Age and Sex in the Jefferson Township, Poweshiek 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 Poweshiek County.
Scope: population of Poweshiek County, the Jefferson Township, and other county subdivisions in Poweshiek County
Jefferson Township
0%1%2%3%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-462.273%2.27%51.894%1.89%103.788%3.79%103.788%3.79%197.197%7.20%31.136%1.14%62.273%2.27%114.167%4.17%114.167%4.17%62.273%2.27%207.576%7.58%31.136%1.14%3513.258%13.3%207.576%7.58%259.470%9.47%41.515%1.52%00.000%0%00.000%0%20.758%0.76%31.136%1.14%176.439%6.44%228.333%8.33%269.848%9.85%
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 Poweshiek County and the Jefferson Township
Female Male
Poweshiek County
Jefferson Township
Shaded bar tips show excess over facing bar.
1.0%0.5%0.0%0.5%1.0%Count%Senior2Older Adult3Younger Adult4College5Children6-0.126263%-0.305135%-0.231506%-0.071749%-0.431397%0.43%0.126263%0.231506%0.126263%0.13%5320.076%20.1%-0.393939%-0.075758%-0.619912%-0.040382%-0.469697%0.47%0.393939%0.619912%0.393939%0.39%5721.591%21.6%-0.631313%-0.478228%-0.631313%0.63%0.631313%0.505051%0.478228%0.021778%1.136364%1.14%8431.818%31.8%-0.000000%-0.189394%-1.270003%-0.196005%-0.189394%0.19%0.000000%1.270003%0.000000%0.00%20.758%0.76%-0.652357%-0.126263%-0.548933%-0.023867%-0.778620%0.78%0.652357%0.548933%0.652357%0.65%6825.758%25.8%
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 Poweshiek County and the Jefferson Township
Female Male
Poweshiek County
Jefferson Township
Shaded bar tips show excess over facing bar.
2%1%0%1%2%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.000000%-0.142045%-0.062091%-0.068132%-0.142045%0.1%0.000000%0.062091%0.000000%0.0%62.273%2.27%-0.000000%-0.378788%-0.207282%-0.094512%-0.378788%0.4%0.000000%0.207282%0.000000%0.0%51.894%1.89%-0.075758%-0.354420%-0.075180%-0.075758%0.1%0.075758%0.606061%0.354420%0.681818%0.7%103.788%3.79%-0.000000%-0.757576%-0.431747%-0.110622%-0.757576%0.8%0.000000%0.431747%0.000000%0.0%103.788%3.79%-0.378788%-1.641414%-0.443919%-0.019690%-2.020202%2.0%0.378788%0.443919%0.378788%0.4%197.197%7.20%-0.000000%-0.568182%-0.520889%-0.016110%-0.568182%0.6%0.000000%0.520889%0.000000%0.0%31.136%1.14%-0.252525%-0.252525%-0.477929%-0.505051%0.5%0.252525%0.477929%0.039380%0.252525%0.3%62.273%2.27%-0.946970%-0.504779%-0.946970%0.9%0.946970%0.189394%0.504779%0.034905%1.136364%1.1%114.167%4.17%-0.227273%-0.816239%-0.074106%-0.227273%0.2%0.227273%0.378788%0.816239%0.606061%0.6%114.167%4.17%-0.151515%-0.151515%-0.648695%-0.071958%-0.303030%0.3%0.151515%0.648695%0.151515%0.2%62.273%2.27%-0.606061%-0.303030%-0.541295%-0.909091%0.9%0.606061%0.541295%0.018258%0.606061%0.6%207.576%7.58%-0.000000%-0.227273%-0.548813%-0.111696%-0.227273%0.2%0.000000%0.548813%0.000000%0.0%31.136%1.14%-0.530303%-0.328644%-0.530303%0.5%0.530303%1.590909%0.328644%0.110622%2.121212%2.1%3513.258%13.3%-0.681818%-0.487595%-0.017184%-0.681818%0.7%0.681818%0.151515%0.487595%0.833333%0.8%207.576%7.58%-0.757576%-0.434969%-0.757576%0.8%0.757576%0.378788%0.434969%0.042960%1.136364%1.1%259.470%9.47%-0.000000%-0.505051%-0.658719%-0.096660%-0.505051%0.5%0.000000%0.658719%0.000000%0.0%41.515%1.52%-0.000000%-1.573408%-0.118140%0.000000%0.0%0.000000%0.000000%1.573408%0.000000%0.0%00.000%0%-0.000000%-0.955859%-0.322200%0.000000%0.0%0.000000%0.000000%0.955859%0.000000%0.0%00.000%0%-0.000000%-0.378788%-1.275373%-0.171840%-0.378788%0.4%0.000000%1.275373%0.000000%0.0%20.758%0.76%-0.126263%-0.126263%-0.637239%-0.037590%-0.252525%0.3%0.126263%0.637239%0.126263%0.1%31.136%1.14%-0.227273%-0.833333%-0.542369%-0.119214%-1.060606%1.1%0.227273%0.542369%0.227273%0.2%176.439%6.44%-0.530303%-0.433895%-0.530303%0.5%0.530303%0.606061%0.433895%0.137472%1.136364%1.1%228.333%8.33%-0.909091%-0.151515%-0.480077%-0.081624%-1.060606%1.1%0.909091%0.480077%0.909091%0.9%269.848%9.85%
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 Poweshiek County and the Jefferson Township
More Females More Males
Poweshiek County
Jefferson Township
1,000%500%0%500%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-2418-1915-1710-145-90-4-1,000.000000%-109.729730%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-1,000.000000%-45.595855%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-21.212121%800.000000%800.000000%800.0%9.0009.0010.000%10.0%90.000%90.0%-1,000.000000%-25.621891%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-433.333333%-4.435484%-433.333333%433.3%0.1880.1984.211%84.2%15.789%15.8%-1,000.000000%-3.092784%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-100.000000%-100.000000%100.0%8.239700%0.5000.5066.667%66.7%33.333%33.3%20.000000%6.914894%20.000000%20.0%1.2001.2045.455%45.5%54.545%54.5%-9.078947%166.666667%166.666667%166.7%2.6672.6727.273%27.3%72.727%72.7%-100.000000%-11.092715%-100.000000%100.0%0.5000.5066.667%66.7%33.333%33.3%-50.000000%-50.000000%50.0%3.373016%0.6670.6760.000%60.0%40.000%40.0%-1,000.000000%-20.352250%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%300.000000%33.660131%300.000000%300.0%4.0004.0020.000%20.0%80.000%80.0%-3.524229%22.222222%22.222222%22.2%1.2221.2245.000%45.0%55.000%55.0%50.000000%9.876543%50.000000%50.0%1.5001.5040.000%40.0%60.000%60.0%-1,000.000000%-14.673913%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-1,000.000000%-13.473684%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-100.000000%-5.898876%-100.000000%100.0%0.5000.5066.667%66.7%33.333%33.3%-366.666667%-21.980198%-366.666667%366.7%0.2140.2182.353%82.4%17.647%17.6%114.285714%31.683168%114.285714%114.3%2.1432.1431.818%31.8%68.182%68.2%-16.666667%-17.002237%-16.666667%16.7%0.8570.8653.846%53.8%46.154%46.2%
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 Block in the Jefferson Township

Children Age Cohorts by Block#5

Percentage of population aged 0 to 17 (%):
0%12%24%36%48%61%

College Age Cohorts by Block#6

Percentage of population aged 18 to 21 (%):
0%13%27%40%53%67%

20s Age Cohorts by Block#7

Percentage of population aged 22 to 29 (%):
0%20%40%60%80%100%

30s Age Cohorts by Block#8

Percentage of population aged 30 to 39 (%):
0%20%40%60%80%100%

40s Age Cohorts by Block#9

Percentage of population aged 40 to 49 (%):
0%11%23%34%46%58%

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%20%40%60%80%100%
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 Jefferson Township to the 50 most populous county subdivisions in Iowa and to those entities that contain or substantially overlap with the Jefferson 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 Jefferson Township, selected other county subdivisions in Iowa, and entities that contain the Jefferson Township
0%10%20%30%Count#Jefferson TownshipJeffersonWalnut TownshipWalnutPenn TownshipCrocker TownshipCrockerTaylor TownshipTaylorClay TownshipStorm LakeLee TownshipBoone TownshipBooneWebster TownshipWebsterSioux CityJefferson TownshipJeffersonMarion 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 TownshipNewtonOskaloosaWalnut TownshipWalnutTimber Creek TownshipTimber CrkMonroe TownshipMonroeClinton370100Tract 370100Des Moines TownshipDes MoinesMason CityFort DodgeMadison TownshipMadisonDubuqueWaverlyPoweshiek CountyPoweshiekGrinnellFairfieldCedar Falls370100-2B.G. 370100-2Iowa CityDecorah TownshipDecorahWashington TownshipWashington33.785694%33.785694%33.8%3,585132.167912%32.167912%32.2%8,483229.094891%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%6,091925.906350%25.906350%25.9%14,94914.9k1025.773595%25.773595%25.8%21,30621.3k1125.757576%25.757576%25.8%6825.693630%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%2,5793422.269623%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%5,6223821.142857%21.142857%21.1%62921.077004%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%12,15312.2k4320.549308%20.549308%20.5%2,0654420.191172%20.191172%20.2%3,76019.304214%19.304214%19.3%1,7594519.201368%19.201368%19.2%1,9094617.796610%17.796610%17.8%7,2664716.756757%16.756757%16.8%15515.598536%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 Jefferson Township to the 50 most populous county subdivisions in the Midwest and to those entities that contain or substantially overlap with the Jefferson 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 Jefferson Township, selected other county subdivisions in the Midwest, and entities that contain the Jefferson Township
0%10%20%Count#OlatheAurora TownshipAuroraKansas CityWayne TownshipWayneMilwaukeeWichitaLawrence TownshipLawrenceJefferson TownshipJeffersonNorth 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 TownshipWheelingYork TownshipSchaumburg TownshipSchaumburgDaytonCincinnatiChicagoAkronCenter TownshipCtr370100Tract 370100Maine TownshipMaineWashington TownshipWashingtonSt. LouisPoweshiek CountyPoweshiekSterling HeightsSterling HtsMinneapolisFargoKaw TownshipSpringfield TownshipSpringfieldMadison370100-2B.G. 370100-2Ann Arbor29.310098%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%100,764101k625.854317%25.854317%25.9%31,62531.6k725.757576%25.757576%25.8%6825.508555%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%34,53834.5k3322.227271%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%31,52331.5k4021.142857%21.142857%21.1%62920.781276%20.781276%20.8%28,36028.4k4120.516567%20.516567%20.5%27,94527.9k4220.242382%20.242382%20.2%63,97264.0k4320.191172%20.191172%20.2%3,76020.047997%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%42,16342.2k4916.756757%16.756757%16.8%15513.862661%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 Jefferson Township to the 50 most populous county subdivisions in the United States and to those entities that contain or substantially overlap with the Jefferson 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 Jefferson Township, selected other county subdivisions in the United States, and entities that contain the Jefferson Township
0%10%20%Count#San BernardinoSouthwest DallasSW DallasNorthwest HarrisNW HarrisFresnoFort WorthSalt Lake CitySalt Lk CityNortheast TarrantNE TarrantHoustonMilwaukeeSan Antonio CentralSan Antonio CntrlEl PasoJefferson TownshipJeffersonNortheast 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 HempsteadHempsteadOrlandoPhiladelphiaSan DiegoChicagoTampaAustinSan Fernando ValleySan Fernando VlyTucson370100Tract 370100BaltimoreLos AngelesDenverQueensPoweshiek CountyPoweshiekAtlantaMiamiSeattleWashington370100-2B.G. 370100-2BostonManhattanSan Francisco28.994345%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%143,291143k1125.757576%25.757576%25.8%6825.730246%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%172,708173k3122.237882%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%188,032188k3921.142857%21.142857%21.1%62921.123671%21.123671%21.1%131,178131k4020.884750%20.884750%20.9%537,723538k4120.705017%20.705017%20.7%137,337137k4220.470812%20.470812%20.5%472,878473k4320.191172%20.191172%20.2%3,76019.876571%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%114,685115k4716.756757%16.756757%16.8%15516.549062%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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State:
Iowa
County:
Poweshiek
City:
Hartwick
ZIP Codes:
52208, 52211, 52215, 52232
Unified School Districts:
Belle Plaine, H-L-V, South Tama County
Congressional District:
IA-1
State Senate District:
IA-38
State House District:
IA-76
Neighboring Townships:
Bear Creek, Hartford, Honey Creek, Iowa, Madison, Richland, Salt Creek, Warren
Nearby Townships:
Leroy, Lincoln, Lincoln, Marengo, Otter Creek, Scott, Sheridan, Sumner, York