Age and Sex in Iowa 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, Iowa County, and other counties in Iowa
Iowa County
Iowa
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-44312.640%2.64%4162.548%2.55%6944.251%4.25%6764.141%4.14%4462.732%2.73%2721.666%1.67%5893.608%3.61%5353.277%3.28%1,2217.479%7.48%1,3318.153%8.15%1,0676.536%6.54%8595.262%5.26%1,0426.382%6.38%9896.058%6.06%7674.698%4.70%4672.860%2.86%1260.772%0.77%2141.311%1.31%3722.279%2.28%7204.410%4.41%9285.684%5.68%1,1927.301%7.30%9725.954%5.95%
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 Iowa County
Female Male
Iowa
Iowa County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.214552%-0.070270%-0.192490%-0.053856%-0.284822%0.28%0.214552%0.192490%0.214552%0.21%2,93517.977%18.0%-0.664952%-0.638182%-0.664952%0.66%0.664952%0.042631%0.638182%0.001353%0.707583%0.71%5,60234.313%34.3%-0.552289%-0.619125%-0.552289%0.55%0.552289%0.006465%0.619125%0.025145%0.558754%0.56%3,26519.999%20.0%-0.499204%-0.735381%-0.499204%0.50%0.499204%0.091878%0.735381%0.054111%0.591082%0.59%7124.361%4.36%-0.642465%-0.634612%-0.642465%0.64%0.642465%0.012250%0.634612%0.031800%0.654716%0.65%3,81223.349%23.3%
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 Iowa County
Female Male
Iowa
Iowa County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.052830%-0.059338%-0.051411%-0.053545%-0.112168%0.11%0.052830%0.051411%0.052830%0.05%4312.640%2.64%-0.198456%-0.112704%-0.174468%-0.075066%-0.311160%0.31%0.198456%0.174468%0.198456%0.20%4162.548%2.55%-0.344236%-0.161705%-0.248144%-0.065989%-0.505941%0.51%0.344236%0.248144%0.344236%0.34%6944.251%4.25%-0.379762%-0.068602%-0.334521%-0.038389%-0.448365%0.45%0.379762%0.334521%0.379762%0.38%6764.141%4.14%-0.373637%-0.163339%-0.424367%-0.036879%-0.536976%0.54%0.373637%0.424367%0.373637%0.37%4462.732%2.73%-0.260321%-0.524144%-0.037115%-0.260321%0.26%0.260321%0.312385%0.524144%0.572706%0.57%2721.666%1.67%-0.592103%-0.595229%-0.000536%-0.592103%0.59%0.592103%0.018376%0.595229%0.610478%0.61%5893.608%3.61%-0.787088%-0.064315%-0.663219%-0.010462%-0.851403%0.85%0.787088%0.663219%0.787088%0.79%5353.277%3.28%-0.695823%-0.675983%-0.012541%-0.695823%0.70%0.695823%0.104128%0.675983%0.799951%0.80%1,2217.479%7.48%-0.786476%-0.690906%-0.006245%-0.786476%0.79%0.786476%0.057577%0.690906%0.844052%0.84%1,3318.153%8.15%-0.645596%-0.607007%-0.645596%0.65%0.645596%0.015926%0.607007%0.012683%0.661521%0.66%1,0676.536%6.54%-0.501041%-0.571295%-0.501041%0.50%0.501041%0.050227%0.571295%0.017376%0.551268%0.55%8595.262%5.26%-0.633346%-0.009800%-0.587487%-0.643146%0.64%0.633346%0.587487%0.012483%0.633346%0.63%1,0426.382%6.38%-0.591694%-0.628104%-0.591694%0.59%0.591694%0.028176%0.628104%0.026170%0.619870%0.62%9896.058%6.06%-0.453265%-0.601386%-0.453265%0.45%0.453265%0.033076%0.601386%0.033864%0.486341%0.49%7674.698%4.70%-0.453265%-0.046960%-0.686455%-0.500225%0.50%0.453265%0.686455%0.030011%0.453265%0.45%4672.860%2.86%-0.147005%-0.733441%-0.147005%0.15%0.147005%0.477766%0.733441%0.046900%0.624770%0.62%1260.772%0.77%-0.459390%-0.392013%-0.770169%-0.851403%0.85%0.459390%0.770169%0.056074%0.459390%0.46%2141.311%1.31%-0.499204%-0.718956%-0.499204%0.50%0.499204%0.140880%0.718956%0.056734%0.640083%0.64%3722.279%2.28%-0.688064%-0.093920%-0.640338%-0.781984%0.78%0.688064%0.640338%0.030076%0.688064%0.69%7204.410%4.41%-0.486341%-0.164155%-0.639003%-0.650496%0.65%0.486341%0.639003%0.033033%0.486341%0.49%9285.684%5.68%-0.623545%-0.643465%-0.623545%0.62%0.623545%0.213157%0.643465%0.031842%0.836702%0.84%1,1927.301%7.30%-0.569644%-0.617932%-0.569644%0.57%0.569644%0.051452%0.617932%0.031559%0.621095%0.62%9725.954%5.95%
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 Iowa County
More Females More Males
Iowa
Iowa County
100%0%100%200%300%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-112.318841%-104.151992%-112.318841%112.3%0.4710.4767.981%68.0%32.019%32.0%-56.790123%-43.025830%-56.790123%56.8%0.6380.6461.058%61.1%38.942%38.9%-46.975089%-26.592985%-46.975089%47.0%0.6800.6859.510%59.5%40.490%40.5%-18.064516%-11.475915%-18.064516%18.1%0.8470.8554.142%54.1%45.858%45.9%-43.715847%-8.690265%-43.715847%43.7%0.6960.7058.969%59.0%41.031%41.0%-7.081005%120.000000%120.000000%120.0%2.2002.2031.250%31.3%68.750%68.8%-0.090132%3.103448%3.103448%3.1%1.0311.0349.236%49.2%50.764%50.8%-8.171206%-1.577402%-8.171206%8.2%0.9240.9251.963%52.0%48.037%48.0%-1.855238%14.964789%14.964789%15.0%1.1501.1546.519%46.5%53.481%53.5%-0.903856%7.320872%7.320872%7.3%1.0731.0748.234%48.2%51.766%51.8%2.466793%2.089388%2.466793%2.5%1.0251.0249.391%49.4%50.609%50.6%10.024450%3.041504%10.024450%10.0%1.1001.1047.614%47.6%52.386%52.4%-1.547389%-1.547389%1.5%2.124838%0.9850.9850.384%50.4%49.616%49.6%4.761905%4.166539%4.761905%4.8%1.0481.0548.837%48.8%51.163%51.2%7.297297%5.630908%7.297297%7.3%1.0731.0748.240%48.2%51.760%51.8%-10.360360%-10.360360%10.4%4.371952%0.9060.9152.463%52.5%47.537%47.5%325.000000%6.394558%325.000000%325.0%4.2504.2519.048%19.0%80.952%81.0%-85.333333%-85.333333%85.3%7.280782%0.5400.5464.953%65.0%35.047%35.0%28.220859%7.891202%28.220859%28.2%1.2821.2843.817%43.8%56.183%56.2%-13.649852%-13.649852%13.6%4.696873%0.8800.8853.194%53.2%46.806%46.8%-33.753149%-33.753149%33.8%5.169461%0.7480.7557.220%57.2%42.780%42.8%34.184676%4.948524%34.184676%34.2%1.3421.3442.701%42.7%57.299%57.3%9.032258%5.107154%9.032258%9.0%1.0901.0947.840%47.8%52.160%52.2%
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

Map of Age Cohorts by County Subdivision in Iowa County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
6.0%10.8%15.5%20.2%24.9%29.7%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
0.0%3.0%6.1%9.1%12.1%15.2%

20s Age Cohorts by County Subdivision#7

Percentage of population aged 22 to 29 (%):
0.8%4.0%7.1%10.2%13.3%16.4%

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
3.7%7.0%10.2%13.4%16.6%19.9%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
2.5%6.6%10.6%14.6%18.6%22.6%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
8%16%22%29%36%43%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
5.0%9.5%14.0%18.6%23.1%27.7%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
3.7%8.1%12.4%16.8%21.1%25.5%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
0.0%1.7%3.5%5.2%7.0%8.8%
Road Data ©OpenStreetMap

Loading...

Failed to load :-(

Map of Age Cohorts by Tract in Iowa County

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
20.7%22.0%23.3%24.6%25.9%27.2%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
2.8%3.7%4.6%5.4%6.3%7.3%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
7.08%7.41%7.74%8.06%8.39%8.72%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
11.40%11.70%12.01%12.31%12.61%12.92%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
10.54%11.03%11.52%12.00%12.49%12.97%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
14.47%14.97%15.46%15.95%16.45%16.94%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
9.4%10.7%12.0%13.3%14.5%15.8%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
7.1%7.8%8.6%9.3%10.1%10.9%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
4.38%4.82%5.25%5.68%6.11%6.54%
Road Data ©OpenStreetMap

Loading...

Failed to load :-(

Map of Age Cohorts by Block Group in Iowa County

Children Age Cohorts by Block Group#23

Percentage of population aged 0 to 17 (%):
13.7%17.2%20.6%24.0%27.4%30.8%

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
0.0%2.1%4.2%6.3%8.4%10.5%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
3.8%5.9%7.9%10.0%12.0%14.1%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
3.4%6.7%9.9%13.2%16.4%19.7%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
3.7%6.9%10.1%13.2%16.4%19.5%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
9.6%14.0%18.3%22.6%26.9%31.2%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
4.8%7.5%10.2%12.9%15.6%18.4%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
2.2%5.3%8.3%11.3%14.3%17.4%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0.0%2.0%4.0%6.0%8.1%10.1%
Road Data ©OpenStreetMap

Loading...

Failed to load :-(

Age Cohorts by Place in Iowa County

There are 15 places that are fully or partially contained within Iowa County (13 fully and 2 partially). This section compares all 15 of those to each other, Iowa County, and other entities that contain or substantially overlap with Iowa County.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of Iowa County, selected places in Iowa County, and entities that contain Iowa County
0%10%20%30%40%Count#HomesteadHigh AmanaNorth EnglishVictorWilliamsburgMarengoWest North CentralIowaIowa CountyIowaMidwestUnited States of AmericaUnited StatesLadoraAmanaMiddle AmanaConroyMillersburgWest AmanaParnellSouth AmanaEast Amana46.067416%46.067416%46.1%82133.653846%33.653846%33.7%35232.142857%32.142857%32.1%369329.239766%29.239766%29.2%300426.304071%26.304071%26.3%827525.042706%25.042706%25.0%733623.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.349259%23.349259%23.3%3,81223.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M20.779221%20.779221%20.8%64718.528610%18.528610%18.5%68816.312057%16.312057%16.3%69916.000000%16.000000%16.0%601012.987013%12.987013%13.0%201111.792453%11.792453%11.8%251210.194175%10.194175%10.2%21130.000000%0.000000%0.0%0140.000000%0.000000%0.0%015
Count number of children
# rank of place out of 15 by %

Age Cohorts by County Subdivision in Iowa County

There are 16 county subdivisions in Iowa County. This section compares all 16 of those to each other, Iowa County, and other entities that contain or substantially overlap with Iowa County.

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of Iowa County, selected county subdivisions in Iowa County, and entities that contain Iowa County
0%10%20%Count#English TownshipEnglishIowa TownshipHartford TownshipHartfordTroy TownshipYork TownshipWashington TownshipWashingtonLincoln TownshipLincolnWest North CentralIowaIowa CountyIowaMidwestUnited States of AmericaUnited StatesMarengo TownshipMarengoSumner TownshipSumnerLenox TownshipLenoxPilot TownshipPilotGreene TownshipGrnHilton TownshipHiltonHoney Creek TownshipHoney CrkDayton TownshipDaytonFillmore TownshipFillmore29.647631%29.647631%29.6%488128.941441%28.941441%28.9%257227.920792%27.920792%27.9%423326.140603%26.140603%26.1%911425.333333%25.333333%25.3%152524.937656%24.937656%24.9%300624.736842%24.736842%24.7%47723.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.349259%23.349259%23.3%3,81223.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.952756%22.952756%23.0%583821.428571%21.428571%21.4%60919.846797%19.846797%19.8%2851018.965517%18.965517%19.0%441118.085106%18.085106%18.1%851213.996890%13.996890%14.0%901310.410095%10.410095%10.4%33146.276151%6.276151%6.3%15156.074766%6.074766%6.1%3916
Count number of children
# rank of county subdivision out of 16 by %

Age Cohorts by County in Iowa

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

Children by County#50

Percentage of population aged 0 to 17 (%):
Scope: population of Iowa County, selected other counties in Iowa, and entities that contain Iowa 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 GordoPoweshiek 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%9,0094420.191172%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 Iowa County to the 50 most populous counties in the United States and to those entities that contain or substantially overlap with Iowa County. The least populous of the compared counties has a population of 941,618.

Children by County#59

Percentage of population aged 0 to 17 (%):
Scope: population of Iowa County, selected other counties in the United States, and entities that contain Iowa 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 CostaIowaIowa CountyIowaKings 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 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%249,554250k1124.574361%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%727,514728k23.349259%23.349259%23.3%3,81223.337305%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%434,553435k4420.604500%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.

More Topics to Explore

Demographics

Income

Education

More Maps to Explore

Cities:
Ladora, Marengo, Millersburg, North English, Parnell, Victor, Williamsburg
Townships:
Dayton, English, Fillmore, Greene, Hartford, Hilton, Honey Creek, Iowa, Lenox, Lincoln, Marengo, Pilot, Sumner, Troy, Washington, York
Unincorporated Places:
Amana, Conroy, East Amana, High Amana, Homestead, Middle Amana, South Amana, West Amana
ZIP Codes:
50136, 52203, 52208, 52220, 52221, 52222, 52236, 52251, 52301, 52307, 52308, 52316, 52318, 52325, 52334, 52347, 52355, 52356, 52361
Unified School Districts:
Belle Plaine, Benton, Clear Creek-Amana, English Valleys, H-L-V, Iowa Valley, Mid-Prairie, Tri-County, Williamsburg
Congressional District:
IA-1
State Senate District:
IA-38
State House Districts:
IA-75, IA-76
Neighboring Counties:
Benton, Johnson, Keokuk, Linn, Poweshiek, Tama, Washington
Nearby Counties:
Black Hawk, Buchanan, Henry, Jefferson, Louisa, Mahaska, Monroe, Wapello