Age and Sex in Lewis and Clark 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, Lewis and Clark County, and other counties in Montana
Lewis and Clark County
Montana
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-41,5732.384%2.38%1,0871.647%1.65%1,5772.390%2.39%2,7684.195%4.19%2,0703.137%3.14%1,5802.394%2.39%3,1044.704%4.70%1,9993.029%3.03%5,2868.010%8.01%5,0487.650%7.65%4,1646.310%6.31%3,7925.746%5.75%3,8295.802%5.80%4,3726.625%6.63%3,8245.795%5.79%1,7882.710%2.71%7801.182%1.18%1,2431.884%1.88%1,6902.561%2.56%2,4893.772%3.77%4,0496.136%6.14%4,1256.251%6.25%3,7525.686%5.69%
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 Montana and Lewis and Clark County
Female Male
Montana
Lewis and Clark County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.210557%-0.027404%-0.219958%-0.023869%-0.237961%0.24%0.210557%0.219958%0.210557%0.21%10,65510.7k16.147%16.1%-0.693752%-0.030490%-0.660256%-0.003944%-0.724242%0.72%0.693752%0.660256%0.693752%0.69%23,39323.4k35.450%35.4%-0.567687%-0.027530%-0.609689%-0.595217%0.60%0.567687%0.609689%0.029303%0.567687%0.57%13,81313.8k20.932%20.9%-0.633439%-0.676770%-0.633439%0.63%0.633439%0.139796%0.676770%0.078562%0.773235%0.77%3,7135.627%5.63%-0.573075%-0.593995%-0.573075%0.57%0.573075%0.067435%0.593995%0.033549%0.640511%0.64%14,41514.4k21.845%21.8%
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 Montana and Lewis and Clark County
Female Male
Montana
Lewis and Clark County
Shaded bar tips show excess over facing bar.
1.0%0.5%0.0%0.5%1.0%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.049061%-0.050861%-0.046866%-0.035531%-0.099922%0.10%0.049061%0.046866%0.049061%0.05%1,5732.384%2.38%-0.153662%-0.022125%-0.186928%-0.031738%-0.175787%0.18%0.153662%0.186928%0.153662%0.15%1,0871.647%1.65%-0.219734%-0.038491%-0.267483%-0.036936%-0.258225%0.26%0.219734%0.267483%0.219734%0.22%1,5772.390%2.39%-0.360666%-0.400121%-0.360666%0.36%0.360666%0.117595%0.400121%0.006176%0.478262%0.48%2,7684.195%4.19%-0.474321%-0.096986%-0.526680%-0.571307%0.57%0.474321%0.526680%0.001759%0.474321%0.47%2,0703.137%3.14%-0.556911%-0.083347%-0.631675%-0.640258%0.64%0.556911%0.631675%0.008208%0.556911%0.56%1,5802.394%2.39%-0.774877%-0.018185%-0.676770%-0.793061%0.79%0.774877%0.676770%0.015537%0.774877%0.77%3,1044.704%4.70%-0.642531%-0.229584%-0.724796%-0.041724%-0.872115%0.87%0.642531%0.724796%0.642531%0.64%1,9993.029%3.03%-0.794981%-0.012123%-0.745522%-0.031132%-0.807104%0.81%0.794981%0.745522%0.794981%0.79%5,2868.010%8.01%-0.746488%-0.036976%-0.694163%-0.017022%-0.783464%0.78%0.746488%0.694163%0.746488%0.75%5,0487.650%7.65%-0.620710%-0.586130%-0.620710%0.62%0.620710%0.020609%0.586130%0.005277%0.641319%0.64%4,1646.310%6.31%-0.564033%-0.021216%-0.534361%-0.585249%0.59%0.564033%0.534361%0.030526%0.564033%0.56%3,7925.746%5.75%-0.572823%-0.582143%-0.572823%0.57%0.572823%0.014851%0.582143%0.011569%0.587674%0.59%3,8295.802%5.80%-0.650411%-0.616128%-0.650411%0.65%0.650411%0.024246%0.616128%0.034825%0.674658%0.67%4,3726.625%6.63%-0.555850%-0.047281%-0.603445%-0.603131%0.60%0.555850%0.603445%0.038050%0.555850%0.56%3,8245.795%5.79%-0.375820%-0.151540%-0.655273%-0.527361%0.53%0.375820%0.655273%0.035079%0.375820%0.38%1,7882.710%2.71%-0.503114%-0.724259%-0.503114%0.50%0.503114%0.175787%0.724259%0.045144%0.678901%0.68%7801.182%1.18%-0.734971%-0.725529%-0.734971%0.73%0.734971%0.413705%0.725529%0.116671%1.148676%1.15%1,2431.884%1.88%-0.632681%-0.015154%-0.628645%-0.647835%0.65%0.632681%0.628645%0.076217%0.632681%0.63%1,6902.561%2.56%-0.565246%-0.578664%-0.565246%0.57%0.565246%0.126789%0.578664%0.055502%0.692035%0.69%2,4893.772%3.77%-0.544030%-0.592755%-0.544030%0.54%0.544030%0.139114%0.592755%0.021536%0.683144%0.68%4,0496.136%6.14%-0.624043%-0.618806%-0.624043%0.62%0.624043%0.002122%0.618806%0.033164%0.626165%0.63%4,1256.251%6.25%-0.555850%-0.579622%-0.555850%0.56%0.555850%0.025459%0.579622%0.032773%0.581309%0.58%3,7525.686%5.69%
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 Montana and Lewis and Clark County
More Females More Males
Montana
Lewis and Clark County
100%50%0%50%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-103.667954%-75.814438%-103.667954%103.7%0.4910.4967.069%67.1%32.931%32.9%-14.398422%-16.978568%-14.398422%14.4%0.8740.8753.358%53.4%46.642%46.6%-17.517241%-13.808724%-17.517241%17.5%0.8510.8554.027%54.0%45.973%46.0%32.605042%1.543421%32.605042%32.6%1.3261.3342.991%43.0%57.009%57.0%-20.447284%-20.447284%20.4%0.333952%0.8300.8354.638%54.6%45.362%45.4%-14.965986%-14.965986%15.0%1.299404%0.8700.8753.481%53.5%46.519%46.5%-2.346806%-2.346806%2.3%2.295697%0.9770.9850.580%50.6%49.420%49.4%-35.731132%-5.756657%-35.731132%35.7%0.7370.7457.579%57.6%42.421%42.4%-1.524971%-4.175841%-1.524971%1.5%0.9850.9850.378%50.4%49.622%49.6%-4.953309%-2.452140%-4.953309%5.0%0.9530.9551.208%51.2%48.792%48.8%3.320313%0.900240%3.320313%3.3%1.0331.0349.183%49.2%50.817%50.8%-3.761419%-3.761419%3.8%5.712614%0.9640.9650.923%50.9%49.077%49.1%2.592593%1.987377%2.592593%2.6%1.0261.0349.360%49.4%50.640%50.6%3.727866%5.652298%3.727866%3.7%1.0371.0449.085%49.1%50.915%50.9%-8.505998%-8.505998%8.5%6.305460%0.9220.9252.040%52.0%47.960%48.0%-40.322581%-40.322581%40.3%5.353415%0.7130.7158.389%58.4%41.611%41.6%34.939759%6.233135%34.939759%34.9%1.3491.3542.564%42.6%57.436%57.4%56.288660%16.080808%56.288660%56.3%1.5631.5639.019%39.0%60.981%61.0%-2.395210%-2.395210%2.4%12.124038%0.9770.9850.592%50.6%49.408%49.4%22.430742%9.591354%22.430742%22.4%1.2241.2244.958%45.0%55.042%55.0%25.571031%3.633247%25.571031%25.6%1.2561.2644.332%44.3%55.668%55.7%0.339971%5.359399%0.339971%0.3%1.0031.0049.915%49.9%50.085%50.1%4.580153%5.654270%4.580153%4.6%1.0461.0548.881%48.9%51.119%51.1%
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 County Subdivision in Lewis and Clark County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
11.1%14.0%16.8%19.7%22.6%25.5%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
3.1%3.7%4.2%4.8%5.3%5.9%

20s Age Cohorts by County Subdivision#7

Percentage of population aged 22 to 29 (%):
2.9%4.1%5.3%6.4%7.6%8.8%

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
7.1%8.2%9.3%10.4%11.5%12.7%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
9.8%10.6%11.3%12.0%12.8%13.5%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
15.1%17.3%19.4%21.6%23.8%26.0%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
12.5%14.1%15.7%17.2%18.8%20.3%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
4.2%5.5%6.8%8.0%9.3%10.6%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
1.5%3.0%4.5%5.9%7.4%8.9%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Tract in Lewis and Clark County

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
10.5%13.9%17.2%20.6%23.9%27.3%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
1.2%5.1%9.0%12.8%16.7%20.6%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
2.9%5.8%8.6%11.5%14.3%17.2%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
5.8%8.1%10.4%12.6%14.8%17.1%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
8.5%10.1%11.6%13.1%14.7%16.2%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
12.9%15.7%18.5%21.3%24.1%26.9%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
7.5%10.1%12.7%15.2%17.7%20.3%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
3.1%4.7%6.1%7.6%9.0%10.5%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
1.0%2.9%4.8%6.7%8.5%10.5%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in Lewis and Clark County

Children Age Cohorts by Block Group#23

Percentage of population aged 0 to 17 (%):
4%11%17%23%29%35%

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
0%11%22%32%43%54%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
0%5%11%16%21%27%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
2.3%6.2%9.9%13.7%17.5%21.3%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
4.2%7.9%11.6%15.3%19.0%22.7%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
6.3%10.7%15.1%19.4%23.7%28.1%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
4%9%15%20%26%31%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
0.9%4.2%7.3%10.5%13.7%16.9%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0.0%4.7%9.4%14.0%18.7%23.5%
Road Data ©OpenStreetMap

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Age Cohorts by Place in Lewis and Clark County

There are 11 places in Lewis and Clark County. This section compares all 11 of those to each other, Lewis and Clark County, and other entities that contain or substantially overlap with Lewis and Clark County.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of Lewis and Clark County, selected places in Lewis and Clark County, and entities that contain Lewis and Clark County
0%10%20%30%Count#Helena Valley NorthwestHelena Vly NWHelena Valley SoutheastHelena Vly SEHelena Valley West CentralHelena Vly W CntrlEast HelenaMountainWestUnited States of AmericaUnited StatesMontanaLewis and Clark CountyLewis and ClarkHelena Metro AreaHelena AreaHelena Valley NortheastHelena Vly NEHelenaLincolnAugustaHelena West SideHelena W SideMarysvilleCraig30.173935%30.173935%30.2%1,197128.489991%28.489991%28.5%2,149227.453445%27.453445%27.5%2,403326.815398%26.815398%26.8%613424.709269%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%225,020225k21.844550%21.844550%21.8%14,41514.4k21.723160%21.723160%21.7%16,85516.9k21.718453%21.718453%21.7%685517.902465%17.902465%17.9%5,389616.923077%16.923077%16.9%132714.855072%14.855072%14.9%41812.882448%12.882448%12.9%16090.000000%0.000000%0.0%0100.000000%0.000000%0.0%011
Count number of children
# rank of place out of 11 by %

Age Cohorts by County Subdivision in Lewis and Clark County

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

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of Lewis and Clark County, selected county subdivisions in Lewis and Clark County, and entities that contain Lewis and Clark County
0%5%10%15%20%25%Count#LincolnMountainWestUnited States of AmericaUnited StatesMontanaLewis and Clark CountyLewis and ClarkHelena Metro AreaHelena AreaHelenaWolf CreekAugusta25.449871%25.449871%25.4%1,584124.709269%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%225,020225k21.844550%21.844550%21.8%14,41514.4k21.723160%21.723160%21.7%16,85516.9k21.704920%21.704920%21.7%12,30312.3k218.907563%18.907563%18.9%450311.111111%11.111111%11.1%784
Count number of children
# rank of county subdivision out of 4 by %

Age Cohorts by County in the Helena Area

There are 2 counties in the Helena Area. This section compares Lewis and Clark County to all of the counties in the Helena Area and to those entities that contain or substantially overlap with Lewis and Clark County.

Children by County#50

Percentage of population aged 0 to 17 (%):
Scope: population of Lewis and Clark County, selected other counties in the Helena Area, and entities that contain Lewis and Clark County
0%5%10%15%20%Count#MountainWestUnited States of AmericaUnited StatesMontanaLewis and Clark CountyLewis and ClarkHelena Metro AreaHelena AreaJefferson CountyJefferson24.709269%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%225,020225k21.844550%21.844550%21.8%14,41514.4k121.723160%21.723160%21.7%16,85516.9k21.032670%21.032670%21.0%2,4402
Count number of children
# rank of county out of 2 by %

Age Cohorts by County in Montana

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

Children by County#59

Percentage of population aged 0 to 17 (%):
Scope: population of Lewis and Clark County, selected other counties in Montana, and entities that contain Lewis and Clark 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 CountyCusterHelena Metro AreaHelena AreaSheridan 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%2,6152421.723160%21.723160%21.7%16,85516.9k21.700960%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
Count number of children
# rank of county out of 50 by %

Age Cohorts by County in the United States

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

Children by County#68

Percentage of population aged 0 to 17 (%):
Scope: population of Lewis and Clark County, selected other counties in the United States, and entities that contain Lewis and Clark County
0%10%20%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 CountyPimaLewis and Clark CountyLewis and ClarkHelena Metro AreaHelena AreaHonolulu 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%219,290219k3921.844550%21.844550%21.8%14,41514.4k21.723160%21.723160%21.7%16,85516.9k21.601744%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
Count number of children
# rank of county 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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More Maps to Explore

Principal City:
Helena
Cities:
East Helena, Helena
Unincorporated Places:
Augusta, Craig, Helena Valley Northeast, Helena Valley Northwest, Helena Valley Southeast, Helena Valley West Central, Helena West Side, Lincoln, Marysville
ZIP Codes:
59410, 59421, 59601, 59602, 59633, 59635, 59636, 59639, 59640, 59648, 59728
Unified School District:
Lincoln K-12
Elementary School Districts:
Auchard Creek, Augusta, East Helena, Helena, Trinity, Wolf Creek
Secondary School Districts:
Augusta, Helena
Congressional District:
MT-At Large
State Senate Districts:
MT-9, MT-35, MT-40, MT-41, MT-42
State House Districts:
MT-17, MT-70, MT-79, MT-80, MT-81, MT-82, MT-83, MT-84
Neighboring Counties:
Broadwater, Cascade, Flathead, Jefferson, Meagher, Powell, Teton