Age and Sex in Johnson County, Iowa (County)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the counties in Iowa.
Scope: population of Iowa, Johnson County, and other counties in Iowa
Johnson County
Iowa
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0%1%2%3%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-42,0601.451%1.45%1,6131.136%1.14%2,1411.508%1.51%3,2242.270%2.27%2,7911.965%1.97%2,1121.487%1.49%3,9122.755%2.75%2,8241.989%1.99%7,9895.626%5.63%7,5625.325%5.33%7,1485.034%5.03%7,4575.251%5.25%9,1086.414%6.41%10,83110.8k7.627%7.63%12,42112.4k8.747%8.75%11,67011.7k8.218%8.22%5,6063.948%3.95%4,9823.508%3.51%7,9585.604%5.60%4,2332.981%2.98%7,4965.279%5.28%8,1085.710%5.71%8,7606.169%6.17%
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 Iowa and Johnson County
Female Male
Iowa
Johnson County
Shaded bar tips show excess over facing bar.
1%0%1%Count%Senior2Older Adult3Younger Adult4College5Children6-0.121885%-0.028931%-0.192490%-0.053856%-0.150815%0.2%0.121885%0.192490%0.121885%0.1%13,94113.9k9.817%9.82%-0.506655%-0.025858%-0.638182%-0.532513%0.5%0.506655%0.638182%0.001353%0.506655%0.5%36,89236.9k25.979%26.0%-0.835724%-0.619125%-0.835724%0.8%0.835724%0.051093%0.619125%0.025145%0.886817%0.9%44,03044.0k31.006%31.0%-1.611552%-0.041900%-0.735381%-1.653451%1.7%1.611552%0.735381%0.054111%1.611552%1.6%18,54618.5k13.060%13.1%-0.556627%-0.634612%-0.556627%0.6%0.556627%0.005516%0.634612%0.031800%0.562144%0.6%28,59728.6k20.138%20.1%
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 Iowa and Johnson County
Female Male
Iowa
Johnson County
Shaded bar tips show excess over facing bar.
2%1%0%1%2%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.025043%-0.040579%-0.051411%-0.053545%-0.065622%0.1%0.025043%0.051411%0.025043%0.0%2,0601.451%1.45%-0.094362%-0.038449%-0.174468%-0.075066%-0.132811%0.1%0.094362%0.174468%0.094362%0.1%1,6131.136%1.14%-0.148867%-0.003803%-0.248144%-0.065989%-0.152670%0.2%0.148867%0.248144%0.148867%0.1%2,1411.508%1.51%-0.224216%-0.334521%-0.038389%-0.224216%0.2%0.224216%0.005634%0.334521%0.229849%0.2%3,2242.270%2.27%-0.313367%-0.028403%-0.424367%-0.036879%-0.341770%0.3%0.313367%0.424367%0.313367%0.3%2,7911.965%1.97%-0.340831%-0.061969%-0.524144%-0.037115%-0.402800%0.4%0.340831%0.524144%0.340831%0.3%2,1121.487%1.49%-0.441061%-0.036149%-0.595229%-0.000536%-0.477210%0.5%0.441061%0.595229%0.441061%0.4%3,9122.755%2.75%-0.480966%-0.663219%-0.010462%-0.480966%0.5%0.480966%0.032393%0.663219%0.513359%0.5%2,8241.989%1.99%-0.531245%-0.062673%-0.675983%-0.012541%-0.593919%0.6%0.531245%0.675983%0.531245%0.5%7,9895.626%5.63%-0.523358%-0.018309%-0.690906%-0.006245%-0.541667%0.5%0.523358%0.690906%0.523358%0.5%7,5625.325%5.33%-0.495613%-0.607007%-0.495613%0.5%0.495613%0.015492%0.607007%0.012683%0.511105%0.5%7,1485.034%5.03%-0.497585%-0.055068%-0.571295%-0.552653%0.6%0.497585%0.571295%0.017376%0.497585%0.5%7,4575.251%5.25%-0.592369%-0.587487%-0.592369%0.6%0.592369%0.098024%0.587487%0.012483%0.690393%0.7%9,1086.414%6.41%-0.738842%-0.628104%-0.738842%0.7%0.738842%0.047744%0.628104%0.026170%0.786586%0.8%10,83110.8k7.627%7.63%-0.823909%-0.601386%-0.823909%0.8%0.823909%0.101545%0.601386%0.033864%0.925454%0.9%12,42112.4k8.747%8.75%-1.316846%-0.105629%-0.686455%-1.422475%1.4%1.316846%0.686455%0.030011%1.316846%1.3%11,67011.7k8.218%8.22%-1.875977%-0.195766%-0.733441%-2.071743%2.1%1.875977%0.733441%0.046900%1.875977%1.9%5,6063.948%3.95%-1.528809%-0.770169%-1.528809%1.5%1.528809%0.450685%0.770169%0.056074%1.979494%2.0%4,9823.508%3.51%-1.295368%-0.211259%-0.718956%-1.506626%1.5%1.295368%0.718956%0.056734%1.295368%1.3%7,9585.604%5.60%-0.483313%-0.026994%-0.640338%-0.510307%0.5%0.483313%0.640338%0.030076%0.483313%0.5%4,2332.981%2.98%-0.504767%-0.639003%-0.504767%0.5%0.504767%0.046195%0.639003%0.033033%0.550963%0.6%7,4965.279%5.28%-0.552089%-0.037745%-0.643465%-0.589834%0.6%0.552089%0.643465%0.031842%0.552089%0.6%8,1085.710%5.71%-0.603073%-0.617932%-0.603073%0.6%0.603073%0.027604%0.617932%0.031559%0.630678%0.6%8,7606.169%6.17%
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 Iowa and Johnson County
More Females More Males
Iowa
Johnson County
150%100%50%0%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-162.038664%-104.151992%-162.038664%162.0%0.3820.3872.379%72.4%27.621%27.6%-40.746269%-43.025830%-40.746269%40.7%0.7100.7158.462%58.5%41.538%41.5%-2.554399%-26.592985%-2.554399%2.6%0.9750.9850.631%50.6%49.369%49.4%-11.475915%2.512563%2.512563%2.5%1.0251.0349.380%49.4%50.620%50.6%-9.063670%-8.690265%-9.063670%9.1%0.9170.9252.168%52.2%47.832%47.8%-18.181818%-7.081005%-18.181818%18.2%0.8460.8554.167%54.2%45.833%45.8%-8.195849%-0.090132%-8.195849%8.2%0.9240.9251.968%52.0%48.032%48.0%-1.577402%6.734993%6.734993%6.7%1.0671.0748.371%48.4%51.629%51.6%-11.797455%-1.855238%-11.797455%11.8%0.8940.8952.785%52.8%47.215%47.2%-3.498385%-0.903856%-3.498385%3.5%0.9660.9750.860%50.9%49.140%49.1%3.125888%2.089388%3.125888%3.1%1.0311.0349.231%49.2%50.769%50.8%-11.067082%-11.067082%11.1%3.041504%0.9000.9052.622%52.6%47.378%47.4%16.547789%2.124838%16.547789%16.5%1.1651.1746.179%46.2%53.821%53.8%6.462066%4.166539%6.462066%6.5%1.0651.0648.435%48.4%51.565%51.6%12.324786%5.630908%12.324786%12.3%1.1231.1247.098%47.1%52.902%52.9%-8.021390%-8.021390%8.0%4.371952%0.9260.9351.928%51.9%48.072%48.1%-10.435435%-10.435435%10.4%6.394558%0.9060.9152.479%52.5%47.521%47.5%29.479503%7.280782%29.479503%29.5%1.2951.2943.577%43.6%56.423%56.4%-16.308780%-16.308780%16.3%7.891202%0.8600.8653.770%53.8%46.230%46.2%-5.585236%-5.585236%5.6%4.696873%0.9470.9551.358%51.4%48.642%48.6%9.151786%5.169461%9.151786%9.2%1.0921.0947.812%47.8%52.188%52.2%-6.836735%-6.836735%6.8%4.948524%0.9360.9451.653%51.7%48.347%48.3%4.577300%5.107154%4.577300%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 Johnson County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
11%17%23%28%34%40%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
0.0%4.3%8.6%12.9%17.2%21.5%

20s Age Cohorts by County Subdivision#7

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

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
0%5%10%16%21%26%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
4%10%17%23%29%36%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
8%15%21%26%32%39%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
3.0%6.8%10.6%14.4%18.2%22.1%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
0%6%13%19%26%33%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
0.0%1.6%3.2%4.8%6.5%8.1%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Tract in Johnson County

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
0%6%12%18%24%30%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
1%18%34%50%66%82%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
4%12%21%29%38%47%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
3.3%7.0%10.6%14.2%17.8%21.5%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
0.7%4.0%7.4%10.7%14.0%17.4%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
1.0%4.7%8.2%11.8%15.4%19.0%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
1.0%3.7%6.3%8.9%11.5%14.1%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
0.4%1.8%3.2%4.5%5.9%7.3%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
0.1%2.0%3.9%5.7%7.6%9.5%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in Johnson County

Children Age Cohorts by Block Group#23

Percentage of population aged 0 to 17 (%):
0%8%15%23%31%39%

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
0%16%33%49%65%82%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
0%11%21%32%42%53%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
0%6%12%17%23%29%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
0.0%4.1%8.1%12.2%16.3%20.4%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
1%7%12%18%24%30%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
0.0%4.6%9.2%13.9%18.5%23.1%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
0.0%2.5%4.9%7.4%9.9%12.4%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0.0%2.2%4.5%6.7%8.9%11.2%
Road Data ©OpenStreetMap

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Age Cohorts by Place in Johnson County

There are 13 places that are fully or partially contained within Johnson County (12 fully and 1 partially). This section compares all 13 of those to each other, Johnson County, and other entities that contain or substantially overlap with Johnson County.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of Johnson County, selected places in Johnson County, and entities that contain Johnson County
0%10%20%30%Count#ShueyvilleSolonLone TreeNorth LibertyTiffinOxfordSwisherWest BranchWest North CentralIowaMidwestUnited States of AmericaUnited StatesUniversity HeightsUniv HtsCoralvilleHillsIowa City Metro AreaIowa CityJohnson CountyJohnsonFrytownIowa City32.105263%32.105263%32.1%183130.887870%30.887870%30.9%741230.026991%30.026991%30.0%445328.208902%28.208902%28.2%4,791427.944664%27.944664%27.9%707526.315789%26.315789%26.3%230626.004728%26.004728%26.0%220723.944208%23.944208%23.9%618823.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.709163%22.709163%22.7%285922.581930%22.581930%22.6%4,5341021.232877%21.232877%21.2%1551120.759683%20.759683%20.8%34,07134.1k20.137881%20.137881%20.1%28,59728.6k19.047619%19.047619%19.0%161215.598536%15.598536%15.6%11,29111.3k13
Count number of children
# rank of place out of 13 by %

Age Cohorts by County Subdivision in Johnson County

There are 22 county subdivisions in Johnson County. This section compares all 22 of those to each other, Johnson County, and other entities that contain or substantially overlap with Johnson County.

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of Johnson County, selected county subdivisions in Johnson County, and entities that contain Johnson County
0%10%20%30%Count#Hardin TownshipHardinMonroe TownshipMonroeJefferson TownshipJeffersonPenn TownshipUnion TownshipUnionCedar TownshipCedarSharon TownshipSharonWashington TownshipWashingtonFremont TownshipFremontBig Grove TownshipBig GrvWest North CentralIowaMidwestUnited States of AmericaUnited StatesLiberty TownshipLibertyMadison TownshipMadisonScott TownshipScottIowa City Metro AreaIowa CityJohnson CountyJohnsonClear Creek TownshipClear CrkWest Lucas TownshipW LucasNewport TownshipNewportIowa CityOxford TownshipOxfordGraham TownshipGrahamPleasant Valley TownshipPleasant VlyLincoln TownshipLincolnEast Lucas TownshipE Lucas39.716312%39.716312%39.7%224130.518234%30.518234%30.5%159229.963235%29.963235%30.0%1,304329.094891%29.094891%29.1%7,972428.909953%28.909953%28.9%183528.767123%28.767123%28.8%147628.596803%28.596803%28.6%483727.997365%27.997365%28.0%425827.395833%27.395833%27.4%526925.211759%25.211759%25.2%1,0121023.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.872340%22.872340%22.9%2581121.783473%21.783473%21.8%8331221.325167%21.325167%21.3%3831320.759683%20.759683%20.8%34,07134.1k20.137881%20.137881%20.1%28,59728.6k18.369015%18.369015%18.4%1,1241417.437026%17.437026%17.4%1,4261517.367206%17.367206%17.4%3761615.598536%15.598536%15.6%11,29111.3k1715.005139%15.005139%15.0%2921814.689266%14.689266%14.7%521914.634146%14.634146%14.6%242014.606742%14.606742%14.6%392111.469534%11.469534%11.5%6422
Count number of children
# rank of county subdivision out of 22 by %

Age Cohorts by County in the Iowa City Area

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

Children by County#50

Percentage of population aged 0 to 17 (%):
Scope: population of Johnson County, selected other counties in the Iowa City Area, and entities that contain Johnson County
0%5%10%15%20%Count#Washington CountyWashingtonWest North CentralIowaMidwestUnited States of AmericaUnited StatesIowa City Metro AreaIowa CityJohnson CountyJohnson24.752430%24.752430%24.8%5,474123.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M20.759683%20.759683%20.8%34,07134.1k20.137881%20.137881%20.1%28,59728.6k2
Count number of children
# rank of county out of 2 by %

Age Cohorts by County in Iowa

There are 99 counties in Iowa. This section compares Johnson County to the 50 most populous counties in Iowa and to those entities that contain or substantially overlap with Johnson County. The least populous of the compared counties has a population of 15,552.

Children by County#59

Percentage of population aged 0 to 17 (%):
Scope: population of Johnson County, selected other counties in Iowa, and entities that contain Johnson County
0%10%20%Count#Dallas CountyDallasSioux CountySiouxBuchanan CountyBuchananWoodbury CountyWoodburyMadison CountyMadisonCrawford CountyCrawfordMuscatine CountyMuscatineBuena Vista CountyBuena VistaPolk CountyPolkWarren CountyWarrenPlymouth CountyPlymouthMarshall CountyMarshallWashington CountyWashingtonBenton CountyBentonTama CountyTamaCarroll CountyCarrollMarion CountyMarionScott CountyScottDelaware CountyDelawareLinn CountyLinnWest North CentralPottawattamie CountyPottawattamieMahaska CountyMahaskaIowaIowa CountyIowaMidwestCedar CountyCedarUnited States of AmericaUnited StatesDubuque CountyDubuqueClinton CountyClintonDes Moines CountyDes MoinesClay CountyClayFloyd CountyFloydWapello CountyWapelloHenry CountyHenryBoone CountyBooneJackson CountyJacksonJasper CountyJasperHardin CountyHardinClayton CountyClaytonBremer CountyBremerJones CountyJonesLee CountyLeeBlack Hawk CountyBlack HawkWebster CountyWebsterFayette CountyFayettePage CountyPageCerro Gordo CountyCerro GordoIowa City Metro AreaIowa CityPoweshiek CountyPoweshiekJohnson CountyJohnsonJefferson CountyJeffersonDickinson CountyDickinsonWinneshiek CountyWinneshiekStory CountyStory28.497323%28.497323%28.5%22,24922.2k127.044279%27.044279%27.0%9,363226.679663%26.679663%26.7%5,611326.290200%26.290200%26.3%26,92826.9k425.994509%25.994509%26.0%4,071525.928734%25.928734%25.9%4,446625.406878%25.406878%25.4%10,91210.9k725.375397%25.375397%25.4%5,188825.291021%25.291021%25.3%116,126116k925.204484%25.204484%25.2%12,14112.1k1025.124139%25.124139%25.1%6,2741125.003069%25.003069%25.0%10,18510.2k1224.752430%24.752430%24.8%5,4741324.642302%24.642302%24.6%6,3381424.203639%24.203639%24.2%4,2171524.169302%24.169302%24.2%4,9681624.119649%24.119649%24.1%8,0071724.059118%24.059118%24.1%41,16941.2k1824.029808%24.029808%24.0%4,1921923.886168%23.886168%23.9%52,09052.1k2023.689691%23.689691%23.7%4,971,0164.97M23.681839%23.681839%23.7%22,07122.1k2123.588963%23.588963%23.6%5,2662223.418418%23.418418%23.4%727,514728k23.349259%23.349259%23.3%3,8122323.217458%23.217458%23.2%15,712,75815.7M23.171461%23.171461%23.2%4,2612423.108006%23.108006%23.1%73,612,43873.6M23.102149%23.102149%23.1%22,26122.3k2523.017594%23.017594%23.0%11,04211.0k2622.899736%22.899736%22.9%9,1862722.812234%22.812234%22.8%3,7592822.663084%22.663084%22.7%3,6272922.436298%22.436298%22.4%7,9073022.416128%22.416128%22.4%4,4703122.335391%22.335391%22.3%5,8993222.300169%22.300169%22.3%4,3553322.187117%22.187117%22.2%8,1463422.102286%22.102286%22.1%3,8293522.058077%22.058077%22.1%3,9123622.016786%22.016786%22.0%5,4303721.683512%21.683512%21.7%4,4413821.630843%21.630843%21.6%7,6083921.563608%21.563608%21.6%28,64128.6k4021.511471%21.511471%21.5%7,9704121.362366%21.362366%21.4%4,3564221.129115%21.129115%21.1%3,2864320.804563%20.804563%20.8%9,0094420.759683%20.759683%20.8%34,07134.1k20.191172%20.191172%20.2%3,7604520.137881%20.137881%20.1%28,59728.6k4619.516476%19.516476%19.5%3,4474719.400446%19.400446%19.4%3,3074818.774352%18.774352%18.8%3,9034917.082481%17.082481%17.1%16,20016.2k50
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 Johnson County to the 50 most populous counties in the United States and to those entities that contain or substantially overlap with Johnson 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 Johnson County, selected other counties in the United States, and entities that contain Johnson County
0%10%20%Count#Fresno CountyFresnoSalt Lake CountySalt LakeSan Bernardino CountySan BernardinoHarris CountyHarrisTarrant CountyTarrantDallas CountyDallasRiverside CountyRiversideBexar CountyBexarBronx CountyBronxMaricopa CountyMaricopaWake CountyWakeMecklenburg CountyMecklenburgMilwaukee CountyMilwaukeeSacramento CountySacramentoWayne CountyWayneFairfax CountyFairfaxClark CountyClarkWest North CentralFranklin CountyFranklinFairfield CountyFairfieldMontgomery CountyMontgomeryContra Costa CountyContra CostaIowaKings CountyKingsMidwestHillsborough 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 CountyOaklandPima CountyPimaHonolulu CountyHonoluluBroward CountyBrowardCuyahoga CountyCuyahogaAlameda CountyAlamedaKing CountyKingIowa City Metro AreaIowa CityMiami-Dade CountyMiami-DadeMiddlesex CountyMiddlesexQueens CountyQueensJohnson CountyJohnsonPalm 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%249,554250k1124.574361%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%493,981494k1723.689691%23.689691%23.7%4,971,0164.97M23.668593%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%260,665261k2123.418418%23.418418%23.4%727,514728k23.337305%23.337305%23.3%608,369608k2223.217458%23.217458%23.2%15,712,75815.7M23.197227%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%273,247273k3821.856045%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%434,553435k4420.759683%20.759683%20.8%34,07134.1k20.604500%20.604500%20.6%548,990549k4520.568254%20.568254%20.6%322,430322k4620.470812%20.470812%20.5%472,878473k4720.137881%20.137881%20.1%28,59728.6k19.641010%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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Principal City:
Iowa City
Cities:
Coralville, Hills, Iowa City, Lone Tree, North Liberty, Oxford, Shueyville, Solon, Swisher, Tiffin, University Heights, West Branch
Townships:
Big Grove, Cedar, Clear Creek, East Lucas, Fremont, Graham, Hardin, Jefferson, Liberty, Lincoln, Madison, Monroe, Newport, Oxford, Penn, Pleasant Valley, Scott, Sharon, Union, Washington, West Lucas
Unincorporated Places:
Frytown
ZIP Codes:
52203, 52228, 52235, 52240, 52241, 52242, 52245, 52246, 52247, 52253, 52317, 52322, 52325, 52327, 52333, 52338, 52340, 52356, 52358, 52404, 52755
Unified School Districts:
Clear Creek-Amana, College, Highland, Iowa City, Lisbon, Lone Tree, Mid-Prairie, Mount Vernon, Solon, West Branch, West Liberty, Williamsburg
Congressional District:
IA-2
State Senate Districts:
IA-37, IA-39, IA-43
State House Districts:
IA-73, IA-74, IA-77, IA-85, IA-86
Neighboring Counties:
Benton, Cedar, Iowa, Linn, Louisa, Muscatine, Washington
Nearby Counties:
Buchanan, Delaware, Des Moines, Henry, Jefferson, Jones, Keokuk, Mercer, Wapello