Age and Sex in the Willow Township, Crawford County, Iowa (Township)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the county subdivisions in Crawford County.
Scope: population of Crawford County, the Willow Township, and other county subdivisions in Crawford County
Willow Township
0%1%2%3%4%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-400.000%0%00.000%0%115.116%5.12%00.000%0%00.000%0%52.326%2.33%52.326%2.33%41.860%1.86%2310.698%10.7%219.767%9.77%136.047%6.05%2913.488%13.5%156.977%6.98%00.000%0%62.791%2.79%00.000%0%00.000%0%104.651%4.65%83.721%3.72%146.512%6.51%2310.698%10.7%2310.698%10.7%52.326%2.33%
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 Crawford County and the Willow Township
Female Male
Crawford County
Willow Township
Shaded bar tips show excess over facing bar.
1%0%1%Count%Senior2Older Adult3Younger Adult4College5Children6-0.077519%-0.205089%-0.049571%-0.077519%0.1%0.077519%0.051680%0.205089%0.129199%0.1%167.442%7.44%-0.874419%-0.018605%-0.570362%-0.893023%0.9%0.874419%0.570362%0.079781%0.874419%0.9%9544.186%44.2%-0.180879%-0.180879%-0.550793%-0.361757%0.4%0.180879%0.550793%0.096875%0.180879%0.2%219.767%9.77%-0.581395%-0.642970%-0.072899%-0.581395%0.6%0.581395%0.930233%0.642970%1.511628%1.5%188.372%8.37%-0.749354%-0.718947%-0.749354%0.7%0.749354%0.180879%0.718947%0.002592%0.930233%0.9%6530.233%30.2%
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 Crawford County and the Willow Township
Female Male
Crawford County
Willow Township
Shaded bar tips show excess over facing bar.
4%2%0%2%4%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%-0.069619%-0.020412%0.000000%0.0%0.000000%0.000000%0.069619%0.000000%0.0%00.000%0%-0.000000%-0.164460%-0.155129%0.000000%0.0%0.000000%0.000000%0.164460%0.000000%0.0%00.000%0%-0.465116%-0.093023%-0.230944%-0.124803%-0.558140%0.6%0.465116%0.230944%0.465116%0.5%115.116%5.12%-0.000000%-0.325421%0.000000%0.0%0.000000%0.000000%0.325421%0.074649%0.000000%0.0%00.000%0%-0.000000%-0.367411%-0.143854%0.000000%0.0%0.000000%0.000000%0.367411%0.000000%0.0%00.000%0%-0.000000%-0.594856%0.000000%0.0%0.000000%1.162791%0.594856%0.000000%1.162791%1.2%52.326%2.33%-0.000000%-0.775194%-0.530705%-0.775194%0.8%0.000000%0.530705%0.038879%0.000000%0.0%52.326%2.33%-0.000000%-0.930233%-0.411151%-0.930233%0.9%0.000000%0.411151%0.148714%0.000000%0.0%41.860%1.86%-0.000000%-0.730157%0.000000%0.0%0.000000%2.139535%0.730157%0.060652%2.139535%2.1%2310.698%10.7%-0.000000%-1.953488%-0.674170%-1.953488%2.0%0.000000%0.674170%0.050155%0.000000%0.0%219.767%9.77%-0.372093%-0.640345%-0.372093%0.4%0.372093%0.465116%0.640345%0.145798%0.837209%0.8%136.047%6.05%-1.302326%-0.324255%-1.302326%1.3%1.302326%0.093023%0.324255%0.059486%1.395349%1.4%2913.488%13.5%-0.651163%-0.093023%-0.565697%-0.136467%-0.744186%0.7%0.651163%0.565697%0.651163%0.7%156.977%6.98%-0.000000%-0.491048%0.000000%0.0%0.000000%0.000000%0.491048%0.172625%0.000000%0.0%00.000%0%-0.000000%-0.558140%-0.438561%-0.558140%0.6%0.000000%0.438561%0.149297%0.000000%0.0%62.791%2.79%-0.000000%-0.585136%0.000000%0.0%0.000000%0.000000%0.585136%0.272156%0.000000%0.0%00.000%0%-0.000000%-0.606520%0.000000%0.0%0.000000%0.000000%0.606520%0.373243%0.000000%0.0%00.000%0%-0.000000%-0.373243%-0.274100%0.000000%0.0%0.000000%4.651163%0.373243%4.651163%4.7%104.651%4.65%-0.697674%-0.465116%-0.609436%-0.195369%-1.162791%1.2%0.697674%0.609436%0.697674%0.7%83.721%3.72%-0.930233%-0.662895%-0.930233%0.9%0.930233%0.310078%0.662895%0.085535%1.240310%1.2%146.512%6.51%-0.000000%-0.606520%0.000000%0.0%0.000000%2.139535%0.606520%0.114306%2.139535%2.1%2310.698%10.7%-0.000000%-2.139535%-0.748819%-2.139535%2.1%0.000000%0.748819%0.000000%0.000000%0.0%2310.698%10.7%-0.000000%-0.678836%-0.156296%0.000000%0.0%0.000000%0.465116%0.678836%0.465116%0.5%52.326%2.33%
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 Crawford County and the Willow Township
More Females More Males
Crawford County
Willow Township
1,000%500%0%M:FFM75-7962-6460-6150-5445-4940-4435-3925-2918-1915-175-9-20.000000%-54.040404%-20.000000%20.0%0.8330.8354.545%54.5%45.455%45.5%-1,000.000000%-1,000.000000%> 1000%7.326007%0.0000100.000%100%0.000%0%-1,000.000000%-1,000.000000%> 1000%36.170213%0.0000100.000%100%0.000%0%-1,000.000000%-1,000.000000%> 1000%7.439446%0.0000100.000%100%0.000%0%125.000000%22.768670%125.000000%125.0%2.2502.2530.769%30.8%69.231%69.2%7.142857%18.345324%7.142857%7.1%1.0711.0748.276%48.3%51.724%51.7%-14.285714%-24.123711%-14.285714%14.3%0.8750.8853.333%53.3%46.667%46.7%-1,000.000000%-1,000.000000%> 1000%34.042553%0.0000100.000%100%0.000%0%-66.666667%-32.057416%-66.666667%66.7%0.6000.6062.500%62.5%37.500%37.5%33.333333%12.903226%33.333333%33.3%1.3331.3342.857%42.9%57.143%57.1%-1,000.000000%0.000000%-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 the Willow Township

Children Age Cohorts by Block#5

Percentage of population aged 0 to 17 (%):
0%12%23%35%47%59%

College Age Cohorts by Block#6

Percentage of population aged 18 to 21 (%):
0%10%20%30%40%50%

20s Age Cohorts by Block#7

Percentage of population aged 22 to 29 (%):
0%10%20%30%40%50%

30s Age Cohorts by Block#8

Percentage of population aged 30 to 39 (%):
0%10%20%30%40%50%

40s Age Cohorts by Block#9

Percentage of population aged 40 to 49 (%):
0%20%40%60%80%100%

50s Age Cohorts by Block#10

Percentage of population aged 50 to 59 (%):
0%20%40%60%80%100%

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%20%40%60%80%100%

80+ Age Cohorts by Block#13

Percentage of population aged 80 and older (%):
0%7%13%20%27%34%
Road Data ©OpenStreetMap

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Age Cohorts by County Subdivision in Iowa

There are 1,662 county subdivisions in Iowa. This section compares the Willow Township to the 50 most populous county subdivisions in Iowa and to those entities that contain or substantially overlap with the Willow Township. The least populous of the compared county subdivisions has a population of 9,112.

Children by County Subdivision#14

Percentage of population aged 0 to 17 (%):
Scope: population of the Willow Township, selected other county subdivisions in Iowa, and entities that contain the Willow Township
0%10%20%30%Count#Jefferson TownshipJeffersonWalnut TownshipWalnutWillow TownshipWillowPenn TownshipCrocker TownshipCrockerTaylor TownshipTaylorClay TownshipStorm LakeLee TownshipBoone TownshipBooneCrawford CountyCrawfordWebster TownshipWebsterSioux CityMarion TownshipMarionBloomfield TownshipBloomfieldBloomington TownshipBloomingtonPleasant Valley TownshipPleasant VlyLewis TownshipLewisAmerica TownshipAmericaIndianolaLake Prairie TownshipLk PrairieKeokukCarrollBurlingtonWaterlooWest North CentralDavenportSpencerKane TownshipIowaKnoxville TownshipKnoxvilleMidwestUnited States of AmericaUnited StatesCedar RapidsFranklin TownshipFranklinDes Moines TownshipDes MoinesFour Mile TownshipFour MileCenter TownshipCtrNewton TownshipNewtonOskaloosa070300Tract 070300Walnut TownshipWalnutTimber Creek TownshipTimber CrkMonroe TownshipMonroeClintonDes Moines TownshipDes MoinesMason CityFort DodgeMadison TownshipMadisonDubuque070300-2B.G. 070300-2WaverlyGrinnellFairfieldCedar FallsIowa CityDecorah TownshipDecorahWashington TownshipWashington33.785694%33.785694%33.8%3,585132.167912%32.167912%32.2%8,483230.232558%30.232558%30.2%6529.094891%29.094891%29.1%7,972328.859738%28.859738%28.9%15,44415.4k428.192913%28.192913%28.2%5,267527.901677%27.901677%27.9%5,142627.405275%27.405275%27.4%2,951726.817784%26.817784%26.8%17,48617.5k826.704371%26.704371%26.7%6,091925.928734%25.928734%25.9%4,44625.906350%25.906350%25.9%14,94914.9k1025.773595%25.773595%25.8%21,30621.3k1125.693630%25.693630%25.7%10,52010.5k1225.600577%25.600577%25.6%8,1631325.385249%25.385249%25.4%6,1611425.264892%25.264892%25.3%9,2041525.083790%25.083790%25.1%3,2931624.944148%24.944148%24.9%2,5681724.460666%24.460666%24.5%3,7531824.273694%24.273694%24.3%3,0581923.852089%23.852089%23.9%2,5352023.813814%23.813814%23.8%2,3792123.799623%23.799623%23.8%6,0672223.725441%23.725441%23.7%16,21816.2k2323.689691%23.689691%23.7%4,971,0164.97M23.631299%23.631299%23.6%24,17624.2k2423.630505%23.630505%23.6%2,6402523.501754%23.501754%23.5%12,39612.4k2623.418418%23.418418%23.4%727,514728k23.311076%23.311076%23.3%2,3742723.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.994202%22.994202%23.0%29,78629.8k2822.857143%22.857143%22.9%5,3922922.683503%22.683503%22.7%23,15623.2k3022.572125%22.572125%22.6%2,2223122.507928%22.507928%22.5%5,8913222.476089%22.476089%22.5%3,3843322.352227%22.352227%22.4%2,5793422.275107%22.275107%22.3%46822.269623%22.269623%22.3%15,03415.0k3522.239929%22.239929%22.2%2,5123621.771899%21.771899%21.8%2,8313721.500688%21.500688%21.5%5,6223821.077004%21.077004%21.1%2,8223921.048428%21.048428%21.0%5,7984021.014375%21.014375%21.0%5,1754120.951206%20.951206%21.0%2,2074220.761937%20.761937%20.8%12,15312.2k4320.703654%20.703654%20.7%15320.549308%20.549308%20.5%2,0654419.304214%19.304214%19.3%1,7594519.201368%19.201368%19.2%1,9094617.796610%17.796610%17.8%7,2664715.598536%15.598536%15.6%11,29111.3k4813.333333%13.333333%13.3%1,344498.197348%8.197348%8.2%3,64750
Count number of children
# rank of county subdivision out of 50 by %

Age Cohorts by County Subdivision in the Midwest

There are 19,478 county subdivisions in the Midwest. This section compares the Willow Township to the 50 most populous county subdivisions in the Midwest and to those entities that contain or substantially overlap with the Willow Township. The least populous of the compared county subdivisions has a population of 112,821.

Children by County Subdivision#23

Percentage of population aged 0 to 17 (%):
Scope: population of the Willow Township, selected other county subdivisions in the Midwest, and entities that contain the Willow Township
0%10%20%30%Count#Willow TownshipWillowOlatheAurora TownshipAuroraKansas CityWayne TownshipWayneMilwaukeeWichitaCrawford CountyCrawfordLawrence TownshipLawrenceNorth TownshipNSt. PaulDetroitOmahaThornton TownshipThorntonSioux FallsRockford TownshipRockfordMilton TownshipMiltonBlue TownshipGrand RapidsTopekaWest North CentralPalatine TownshipPalatineProviso TownshipProvisoIowaDowners Grove TownshipDowners GrvToledoOverland ParkMidwestUnited States of AmericaUnited StatesWorth TownshipWorthClevelandCedar RapidsWarrenLincolnColumbusBloomingdale TownshipBloomingdaleCapital TownshipCapitalLisle TownshipLisleWheeling TownshipWheeling070300Tract 070300York TownshipSchaumburg TownshipSchaumburgDaytonCincinnatiChicagoAkronCenter TownshipCtrMaine TownshipMaine070300-2B.G. 070300-2Washington TownshipWashingtonSt. LouisSterling HeightsSterling HtsMinneapolisFargoKaw TownshipSpringfield TownshipSpringfieldMadisonAnn Arbor30.232558%30.232558%30.2%6529.310098%29.310098%29.3%38,92038.9k128.976809%28.976809%29.0%42,91942.9k228.278188%28.278188%28.3%42,34842.3k327.826444%27.826444%27.8%39,26239.3k426.475933%26.475933%26.5%158,504159k525.967894%25.967894%26.0%100,764101k625.928734%25.928734%25.9%4,44625.854317%25.854317%25.9%31,62531.6k725.508555%25.508555%25.5%40,40340.4k825.318684%25.318684%25.3%75,23775.2k925.218343%25.218343%25.2%172,353172k1025.047396%25.047396%25.0%110,978111k1124.478487%24.478487%24.5%41,48141.5k1224.232733%24.232733%24.2%34,78134.8k1324.130412%24.130412%24.1%42,05442.1k1424.117607%24.117607%24.1%28,56228.6k1524.112045%24.112045%24.1%38,03038.0k1623.914961%23.914961%23.9%46,36846.4k1723.720503%23.720503%23.7%30,23730.2k1823.689691%23.689691%23.7%4,971,0164.97M23.596819%23.596819%23.6%26,85226.9k1923.475670%23.475670%23.5%35,61435.6k2023.418418%23.418418%23.4%727,514728k23.327643%23.327643%23.3%34,71234.7k2123.297870%23.297870%23.3%65,43365.4k2223.297511%23.297511%23.3%42,81542.8k2323.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M23.039530%23.039530%23.0%35,21535.2k2422.998471%22.998471%23.0%89,50289.5k2522.994202%22.994202%23.0%29,78629.8k2622.854245%22.854245%22.9%30,86930.9k2722.619388%22.619388%22.6%61,75561.8k2822.597144%22.597144%22.6%185,081185k2922.578243%22.578243%22.6%25,47325.5k3022.459425%22.459425%22.5%26,15426.2k3122.348361%22.348361%22.3%26,63526.6k3222.283587%22.283587%22.3%34,53834.5k3322.275107%22.275107%22.3%46822.227271%22.227271%22.2%27,88327.9k3422.157443%22.157443%22.2%29,26429.3k3522.121536%22.121536%22.1%31,22331.2k3622.113949%22.113949%22.1%65,90265.9k3721.913385%21.913385%21.9%594,733595k3821.641949%21.641949%21.6%42,96143.0k3921.428183%21.428183%21.4%31,52331.5k4020.781276%20.781276%20.8%28,36028.4k4120.703654%20.703654%20.7%15320.516567%20.516567%20.5%27,94527.9k4220.242382%20.242382%20.2%63,97264.0k4320.047997%20.047997%20.0%26,39826.4k4419.962439%19.962439%20.0%80,78280.8k4519.917206%19.917206%19.9%23,09423.1k4618.240862%18.240862%18.2%31,31531.3k4718.124235%18.124235%18.1%29,93029.9k4817.137062%17.137062%17.1%42,16342.2k4913.862661%13.862661%13.9%16,37016.4k50
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 the Willow Township to the 50 most populous county subdivisions in the United States and to those entities that contain or substantially overlap with the Willow Township. The least populous of the compared county subdivisions has a population of 547,300.

Children by County Subdivision#32

Percentage of population aged 0 to 17 (%):
Scope: population of the Willow Township, selected other county subdivisions in the United States, and entities that contain the Willow Township
0%10%20%30%Count#Willow TownshipWillowSan BernardinoSouthwest DallasSW DallasNorthwest HarrisNW HarrisFresnoFort WorthSalt Lake CitySalt Lk CityNortheast TarrantNE TarrantHoustonMilwaukeeSan Antonio CentralSan Antonio CntrlEl PasoCrawford CountyCrawfordNortheast DallasNE DallasBronxPlanoTulsaDetroitPhoenixOntarioTownship 1:Charlotte1, CharlotteAnaheim-Santa Ana-Garden GroveAnaheim-Santa An…SacramentoLong Beach-LakewoodLong Bch-LakewoodLas VegasWest North CentralOceanside-EscondidoOceanside-Escond…IowaBrooklynMidwestUnited States of AmericaUnited StatesAlbuquerqueSan JoseEast San Gabriel ValleyE San Gabriel VlySeattle EastColumbusTown of HempsteadHempstead070300Tract 070300OrlandoPhiladelphiaSan DiegoChicagoTampaAustinSan Fernando ValleySan Fernando VlyTucsonBaltimoreLos AngelesDenver070300-2B.G. 070300-2QueensAtlantaMiamiSeattleWashingtonBostonManhattanSan Francisco30.232558%30.232558%30.2%6528.994345%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%143,291143k1125.928734%25.928734%25.9%4,44625.730246%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%790,766791k1724.651051%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%138,756139k2223.974603%23.974603%24.0%448,315448k2323.689691%23.689691%23.7%4,971,0164.97M23.555887%23.555887%23.6%155,230155k2423.418418%23.418418%23.4%727,514728k23.337305%23.337305%23.3%608,369608k2523.217458%23.217458%23.2%15,712,75815.7M23.108006%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%172,708173k3122.275107%22.275107%22.3%46822.237882%22.237882%22.2%129,541130k3222.168125%22.168125%22.2%345,809346k3321.982996%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%188,032188k3921.123671%21.123671%21.1%131,178131k4020.884750%20.884750%20.9%537,723538k4120.705017%20.705017%20.7%137,337137k4220.703654%20.703654%20.7%15320.470812%20.470812%20.5%472,878473k4319.876571%19.876571%19.9%115,302115k4419.544858%19.544858%19.5%188,182188k4517.999155%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%239,355239k4913.481174%13.481174%13.5%114,628115k50
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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Demographics

Income

Education

More Maps to Explore

State:
Iowa
County:
Crawford
ZIP Codes:
51060, 51439, 51528, 51529
Unified School Districts:
Boyer Valley, Charter Oak-Ute
Congressional District:
IA-4
State Senate District:
IA-9
State House District:
IA-18
Neighboring Townships:
Boyer, Charter Oak, Hanover, Paradise, Soldier, St. Clair, Union, Willow
Nearby Townships:
Center, Cooper, Denison, Goodrich, Grove, Harrison, Jordan, Morgan, Soldier, Washington