Age and Sex in Flathead Reservation, Flathead 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 Flathead County.
Scope: population of Flathead County, Flathead Reservation, and other county subdivisions in Flathead County
Flathead Reservation
Flathead County
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0%1%2%3%4%5%6%7%8%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4330.000%30.0%00.000%0%440.000%40.0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%330.000%30.0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%
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 Flathead County and Flathead Reservation
Female Male
Flathead County
Flathead Reservation
Shaded bar tips show excess over facing bar.
1%0%1%Count%Senior2Older Adult3Younger Adult4College5Children6-0.833333%-0.277778%-0.228040%-0.016574%-1.111111%1.1%0.833333%0.228040%0.833333%0.8%770.000%70.0%-0.000000%-0.704190%-0.009758%0.000000%0.0%0.000000%0.000000%0.704190%0.000000%0.0%00.000%0%-0.000000%-0.544960%-0.048987%0.000000%0.0%0.000000%1.666667%0.544960%1.666667%1.7%330.000%30.0%-0.000000%-0.511637%0.000000%0.0%0.000000%0.000000%0.511637%0.128041%0.000000%0.0%00.000%0%-0.000000%-0.593243%0.000000%0.0%0.000000%0.000000%0.593243%0.059371%0.000000%0.0%00.000%0%
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 Flathead County and Flathead Reservation
Female Male
Flathead County
Flathead Reservation
Shaded bar tips show excess over facing bar.
8%6%4%2%0%2%4%6%8%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.000000%-0.041250%-0.025278%0.000000%0.0%0.000000%1.875000%0.041250%1.875000%1.9%330.000%30.0%-0.000000%-0.152699%-0.031680%0.000000%0.0%0.000000%0.000000%0.152699%0.000000%0.0%00.000%0%-0.000000%-8.000000%-0.316381%-0.036116%-8.000000%8.0%0.000000%0.316381%0.000000%0.0%440.000%40.0%-0.000000%-0.388401%-0.051956%0.000000%0.0%0.000000%0.000000%0.388401%0.000000%0.0%00.000%0%-0.000000%-0.479429%0.000000%0.0%0.000000%0.000000%0.479429%0.075681%0.000000%0.0%00.000%0%-0.000000%-0.708583%0.000000%0.0%0.000000%0.000000%0.708583%0.089761%0.000000%0.0%00.000%0%-0.000000%-0.684647%0.000000%0.0%0.000000%0.000000%0.684647%0.061601%0.000000%0.0%00.000%0%-0.000000%-0.790424%-0.004224%0.000000%0.0%0.000000%0.000000%0.790424%0.000000%0.0%00.000%0%-0.000000%-0.812917%-0.121652%0.000000%0.0%0.000000%0.000000%0.812917%0.000000%0.0%00.000%0%-0.000000%-0.706471%-0.048999%0.000000%0.0%0.000000%0.000000%0.706471%0.000000%0.0%00.000%0%-0.000000%-0.602560%0.000000%0.0%0.000000%0.000000%0.602560%0.004435%0.000000%0.0%00.000%0%-0.000000%-0.548492%0.000000%0.0%0.000000%0.000000%0.548492%0.082158%0.000000%0.0%00.000%0%-0.000000%-0.558841%-0.057025%0.000000%0.0%0.000000%0.000000%0.558841%0.000000%0.0%00.000%0%-0.000000%-0.629171%-0.010771%0.000000%0.0%0.000000%0.000000%0.629171%0.000000%0.0%00.000%0%-0.000000%-0.523359%-0.027667%0.000000%0.0%0.000000%6.000000%0.523359%6.000000%6.0%330.000%30.0%-0.000000%-0.417476%-0.134817%0.000000%0.0%0.000000%0.000000%0.417476%0.000000%0.0%00.000%0%-0.000000%-0.405508%0.000000%0.0%0.000000%0.000000%0.405508%0.271395%0.000000%0.0%00.000%0%-0.000000%-0.621990%0.000000%0.0%0.000000%0.000000%0.621990%0.008448%0.000000%0.0%00.000%0%-0.000000%-0.509525%0.000000%0.0%0.000000%0.000000%0.509525%0.116161%0.000000%0.0%00.000%0%-0.000000%-0.611782%0.000000%0.0%0.000000%0.000000%0.611782%0.046464%0.000000%0.0%00.000%0%-0.000000%-0.616922%0.000000%0.0%0.000000%0.000000%0.616922%0.111092%0.000000%0.0%00.000%0%-0.000000%-0.586720%0.000000%0.0%0.000000%0.000000%0.586720%0.013517%0.000000%0.0%00.000%0%-0.000000%-0.564966%0.000000%0.0%0.000000%0.000000%0.564966%0.061249%0.000000%0.0%00.000%0%
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 Flathead County and Flathead Reservation
More Females More Males
Flathead County
Flathead Reservation
1,000%500%0%M:FFM75-79-1,000.000000%-11.415220%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%
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

Map of Age Cohorts by Block in Flathead Reservation

Children Age Cohorts by Block#5

Percentage of population aged 0 to 17 (%):
0%13%27%40%53%67%

20s Age Cohorts by Block#7

Percentage of population aged 22 to 29 (%):
0%7%13%20%27%34%

30s Age Cohorts by Block#8

Percentage of population aged 30 to 39 (%):
0%7%13%20%27%34%

40s Age Cohorts by Block#9

Percentage of population aged 40 to 49 (%):
0%7%13%20%27%34%

50s Age Cohorts by Block#10

Percentage of population aged 50 to 59 (%):
0%10%20%30%40%50%

60s Age Cohorts by Block#11

Percentage of population aged 60 to 69 (%):
0%20%40%60%80%100%

70s Age Cohorts by Block#12

Percentage of population aged 70 to 79 (%):
0.0%4.0%8.0%12.0%16.0%20.0%

80+ Age Cohorts by Block#13

Percentage of population aged 80 and older (%):
0%10%20%30%40%50%
Road Data ©OpenStreetMap

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Age Cohorts by County Subdivision in the Kalispell Area

There are 11 county subdivisions in the Kalispell Area. This section compares Flathead Reservation to all of the county subdivisions in the Kalispell Area and to those entities that contain or substantially overlap with Flathead Reservation.

Children by County Subdivision#14

Percentage of population aged 0 to 17 (%):
Scope: population of Flathead Reservation, selected other county subdivisions in the Kalispell Area, and entities that contain Flathead Reservation
0%5%10%15%20%Count#KalispellMountainKalispell NorthwestKalispell NWFlathead High School DistrictFlatheadWestUnited States of AmericaUnited StatesColumbia FallsCreston-BigforkKalispell Metro AreaKalispellFlathead CountyFlatheadMontana001700Tract 001700Bad Rock-Columbia HeightsBad Rock-Columbi…Lakeside-SomersKila Elementary School DistrictKilaWhitefishKalispell SouthwestKalispell SWZIP Code 59845ZIP 59845South ForkGlacier National ParkGlacier National Pk001700-2B.G. 001700-2Flathead ReservationFlathead Reserv…24.899838%24.899838%24.9%10,44110.4k124.709269%24.709269%24.7%5,732,5615.73M24.046046%24.046046%24.0%1,128223.994780%23.994780%24.0%14,52514.5k23.760486%23.760486%23.8%17,834,66617.8M23.108006%23.108006%23.1%73,612,43873.6M22.598334%22.598334%22.6%2,143322.488693%22.488693%22.5%2,138422.425446%22.425446%22.4%21,23621.2k22.425446%22.425446%22.4%21,23621.2k21.987686%21.987686%22.0%225,020225k21.138111%21.138111%21.1%1,70520.200602%20.200602%20.2%1,007519.952494%19.952494%20.0%1,092618.973863%18.973863%19.0%39218.709336%18.709336%18.7%2,473717.147103%17.147103%17.1%577813.559322%13.559322%13.6%14412.473348%12.473348%12.5%23491.923077%1.923077%1.9%3100.000000%0.000000%0.0%00.000000%0.000000%0.0%011
Count number of children
# rank of county subdivision out of 11 by %

Age Cohorts by County Subdivision in Montana

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

Children by County Subdivision#23

Percentage of population aged 0 to 17 (%):
Scope: population of Flathead Reservation, selected other county subdivisions in Montana, and entities that contain Flathead Reservation
0%10%20%30%Count#Crow ReservationCut BankFort Peck ReservationFort Peck Reserva…HardinBlackfeet ReservationBlackfeet Reservat…BelgradeShepherdFlathead ReservationNorthwest YellowstoneNW YellowstoneColumbusManhattanLincolnHavreKalispellMountainLaurelGallatin GatewayKalispell NorthwestKalispell NWFlathead High School DistrictFlatheadSidneyWestFrenchtown-WyeBillingsUnited States of AmericaUnited StatesSouth YellowstoneS YellowstoneBoulderGlasgowConradColumbia FallsCreston-BigforkGreat FallsGlendiveKalispell Metro AreaKalispellFlathead CountyFlatheadStevensvilleMontanaHuntley ProjectHelenaLewistownMiles CityLoloEureka001700Tract 001700HamiltonThompson Falls-West EndThompson Falls-W …Bad Rock-Columbia HeightsBad Rock-Columbi…ButteLakeside-SomersShelbyDillonKila Elementary School DistrictKilaLivingstonMissoulaWhitefishLibbyBozemanAnacondaRed LodgeZIP Code 59845ZIP 59845Deer Lodge001700-2B.G. 001700-2Flathead Reservation33.794764%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%3,092527.101008%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%1,2341125.449871%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%1,1281723.994780%23.994780%24.0%14,52514.5k23.981271%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%9092422.598334%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%1,8852822.425446%22.425446%22.4%21,23621.2k22.425446%22.425446%22.4%21,23621.2k22.419101%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%1,3203521.138111%21.138111%21.1%1,70520.446312%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%1,5874218.973863%18.973863%19.0%39218.935476%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%6304913.559322%13.559322%13.6%14413.239075%13.239075%13.2%721500.000000%0.000000%0.0%00.000000%0.000000%0.0%0
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 Flathead Reservation to the 50 most populous county subdivisions in the West and to those entities that contain or substantially overlap with Flathead Reservation. The least populous of the compared county subdivisions has a population of 323,012.

Children by County Subdivision#32

Percentage of population aged 0 to 17 (%):
Scope: population of Flathead Reservation, selected other county subdivisions in the West, and entities that contain Flathead Reservation
0%10%20%30%Count#BakersfieldVictorville-HesperiaSouth Gate-East Los AngelesS Gate-E Los Ang…San BernardinoChandlerFresnoStocktonSalt Lake CitySalt Lk CityModestoComptonRiversideSouth AuroraInglewoodDowney-NorwalkPhoenixMountainOntarioBoise CityAnaheim-Santa Ana-Garden GroveAnaheim-Santa An…Beaverton-HillsboroSacramentoLong Beach-LakewoodLong Bch-LakewoodFlathead High School DistrictFlatheadLas VegasEwaWestOceanside-EscondidoOceanside-Escond…San MateoWhittierColorado SpringsColorado SpgsUnited States of AmericaUnited StatesAlbuquerqueSan JoseEast San Gabriel ValleyE San Gabriel VlyFremontUpper San Gabriel ValleyUpper San Gabriel …Seattle EastTacomaSpokaneKalispell Metro AreaKalispellFlathead CountyFlatheadHaywardMontanaSan DiegoCentral Contra CostaCntrl Contra CostaSan Fernando ValleySan Fernando VlyTucson001700Tract 001700Northeast JeffersonNE JeffersonLos AngelesDenverOaklandNorth CoastPortland EastSouthwest San Gabriel ValleySW San Gabriel VlyKila Elementary School DistrictKilaSeattleHonoluluZIP Code 59845ZIP 59845San Francisco001700-2B.G. 001700-2Flathead ReservationFlathead Reserv…30.255492%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%121,788122k528.397448%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%123,053123k1125.535072%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%138,756139k2123.994780%23.994780%24.0%14,52514.5k23.974603%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%100,255100k3422.471811%22.471811%22.5%81,45281.5k3522.425446%22.425446%22.4%21,23621.2k22.425446%22.425446%22.4%21,23621.2k22.418273%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%188,032188k4021.138111%21.138111%21.1%1,70520.944454%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%61,84361.8k4718.973863%18.973863%19.0%39217.999155%17.999155%18.0%187,875188k4817.885770%17.885770%17.9%71,80671.8k4913.559322%13.559322%13.6%14413.481174%13.481174%13.5%114,628115k500.000000%0.000000%0.0%00.000000%0.000000%0.0%0
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 Flathead Reservation to the 50 most populous county subdivisions in the United States and to those entities that contain or substantially overlap with Flathead Reservation. The least populous of the compared county subdivisions has a population of 547,300.

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of Flathead Reservation, selected other county subdivisions in the United States, and entities that contain Flathead Reservation
0%10%20%Count#San BernardinoSouthwest DallasSW DallasNorthwest HarrisNW HarrisFresnoFort WorthSalt Lake CitySalt Lk CityNortheast TarrantNE TarrantHoustonMilwaukeeSan Antonio CentralSan Antonio CntrlEl PasoNortheast DallasNE DallasBronxPlanoTulsaDetroitPhoenixMountainOntarioTownship 1:Charlotte1, CharlotteAnaheim-Santa Ana-Garden GroveAnaheim-Santa An…SacramentoLong Beach-LakewoodLong Bch-LakewoodFlathead High School DistrictFlatheadLas VegasWestOceanside-EscondidoOceanside-Escond…BrooklynUnited States of AmericaUnited StatesAlbuquerqueSan JoseEast San Gabriel ValleyE San Gabriel VlySeattle EastColumbusTown of HempsteadHempsteadKalispell Metro AreaKalispellFlathead CountyFlatheadOrlandoPhiladelphiaMontanaSan DiegoChicagoTampaAustinSan Fernando ValleySan Fernando VlyTucson001700Tract 001700BaltimoreLos AngelesDenverQueensAtlantaMiamiKila Elementary School DistrictKilaSeattleWashingtonBostonManhattanZIP Code 59845ZIP 59845San Francisco001700-2B.G. 001700-2Flathead ReservationFlathead Reserv…28.994345%28.994345%29.0%243,195243k128.849273%28.849273%28.8%278,686279k228.832103%28.832103%28.8%215,729216k328.397448%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%367,431367k1325.541202%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%138,756139k2223.994780%23.994780%24.0%14,52514.5k23.974603%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%133,247133k2922.597144%22.597144%22.6%185,081185k3022.467309%22.467309%22.5%172,708173k3122.425446%22.425446%22.4%21,23621.2k22.425446%22.425446%22.4%21,23621.2k22.237882%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%188,032188k3921.138111%21.138111%21.1%1,70521.123671%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%188,182188k4518.973863%18.973863%19.0%39217.999155%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%239,355239k4913.559322%13.559322%13.6%14413.481174%13.481174%13.5%114,628115k500.000000%0.000000%0.0%00.000000%0.000000%0.0%0
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:
Flathead
Metro Area:
Kalispell Area
Unincorporated Place:
Niarada
ZIP Code:
59845
Elementary School District:
Kila
Secondary School District:
Flathead
Congressional District:
MT-At Large
State Senate District:
MT-7
State House District:
MT-13