%68.750%68.8%26.315789%0.523560%26.315789%26.3%1.2631.2644.186%44.2%55.814%55.8%12.000000%22.580645%12.000000%12.0%1.1201.1247.170%47.2%52.830%52.8%-56.250000%-14.285714%-56.250000%56.3%0.6400.6460.976%61.0%39.024%39.0%-9.090909%-1.538462%-9.090909%9.1%0.9170.9252.174%52.2%47.826%47.8%109.523810%1.025641%109.523810%109.5%2.0952.1032.308%32.3%67.692%67.7%-21.192053%91.666667%91.666667%91.7%1.9171.9234.286%34.3%65.714%65.7%0.000000%0.000000%0.0%19.354839%1.0001.0050.000%50.0%50.000%50.0%16.666667%79.166667%16.666667%16.7%1.1671.1746.154%46.2%53.846%53.8%221.052632%25.714286%221.052632%221.1%3.2113.2123.750%23.8%76.250%76.3%-18.779343%29.411765%29.411765%29.4%1.2941.2943.590%43.6%56.410%56.4%-55.172414%-55.172414%55.2%17.748918%0.6440.6460.811%60.8%39.189%39.2%-7.407407%-7.407407%7.4%30.107527%0.9310.9351.786%51.8%48.214%48.2%
M:F ratio of males to females in the age cohort
F females as a percentage of the age cohort
M males as a percentage of the age cohort

Age Cohorts by County Subdivision in Montana

There are 194 county subdivisions in Montana. This section compares Fort Peck Reservation to the 50 most populous county subdivisions in Montana and to those entities that contain or substantially overlap with Fort Peck Reservation. The least populous of the compared county subdivisions has a population of 3,655.

Children by County Subdivision#5

Percentage of population aged 0 to 17 (%):
Scope: population of Fort Peck Reservation, selected other county subdivisions in Montana, and entities that contain Fort Peck Reservation
0%10%20%30%Count#Crow ReservationCut BankFort Peck ReservationFort Peck Reserva…HardinBlackfeet ReservationBlackfeet Reservat…940600-2B.G. 940600-2Fort Peck ReservationFort Peck Reserva…BelgradeShepherdFlathead ReservationNorthwest YellowstoneNW YellowstoneColumbusManhattan940600Tract 940600LincolnHavreKalispellMountainLaurelGallatin GatewayKalispell NorthwestKalispell NWSidneyWestFrenchtown-WyeBillingsUnited States of AmericaUnited StatesSouth YellowstoneS YellowstoneBoulderGlasgowConradValley CountyValleyColumbia FallsCreston-BigforkGreat FallsGlendiveStevensvilleMontanaHuntley ProjectHelenaLewistownMiles CityLoloEurekaHamiltonThompson Falls-West EndThompson Falls-W …Bad Rock-Columbia HeightsBad Rock-Columbi…ButteLakeside-SomersShelbyDillonLivingstonMissoulaWhitefishLibbyBozemanAnacondaRed LodgeDeer Lodge33.794764%33.794764%33.8%2,246133.597811%33.597811%33.6%1,228232.715330%32.715330%32.7%3,088332.169269%32.169269%32.2%1,566431.016150%31.016150%31.0%3,092528.819444%28.819444%28.8%24928.819444%28.819444%28.8%24927.101008%27.101008%27.1%6,772627.047038%27.047038%27.0%1,242726.041747%26.041747%26.0%6,787826.020408%26.020408%26.0%2,091925.781626%25.781626%25.8%1,0721025.649553%25.649553%25.6%1,2341125.556893%25.556893%25.6%84925.449871%25.449871%25.4%1,5841225.162031%25.162031%25.2%3,0671324.899838%24.899838%24.9%10,44110.4k1424.709269%24.709269%24.7%5,732,5615.73M24.644863%24.644863%24.6%4,4761524.627588%24.627588%24.6%1,2731624.046046%24.046046%24.0%1,1281723.981271%23.981271%24.0%1,8951823.760486%23.760486%23.8%17,834,66617.8M23.668639%23.668639%23.7%1,6801923.160383%23.160383%23.2%26,06426.1k2023.108006%23.108006%23.1%73,612,43873.6M23.062115%23.062115%23.1%1,7972123.029557%23.029557%23.0%1,8702222.976055%22.976055%23.0%1,2092322.804817%22.804817%22.8%9092422.610876%22.610876%22.6%1,71322.598334%22.598334%22.6%2,1432522.488693%22.488693%22.5%2,1382622.487257%22.487257%22.5%15,83815.8k2722.435134%22.435134%22.4%1,8852822.419101%22.419101%22.4%3,2772921.987686%21.987686%22.0%225,020225k21.863613%21.863613%21.9%8403021.704920%21.704920%21.7%12,30312.3k3121.698113%21.698113%21.7%2,0013221.689540%21.689540%21.7%2,3393321.530084%21.530084%21.5%3,2423421.376518%21.376518%21.4%1,3203520.446312%20.446312%20.4%4,2333620.286358%20.286358%20.3%1,2613720.200602%20.200602%20.2%1,0073819.999404%19.999404%20.0%6,7113919.952494%19.952494%20.0%1,0924019.721067%19.721067%19.7%8064119.477172%19.477172%19.5%1,5874218.935476%18.935476%18.9%2,3804318.721635%18.721635%18.7%16,21216.2k4418.709336%18.709336%18.7%2,4734518.404588%18.404588%18.4%1,7654616.753237%16.753237%16.8%9,2894716.490513%16.490513%16.5%1,2954816.359387%16.359387%16.4%6304913.239075%13.239075%13.2%72150
Count number of children
# rank of county subdivision out of 50 by %

Age Cohorts by County Subdivision in the West

There are 1,950 county subdivisions in the West. This section compares Fort Peck Reservation to the 50 most populous county subdivisions in the West and to those entities that contain or substantially overlap with Fort Peck Reservation. The least populous of the compared county subdivisions has a population of 323,012.

Children by County Subdivision#14

Percentage of population aged 0 to 17 (%):
Scope: population of Fort Peck Reservation, selected other county subdivisions in the West, and entities that contain Fort Peck Reservation
0%10%20%30%Count#BakersfieldVictorville-HesperiaSouth Gate-East Los AngelesS Gate-E Los Ang…San BernardinoChandler940600-2B.G. 940600-2Fort Peck ReservationFort Peck Reserv…FresnoStocktonSalt Lake CitySalt Lk CityModestoComptonRiverside940600Tract 940600South AuroraInglewoodDowney-NorwalkPhoenixMountainOntarioBoise CityAnaheim-Santa Ana-Garden GroveAnaheim-Santa An…Beaverton-HillsboroSacramentoLong Beach-LakewoodLong Bch-LakewoodLas VegasEwaWestOceanside-EscondidoOceanside-Escond…San MateoWhittierColorado SpringsColorado SpgsUnited States of AmericaUnited StatesAlbuquerqueSan JoseEast San Gabriel ValleyE San Gabriel VlyFremontUpper San Gabriel ValleyUpper San Gabriel …Seattle EastTacomaValley CountyValleySpokaneHaywardMontanaSan DiegoCentral Contra CostaCntrl Contra CostaSan Fernando ValleySan Fernando VlyTucsonNortheast JeffersonNE JeffersonLos AngelesDenverOaklandNorth CoastPortland EastSouthwest San Gabriel ValleySW San Gabriel VlySeattleHonoluluSan Francisco30.255492%30.255492%30.3%124,377124k129.435174%29.435174%29.4%111,612112k229.165936%29.165936%29.2%146,441146k328.994345%28.994345%29.0%243,195243k428.984100%28.984100%29.0%121,788122k528.819444%28.819444%28.8%24928.819444%28.819444%28.8%24928.397448%28.397448%28.4%196,566197k628.302745%28.302745%28.3%99,59099.6k727.496527%27.496527%27.5%270,755271k827.298986%27.298986%27.3%88,17988.2k927.269923%27.269923%27.3%95,47895.5k1025.927237%25.927237%25.9%123,053123k1125.556893%25.556893%25.6%84925.535072%25.535072%25.5%98,09498.1k1225.154719%25.154719%25.2%94,09594.1k1325.088958%25.088958%25.1%105,268105k1424.820142%24.820142%24.8%790,766791k1524.709269%24.709269%24.7%5,732,5615.73M24.651051%24.651051%24.7%158,701159k1624.573713%24.573713%24.6%83,11183.1k1724.485581%24.485581%24.5%415,583416k1824.260613%24.260613%24.3%104,522105k1924.105398%24.105398%24.1%270,060270k2024.003737%24.003737%24.0%138,756139k2123.974603%23.974603%24.0%448,315448k2223.870694%23.870694%23.9%81,44881.4k2323.760486%23.760486%23.8%17,834,66617.8M23.555887%23.555887%23.6%155,230155k2423.297112%23.297112%23.3%94,14294.1k2523.292335%23.292335%23.3%75,73275.7k2623.163415%23.163415%23.2%91,42691.4k2723.108006%23.108006%23.1%73,612,43873.6M23.033158%23.033158%23.0%147,927148k2822.866327%22.866327%22.9%401,701402k2922.814001%22.814001%22.8%218,249218k3022.761568%22.761568%22.8%78,49678.5k3122.722312%22.722312%22.7%75,16775.2k3222.721955%22.721955%22.7%133,247133k3322.639000%22.639000%22.6%100,255100k3422.610876%22.610876%22.6%1,71322.471811%22.471811%22.5%81,45281.5k3522.418273%22.418273%22.4%86,88086.9k3621.987686%21.987686%22.0%225,020225k21.982996%21.982996%22.0%523,203523k3721.890089%21.890089%21.9%108,396108k3821.633042%21.633042%21.6%398,263398k3921.517750%21.517750%21.5%188,032188k4020.944454%20.944454%20.9%98,64098.6k4120.884750%20.884750%20.9%537,723538k4220.705017%20.705017%20.7%137,337137k4320.278714%20.278714%20.3%88,08188.1k4419.605378%19.605378%19.6%74,22474.2k4519.507968%19.507968%19.5%96,00396.0k4619.084224%19.084224%19.1%61,84361.8k4717.999155%17.999155%18.0%187,875188k4817.885770%17.885770%17.9%71,80671.8k4913.481174%13.481174%13.5%114,628115k50
Count number of children
# rank of county subdivision out of 50 by %

Age Cohorts by County Subdivision in the United States

There are 35,600 county subdivisions in the United States. This section compares Fort Peck Reservation to the 50 most populous county subdivisions in the United States and to those entities that contain or substantially overlap with Fort Peck Reservation. The least populous of the compared county subdivisions has a population of 547,300.

Children by County Subdivision#23

Percentage of population aged 0 to 17 (%):
Scope: population of Fort Peck Reservation, selected other county subdivisions in the United States, and entities that contain Fort Peck Reservation
0%10%20%Count#San BernardinoSouthwest DallasSW DallasNorthwest HarrisNW Harris940600-2B.G. 940600-2Fort Peck ReservationFort Peck Reserv…FresnoFort WorthSalt Lake CitySalt Lk CityNortheast TarrantNE TarrantHoustonMilwaukeeSan Antonio CentralSan Antonio CntrlEl PasoNortheast DallasNE DallasBronx940600Tract 940600PlanoTulsaDetroitPhoenixMountainOntarioTownship 1:Charlotte1, CharlotteAnaheim-Santa Ana-Garden GroveAnaheim-Santa An…SacramentoLong Beach-LakewoodLong Bch-LakewoodLas VegasWestOceanside-EscondidoOceanside-Escond…BrooklynUnited States of AmericaUnited StatesAlbuquerqueSan JoseEast San Gabriel ValleyE San Gabriel VlySeattle EastValley CountyValleyColumbusTown of HempsteadHempsteadOrlandoPhiladelphiaMontanaSan DiegoChicagoTampaAustinSan Fernando ValleySan Fernando VlyTucsonBaltimoreLos AngelesDenverQueensAtlantaMiamiSeattleWashingtonBostonManhattanSan Francisco28.994345%28.994345%29.0%243,195243k128.849273%28.849273%28.8%278,686279k228.832103%28.832103%28.8%215,729216k328.819444%28.819444%28.8%24928.819444%28.819444%28.8%24928.397448%28.397448%28.4%196,566197k427.641788%27.641788%27.6%235,492235k527.496527%27.496527%27.5%270,755271k626.987978%26.987978%27.0%154,609155k726.725236%26.725236%26.7%882,854883k826.475933%26.475933%26.5%158,504159k926.202297%26.202297%26.2%183,823184k1026.125729%26.125729%26.1%143,291143k1125.730246%25.730246%25.7%398,059398k1225.573137%25.573137%25.6%367,431367k1325.556893%25.556893%25.6%84925.541202%25.541202%25.5%139,787140k1425.334430%25.334430%25.3%150,050150k1525.218343%25.218343%25.2%172,353172k1624.820142%24.820142%24.8%790,766791k1724.709269%24.709269%24.7%5,732,5615.73M24.651051%24.651051%24.7%158,701159k1824.540635%24.540635%24.5%198,493198k1924.485581%24.485581%24.5%415,583416k2024.105398%24.105398%24.1%270,060270k2124.003737%24.003737%24.0%138,756139k2223.974603%23.974603%24.0%448,315448k2323.760486%23.760486%23.8%17,834,66617.8M23.555887%23.555887%23.6%155,230155k2423.337305%23.337305%23.3%608,369608k2523.108006%23.108006%23.1%73,612,43873.6M23.033158%23.033158%23.0%147,927148k2622.866327%22.866327%22.9%401,701402k2722.814001%22.814001%22.8%218,249218k2822.721955%22.721955%22.7%133,247133k2922.610876%22.610876%22.6%1,71322.597144%22.597144%22.6%185,081185k3022.467309%22.467309%22.5%172,708173k3122.237882%22.237882%22.2%129,541130k3222.168125%22.168125%22.2%345,809346k3321.987686%21.987686%22.0%225,020225k21.982996%21.982996%22.0%523,203523k3421.913385%21.913385%21.9%594,733595k3521.700117%21.700117%21.7%144,592145k3621.692326%21.692326%21.7%186,313186k3721.633042%21.633042%21.6%398,263398k3821.517750%21.517750%21.5%188,032188k3921.123671%21.123671%21.1%131,178131k4020.884750%20.884750%20.9%537,723538k4120.705017%20.705017%20.7%137,337137k4220.470812%20.470812%20.5%472,878473k4319.876571%19.876571%19.9%115,302115k4419.544858%19.544858%19.5%188,182188k4517.999155%17.999155%18.0%187,875188k4617.402645%17.402645%17.4%114,685115k4716.549062%16.549062%16.5%108,939109k4814.639548%14.639548%14.6%239,355239k4913.481174%13.481174%13.5%114,628115k50
Count number of children
# rank of county subdivision out of 50 by %

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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State:
Montana
County:
Valley
Unincorporated Place:
Frazer
ZIP Codes:
59201, 59225, 59230, 59244, 59248, 59253, 59260
Unified School Districts:
Glasgow K-12, Nashua K-12, Opheim K-12
Elementary School Districts:
Frazer, Lustre
Secondary School District:
Frazer
Congressional District:
MT-At Large
State Senate Districts:
MT-16, MT-17
State House Districts:
MT-31, MT-33, MT-34