Age and Sex in Buchanan 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, Buchanan County, and other counties in Iowa
Buchanan County
Iowa
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-45792.753%2.75%4352.068%2.07%5832.772%2.77%9234.389%4.39%5212.477%2.48%4642.206%2.21%7383.509%3.51%4352.068%2.07%1,5787.503%7.50%1,5337.289%7.29%1,2826.096%6.10%1,1355.397%5.40%1,2696.034%6.03%1,3306.324%6.32%1,1465.449%5.45%7853.733%3.73%1260.599%0.60%1380.656%0.66%4201.997%2.00%8684.127%4.13%1,6017.613%7.61%1,7278.212%8.21%1,4156.728%6.73%
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 Buchanan County
Female Male
Iowa
Buchanan County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.209743%-0.043454%-0.192490%-0.053856%-0.253198%0.25%0.209743%0.192490%0.209743%0.21%3,50516.666%16.7%-0.624221%-0.638182%-0.624221%0.62%0.624221%0.026057%0.638182%0.001353%0.650278%0.65%6,70131.862%31.9%-0.596738%-0.003170%-0.619125%-0.599908%0.60%0.596738%0.619125%0.025145%0.596738%0.60%4,53021.540%21.5%-0.401788%-0.009510%-0.735381%-0.411298%0.41%0.401788%0.735381%0.054111%0.401788%0.40%6843.252%3.25%-0.729611%-0.634612%-0.729611%0.73%0.729611%0.022982%0.634612%0.031800%0.752593%0.75%5,61126.680%26.7%
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 Buchanan County
Female Male
Iowa
Buchanan County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.064191%-0.043686%-0.051411%-0.053545%-0.107876%0.11%0.064191%0.051411%0.064191%0.06%5792.753%2.75%-0.151205%-0.111264%-0.174468%-0.075066%-0.262470%0.26%0.151205%0.174468%0.151205%0.15%4352.068%2.07%-0.271979%-0.010461%-0.248144%-0.065989%-0.282440%0.28%0.271979%0.248144%0.271979%0.27%5832.772%2.77%-0.405116%-0.334521%-0.038389%-0.405116%0.41%0.405116%0.067519%0.334521%0.472636%0.47%9234.389%4.39%-0.356616%-0.112532%-0.424367%-0.036879%-0.469149%0.47%0.356616%0.424367%0.356616%0.36%5212.477%2.48%-0.487376%-0.128382%-0.524144%-0.037115%-0.615758%0.62%0.487376%0.524144%0.487376%0.49%4642.206%2.21%-0.439034%-0.595229%-0.000536%-0.439034%0.44%0.439034%0.291633%0.595229%0.730667%0.73%7383.509%3.51%-0.380391%-0.273406%-0.663219%-0.010462%-0.653797%0.65%0.380391%0.663219%0.380391%0.38%4352.068%2.07%-0.713233%-0.074176%-0.675983%-0.012541%-0.787409%0.79%0.713233%0.675983%0.713233%0.71%1,5787.503%7.50%-0.727498%-0.690906%-0.006245%-0.727498%0.73%0.727498%0.002853%0.690906%0.730350%0.73%1,5337.289%7.29%-0.583900%-0.051353%-0.607007%-0.635253%0.64%0.583900%0.607007%0.012683%0.583900%0.58%1,2826.096%6.10%-0.446008%-0.571295%-0.446008%0.45%0.446008%0.187342%0.571295%0.017376%0.633351%0.63%1,1355.397%5.40%-0.541106%-0.124578%-0.587487%-0.665684%0.67%0.541106%0.587487%0.012483%0.541106%0.54%1,2696.034%6.03%-0.605772%-0.628104%-0.605772%0.61%0.605772%0.053255%0.628104%0.026170%0.659027%0.66%1,3306.324%6.32%-0.528743%-0.601386%-0.528743%0.53%0.528743%0.032333%0.601386%0.033864%0.561077%0.56%1,1465.449%5.45%-0.599116%-0.686455%-0.599116%0.60%0.599116%0.045964%0.686455%0.030011%0.645079%0.65%7853.733%3.73%-0.242499%-0.114117%-0.733441%-0.356616%0.36%0.242499%0.733441%0.046900%0.242499%0.24%1260.599%0.60%-0.313822%-0.028529%-0.770169%-0.342352%0.34%0.313822%0.770169%0.056074%0.313822%0.31%1380.656%0.66%-0.473111%-0.718956%-0.473111%0.47%0.473111%0.052304%0.718956%0.056734%0.525415%0.53%4201.997%2.00%-0.637155%-0.640338%-0.637155%0.64%0.637155%0.101438%0.640338%0.030076%0.738592%0.74%8684.127%4.13%-0.720841%-0.080833%-0.639003%-0.801674%0.80%0.720841%0.639003%0.033033%0.720841%0.72%1,6017.613%7.61%-0.772193%-0.643465%-0.772193%0.77%0.772193%0.097951%0.643465%0.031842%0.870144%0.87%1,7278.212%8.21%-0.670439%-0.617932%-0.670439%0.67%0.670439%0.004755%0.617932%0.031559%0.675194%0.68%1,4156.728%6.73%
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 Buchanan County
More Females More Males
Iowa
Buchanan County
100%50%0%50%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-68.055556%-104.151992%-68.055556%68.1%0.5950.6062.694%62.7%37.306%37.3%-73.584906%-43.025830%-73.584906%73.6%0.5760.5863.448%63.4%36.552%36.6%-3.846154%-26.592985%-3.846154%3.8%0.9630.9650.943%50.9%49.057%49.1%-11.475915%16.666667%16.666667%16.7%1.1671.1746.154%46.2%53.846%53.8%-31.555556%-8.690265%-31.555556%31.6%0.7600.7656.814%56.8%43.186%43.2%-26.341463%-7.081005%-26.341463%26.3%0.7920.7955.819%55.8%44.181%44.2%-0.090132%66.425993%66.425993%66.4%1.6641.6637.534%37.5%62.466%62.5%-71.875000%-1.577402%-71.875000%71.9%0.5820.5863.218%63.2%36.782%36.8%-10.400000%-1.855238%-10.400000%10.4%0.9060.9152.471%52.5%47.529%47.5%-0.903856%0.392157%0.392157%0.4%1.0041.0049.902%49.9%50.098%50.1%-8.794788%-8.794788%8.8%2.089388%0.9190.9252.106%52.1%47.894%47.9%42.004264%3.041504%42.004264%42.0%1.4201.4241.322%41.3%58.678%58.7%-23.022847%-23.022847%23.0%2.124838%0.8130.8155.162%55.2%44.838%44.8%8.791209%4.166539%8.791209%8.8%1.0881.0947.895%47.9%52.105%52.1%6.115108%5.630908%6.115108%6.1%1.0611.0648.517%48.5%51.483%51.5%7.671958%4.371952%7.671958%7.7%1.0771.0848.153%48.2%51.847%51.8%-47.058824%-47.058824%47.1%6.394558%0.6800.6859.524%59.5%40.476%40.5%-9.090909%-9.090909%9.1%7.280782%0.9170.9252.174%52.2%47.826%47.8%11.055276%7.891202%11.055276%11.1%1.1111.1147.381%47.4%52.619%52.6%15.920398%4.696873%15.920398%15.9%1.1591.1646.313%46.3%53.687%53.7%-11.213720%-11.213720%11.2%5.169461%0.8990.9052.655%52.7%47.345%47.3%12.684729%4.948524%12.684729%12.7%1.1271.1347.018%47.0%52.982%53.0%0.709220%5.107154%0.709220%0.7%1.0071.0149.823%49.8%50.177%50.2%
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 Buchanan County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
8%15%22%28%35%42%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
0.0%1.8%3.6%5.4%7.2%9.1%

20s Age Cohorts by County Subdivision#7

Percentage of population aged 22 to 29 (%):
3.6%8.2%12.8%17.3%21.9%26.5%

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
0.0%4.1%8.1%12.2%16.2%20.3%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
3.6%6.1%8.7%11.2%13.7%16.3%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
11.2%15.0%18.8%22.6%26.4%30.2%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
2.3%6.4%10.6%14.7%18.8%23.0%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
3.5%7.5%11.4%15.3%19.2%23.2%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
0.0%3.1%6.2%9.3%12.3%15.5%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Tract in Buchanan County

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
22.2%24.1%25.9%27.7%29.5%31.4%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
2.1%2.6%3.1%3.6%4.1%4.7%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
5.5%6.7%7.9%9.0%10.2%11.4%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
9.9%10.8%11.7%12.6%13.5%14.4%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
9.5%10.3%11.0%11.8%12.5%13.3%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
11.5%13.0%14.3%15.7%17.1%18.6%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
7.9%8.8%9.7%10.5%11.4%12.2%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
5.2%6.0%6.8%7.6%8.4%9.2%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
2.2%3.5%4.7%6.0%7.2%8.5%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in Buchanan County

Children Age Cohorts by Block Group#23

Percentage of population aged 0 to 17 (%):
12%18%24%30%36%43%

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
0.0%1.5%3.0%4.5%6.0%7.6%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
1%7%12%18%23%29%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
3.7%6.8%9.8%12.9%15.9%19.0%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
4.7%7.9%11.1%14.3%17.5%20.7%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
4.4%8.1%11.7%15.4%19.0%22.7%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
5.4%8.0%10.5%13.0%15.5%18.1%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
1.1%3.4%5.6%7.8%10.0%12.3%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0.9%3.9%6.8%9.7%12.7%15.6%
Road Data ©OpenStreetMap

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Age Cohorts by Place in Buchanan County

There are 11 places that are fully or partially contained within Buchanan County (8 fully and 3 partially). This section compares all 11 of those to each other, Buchanan County, and other entities that contain or substantially overlap with Buchanan County.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of Buchanan County, selected places in Buchanan County, and entities that contain Buchanan County
0%10%20%30%Count#AuroraHazletonStanleyWinthropLamontJesupBuchanan CountyBuchananBrandonWest North CentralIowaMidwestUnited States of AmericaUnited StatesIndependenceFairbankRowleyQuasqueton33.760684%33.760684%33.8%79130.856423%30.856423%30.9%245229.824561%29.824561%29.8%34329.180328%29.180328%29.2%267427.674419%27.674419%27.7%119527.625489%27.625489%27.6%776626.679663%26.679663%26.7%5,61124.242424%24.242424%24.2%80723.689691%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%73,612,43873.6M22.731057%22.731057%22.7%1,365822.260274%22.260274%22.3%260920.701754%20.701754%20.7%591015.320911%15.320911%15.3%7411
Count number of children
# rank of place out of 11 by %

Age Cohorts by County Subdivision in Buchanan County

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

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of Buchanan County, selected county subdivisions in Buchanan County, and entities that contain Buchanan County
0%10%20%30%40%Count#Buffalo TownshipBuffaloWestburg TownshipWestburgFairbank TownshipFairbankMadison TownshipMadisonJefferson TownshipJeffersonPerry TownshipPerryByron TownshipByronHazleton TownshipHazletonBuchanan CountyBuchananSumner TownshipSumnerMiddlefield TownshipMiddlefieldCono TownshipHomer TownshipHomerWest North CentralIowaMidwestUnited States of AmericaUnited StatesWashington TownshipWashingtonLiberty TownshipLibertyNewton TownshipNewtonFremont TownshipFremont41.719078%41.719078%41.7%199136.560694%36.560694%36.6%253233.089580%33.089580%33.1%543331.200000%31.200000%31.2%234430.780142%30.780142%30.8%217528.968031%28.968031%29.0%1,033628.241206%28.241206%28.2%281727.928571%27.928571%27.9%391826.679663%26.679663%26.7%5,61126.520611%26.520611%26.5%920926.453488%26.453488%26.5%911025.773196%25.773196%25.8%1001124.238026%24.238026%24.2%1671223.689691%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%73,612,43873.6M21.985651%21.985651%22.0%9501316.870877%16.870877%16.9%1791411.111111%11.111111%11.1%36158.133971%8.133971%8.1%1716
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 Buchanan County to the 50 most populous counties in Iowa and to those entities that contain or substantially overlap with Buchanan 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 Buchanan County, selected other counties in Iowa, and entities that contain Buchanan 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 Buchanan County to the 50 most populous counties in the United States and to those entities that contain or substantially overlap with Buchanan 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 Buchanan County, selected other counties in the United States, and entities that contain Buchanan County
0%10%20%Count#Fresno CountyFresnoSalt Lake CountySalt LakeSan Bernardino CountySan BernardinoHarris CountyHarrisTarrant CountyTarrantDallas CountyDallasBuchanan CountyBuchananRiverside 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 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%676,745677k626.679663%26.679663%26.7%5,61126.401700%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%434,553435k4420.604500%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

Cities:
Aurora, Brandon, Fairbank, Hazleton, Independence, Jesup, Lamont, Quasqueton, Rowley, Stanley, Winthrop
Townships:
Buffalo, Byron, Cono, Fairbank, Fremont, Hazleton, Homer, Jefferson, Liberty, Madison, Middlefield, Newton, Perry, Sumner, Washington, Westburg
ZIP Codes:
50607, 50629, 50641, 50644, 50648, 50650, 50654, 50662, 50671, 50682, 52210, 52218, 52326, 52329, 52352
Unified School Districts:
East Buchanan, Independence, Jesup, North Linn, Oelwein, Starmont, Union, Vinton-Shellsburg, Wapsie Valley, West Delaware County
Congressional District:
IA-1
State Senate Districts:
IA-32, IA-48
State House Districts:
IA-64, IA-95
Neighboring Counties:
Benton, Black Hawk, Bremer, Clayton, Delaware, Fayette, Linn
Nearby Counties:
Allamakee, Cedar, Chickasaw, Iowa, Johnson, Jones, Tama, Winneshiek