Age and Sex in the Saylorville Reservoir, Polk County, Iowa (Unorganized Territory)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the county subdivisions in Polk County.
Scope: population of Polk County, the Saylorville Reservoir, and other county subdivisions in Polk County
Saylorville Reservoir
Polk County
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0%2%4%6%8%10%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%1333.333%33.3%00.000%0%00.000%0%00.000%0%1333.333%33.3%00.000%0%00.000%0%00.000%0%615.385%15.4%00.000%0%00.000%0%717.949%17.9%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%
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 Polk County and the Saylorville Reservoir
Female Male
Polk County
Saylorville Reservoir
Shaded bar tips show excess over facing bar.
1%0%1%Count%Senior2Older Adult3Younger Adult4College5Children6-0.000000%-0.139772%-0.046147%0.000000%0.0%0.000000%0.925926%0.139772%0.925926%0.9%1333.333%33.3%-0.615385%-0.717949%-0.626545%-0.014287%-1.333333%1.3%0.615385%0.626545%0.615385%0.6%1948.718%48.7%-0.000000%-0.997151%-0.725445%-0.010817%-0.997151%1.0%0.000000%0.725445%0.000000%0.0%717.949%17.9%-0.000000%-0.617705%0.000000%0.0%0.000000%0.000000%0.617705%0.011815%0.000000%0.0%00.000%0%-0.000000%-0.686460%0.000000%0.0%0.000000%0.000000%0.686460%0.032136%0.000000%0.0%00.000%0%
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 Polk County and the Saylorville Reservoir
Female Male
Polk County
Saylorville Reservoir
Shaded bar tips show excess over facing bar.
10%5%0%5%10%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%-0.032001%-0.032777%0.000000%0.0%0.000000%0.000000%0.032001%0.000000%0.0%00.000%0%-0.000000%-0.106760%-0.072916%0.000000%0.0%0.000000%0.000000%0.106760%0.000000%0.0%00.000%0%-0.000000%-0.173752%-0.048436%0.000000%0.0%0.000000%6.666667%0.173752%6.666667%6.7%1333.333%33.3%-0.000000%-0.250371%-0.032625%0.000000%0.0%0.000000%0.000000%0.250371%0.000000%0.0%00.000%0%-0.000000%-0.310132%-0.065772%0.000000%0.0%0.000000%0.000000%0.310132%0.000000%0.0%00.000%0%-0.000000%-0.467485%-0.084829%0.000000%0.0%0.000000%0.000000%0.467485%0.000000%0.0%00.000%0%-0.000000%-11.111111%-0.497722%-0.012704%-11.111111%11.1%0.000000%0.497722%0.000000%0.0%1333.333%33.3%-0.000000%-0.559392%-0.104648%0.000000%0.0%0.000000%0.000000%0.559392%0.000000%0.0%00.000%0%-0.000000%-0.588293%-0.039681%0.000000%0.0%0.000000%0.000000%0.588293%0.000000%0.0%00.000%0%-0.000000%-0.660991%-0.020298%0.000000%0.0%0.000000%0.000000%0.660991%0.000000%0.0%00.000%0%-0.000000%-0.653891%0.000000%0.0%0.000000%3.076923%0.653891%0.005445%3.076923%3.1%615.385%15.4%-0.000000%-0.669136%0.000000%0.0%0.000000%0.000000%0.669136%0.032581%0.000000%0.0%00.000%0%-0.000000%-0.660817%-0.009801%0.000000%0.0%0.000000%0.000000%0.660817%0.000000%0.0%00.000%0%-0.000000%-3.589744%-0.786394%-3.589744%3.6%0.000000%0.786394%0.010280%0.000000%0.0%717.949%17.9%-0.000000%-0.776681%-0.007405%0.000000%0.0%0.000000%0.000000%0.776681%0.000000%0.0%00.000%0%-0.000000%-0.629049%-0.053358%0.000000%0.0%0.000000%0.000000%0.629049%0.000000%0.0%00.000%0%-0.000000%-0.578449%-0.037024%0.000000%0.0%0.000000%0.000000%0.578449%0.000000%0.0%00.000%0%-0.000000%-0.654675%0.000000%0.0%0.000000%0.000000%0.654675%0.060110%0.000000%0.0%00.000%0%-0.000000%-0.600337%0.000000%0.0%0.000000%0.000000%0.600337%0.012087%0.000000%0.0%00.000%0%-0.000000%-0.640156%0.000000%0.0%0.000000%0.000000%0.640156%0.031579%0.000000%0.0%00.000%0%-0.000000%-0.684469%0.000000%0.0%0.000000%0.000000%0.684469%0.017510%0.000000%0.0%00.000%0%-0.000000%-0.685688%0.000000%0.0%0.000000%0.000000%0.685688%0.046171%0.000000%0.0%00.000%0%-0.000000%-0.717007%0.000000%0.0%0.000000%0.000000%0.717007%0.033060%0.000000%0.0%00.000%0%
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 Polk County and the Saylorville Reservoir
More Females More Males
Polk County
Saylorville Reservoir
1,000%500%0%M:FFM62-6430-34-1,000.000000%-2.552509%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-1,000.000000%-1,000.000000%> 1000%1.307190%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 Tract in the Saylorville Reservoir

Children Age Cohorts by Tract#5

Percentage of population aged 0 to 17 (%):
19.8%22.2%24.4%26.7%29.0%31.3%

College Age Cohorts by Tract#6

Percentage of population aged 18 to 21 (%):
2.8%3.3%3.8%4.3%4.8%5.4%

20s Age Cohorts by Tract#7

Percentage of population aged 22 to 29 (%):
5.7%6.6%7.4%8.2%9.0%9.9%

30s Age Cohorts by Tract#8

Percentage of population aged 30 to 39 (%):
11.4%12.5%13.6%14.6%15.7%16.8%

40s Age Cohorts by Tract#9

Percentage of population aged 40 to 49 (%):
10.3%11.9%13.4%15.0%16.5%18.0%

50s Age Cohorts by Tract#10

Percentage of population aged 50 to 59 (%):
11.6%12.5%13.4%14.2%15.1%16.0%

60s Age Cohorts by Tract#11

Percentage of population aged 60 to 69 (%):
6.5%8.0%9.5%11.0%12.4%14.0%

70s Age Cohorts by Tract#12

Percentage of population aged 70 to 79 (%):
2.4%3.4%4.3%5.3%6.2%7.2%

80+ Age Cohorts by Tract#13

Percentage of population aged 80 and older (%):
0.7%2.6%4.5%6.4%8.3%10.2%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in the Saylorville Reservoir

Children Age Cohorts by Block Group#14

Percentage of population aged 0 to 17 (%):
27.1%30.0%32.9%35.8%38.7%41.7%

College Age Cohorts by Block Group#15

Percentage of population aged 18 to 21 (%):
0.4%1.3%2.1%3.0%3.8%4.7%

20s Age Cohorts by Block Group#16

Percentage of population aged 22 to 29 (%):
0.0%2.6%5.1%7.7%10.3%12.9%

30s Age Cohorts by Block Group#17

Percentage of population aged 30 to 39 (%):
9.6%11.5%13.3%15.1%16.9%18.7%

40s Age Cohorts by Block Group#18

Percentage of population aged 40 to 49 (%):
6.6%9.1%11.5%13.9%16.2%18.7%

50s Age Cohorts by Block Group#19

Percentage of population aged 50 to 59 (%):
9.0%10.6%12.1%13.7%15.2%16.8%

60s Age Cohorts by Block Group#20

Percentage of population aged 60 to 69 (%):
7.1%8.7%10.3%11.9%13.5%15.1%

70s Age Cohorts by Block Group#21

Percentage of population aged 70 to 79 (%):
1.8%2.9%3.9%5.0%6.0%7.1%

80+ Age Cohorts by Block Group#22

Percentage of population aged 80 and older (%):
0.0%0.6%1.2%1.9%2.5%3.1%
Road Data ©OpenStreetMap

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Age Cohorts by Neighborhood in the Saylorville Reservoir

There is 1 neighborhood that are fully or partially contained within the Saylorville Reservoir (0 fully and 1 partially). This section compares all 1 of those to each other, the Saylorville Reservoir, and other entities that contain or substantially overlap with the Saylorville Reservoir.

Children by Neighborhood#23

Percentage of population aged 0 to 17 (%):
Scope: population of the Saylorville Reservoir, selected neighborhoods in the Saylorville Reservoir, and entities that contain the Saylorville Reservoir
0%5%10%15%20%25%Count#Des Moines and West Des Moines Metro AreaDes MoinesPolk CountyPolkLower Beaver NeighborhoodLower BeaverWest North CentralIowaMidwestUnited States of AmericaUnited StatesSaylorville ReservoirSaylorville Rese…25.663215%25.663215%25.7%156,996157k25.291021%25.291021%25.3%116,126116k24.089801%24.089801%24.1%1,4911,492123.689691%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%73,612,43873.6M0.000000%0.000000%0.0%0
Count number of children
# rank of neighborhood out of 1 by %

Age Cohorts by County Subdivision in the Des Moines Area

There are 89 county subdivisions in the Des Moines Area. This section compares the Saylorville Reservoir to the 50 most populous county subdivisions in the Des Moines Area and to those entities that contain or substantially overlap with the Saylorville Reservoir. The least populous of the compared county subdivisions has a population of 749.

Children by County Subdivision#32

Percentage of population aged 0 to 17 (%):
Scope: population of the Saylorville Reservoir, selected other county subdivisions in the Des Moines Area, and entities that contain the Saylorville Reservoir
0%10%20%30%Count#Jefferson TownshipJeffersonScott TownshipScottAllen TownshipAllenRichland TownshipRichlandFranklin TownshipFranklinWalnut TownshipWalnutMadison TownshipMadisonGrant TownshipGrantOtter TownshipOtterMadison TownshipMadisonLincoln TownshipLincolnCrocker TownshipCrockerAllen TownshipAllenSpring Valley TownshipSpg VlyClay TownshipSugar Grove TownshipSugar GrvValley TownshipVlyVan Meter TownshipVan MeterLinn TownshipDouglas TownshipDouglasBelmont TownshipBelmontAdel TownshipCamp TownshipLee TownshipBoone TownshipBooneWintersetJefferson TownshipJeffersonSouth TownshipSStuart TownshipStuartWebster TownshipWebsterOhio TownshipDes Moines and West Des Moines Metro AreaDes MoinesBloomfield TownshipBloomfieldJackson TownshipJacksonPolk CountyPolkElkhart TownshipElkhartUnion TownshipUnionIndianolaWhite Breast TownshipWhite BreastDelaware TownshipDelawareGreenfield TownshipGreenfieldWest North CentralIowaVirginia TownshipVirginiaMidwestUnited States of AmericaUnited StatesDes Moines TownshipDes MoinesFour Mile TownshipFour MileWalnut TownshipWalnutCass TownshipLincoln TownshipLincolnAdams TownshipAdamsDes Moines TownshipDes MoinesSaylor TownshipSaylorCrawford TownshipCrawfordBeaver TownshipBeaverSaylorville ReservoirSaylorville Rese…33.785694%33.785694%33.8%3,585133.296337%33.296337%33.3%300233.157525%33.157525%33.2%943333.124019%33.124019%33.1%422432.594524%32.594524%32.6%1,500532.167912%32.167912%32.2%8,483632.048537%32.048537%32.0%449731.821736%31.821736%31.8%814831.547105%31.547105%31.5%365931.262376%31.262376%31.3%1,2631029.653882%29.653882%29.7%3171128.859738%28.859738%28.9%15,44415.4k1228.194726%28.194726%28.2%1,2511328.140822%28.140822%28.1%2,3901427.901677%27.901677%27.9%5,1421527.770360%27.770360%27.8%2081627.755308%27.755308%27.8%5491727.650670%27.650670%27.7%9911827.109705%27.109705%27.1%2,3131927.008547%27.008547%27.0%1,8962026.941986%26.941986%26.9%2742126.935030%26.935030%26.9%1,8202226.847178%26.847178%26.8%5852326.817784%26.817784%26.8%17,48617.5k2426.704371%26.704371%26.7%6,0912526.347421%26.347421%26.3%1,3592626.307278%26.307278%26.3%4882726.287625%26.287625%26.3%3932825.957049%25.957049%26.0%2782925.906350%25.906350%25.9%14,94914.9k3025.809822%25.809822%25.8%2473125.663215%25.663215%25.7%156,996157k25.600577%25.600577%25.6%8,1633225.333333%25.333333%25.3%2853325.291021%25.291021%25.3%116,126116k24.844720%24.844720%24.8%4003424.482109%24.482109%24.5%5203524.460666%24.460666%24.5%3,7533624.439462%24.439462%24.4%2183724.158916%24.158916%24.2%2,1043823.708010%23.708010%23.7%1,4683923.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.342175%23.342175%23.3%2644023.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.683503%22.683503%22.7%23,15623.2k4122.572125%22.572125%22.6%2,2224222.269623%22.269623%22.3%15,03415.0k4322.176591%22.176591%22.2%5404421.587744%21.587744%21.6%4654521.298701%21.298701%21.3%2464621.287129%21.287129%21.3%3014719.144108%19.144108%19.1%1,1814818.141593%18.141593%18.1%1644917.149015%17.149015%17.1%557500.000000%0.000000%0.0%0
Count number of children
# rank of county subdivision out of 50 by %

Age Cohorts by County Subdivision in Iowa

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

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of the Saylorville Reservoir, selected other county subdivisions in Iowa, and entities that contain the Saylorville Reservoir
0%10%20%30%Count#Jefferson TownshipJeffersonWalnut TownshipWalnutPenn TownshipCrocker TownshipCrockerTaylor TownshipTaylorClay TownshipStorm LakeLee TownshipBoone TownshipBooneWebster TownshipWebsterSioux CityMarion TownshipMarionDes Moines and West Des Moines Metro AreaDes MoinesBloomfield TownshipBloomfieldBloomington TownshipBloomingtonPolk CountyPolkPleasant 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 TownshipMonroeClintonDes Moines TownshipDes MoinesMason CityFort DodgeMadison TownshipMadisonDubuqueWaverlyGrinnellFairfieldCedar FallsIowa CityDecorah TownshipDecorahWashington TownshipWashingtonSaylorville ReservoirSaylorville Rese…33.785694%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%21,30621.3k1125.693630%25.693630%25.7%10,52010.5k1225.663215%25.663215%25.7%156,996157k25.600577%25.600577%25.6%8,1631325.385249%25.385249%25.4%6,1611425.291021%25.291021%25.3%116,126116k25.264892%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%5,6223821.077004%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%2,0654419.304214%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%3,647500.000000%0.000000%0.0%0
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 Saylorville Reservoir to the 50 most populous county subdivisions in the Midwest and to those entities that contain or substantially overlap with the Saylorville Reservoir. The least populous of the compared county subdivisions has a population of 112,821.

Children by County Subdivision#50

Percentage of population aged 0 to 17 (%):
Scope: population of the Saylorville Reservoir, selected other county subdivisions in the Midwest, and entities that contain the Saylorville Reservoir
0%10%20%Count#OlatheAurora TownshipAuroraKansas CityWayne TownshipWayneMilwaukeeWichitaLawrence TownshipLawrenceDes Moines and West Des Moines Metro AreaDes MoinesNorth TownshipNSt. PaulPolk CountyPolkDetroitOmahaThornton 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 TownshipCtrMaine TownshipMaineWashington TownshipWashingtonSt. LouisSterling HeightsSterling HtsMinneapolisFargoKaw TownshipSpringfield TownshipSpringfieldMadisonAnn ArborSaylorville ReservoirSaylorville Rese…29.310098%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%31,62531.6k725.663215%25.663215%25.7%156,996157k25.508555%25.508555%25.5%40,40340.4k825.318684%25.318684%25.3%75,23775.2k925.291021%25.291021%25.3%116,126116k25.218343%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%31,52331.5k4020.781276%20.781276%20.8%28,36028.4k4120.516567%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%16,37016.4k500.000000%0.000000%0.0%0
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 Saylorville Reservoir to the 50 most populous county subdivisions in the United States and to those entities that contain or substantially overlap with the Saylorville Reservoir. The least populous of the compared county subdivisions has a population of 547,300.

Children by County Subdivision#59

Percentage of population aged 0 to 17 (%):
Scope: population of the Saylorville Reservoir, selected other county subdivisions in the United States, and entities that contain the Saylorville Reservoir
0%10%20%Count#San BernardinoSouthwest DallasSW DallasNorthwest HarrisNW HarrisFresnoFort WorthSalt Lake CitySalt Lk CityNortheast TarrantNE TarrantHoustonMilwaukeeSan Antonio CentralSan Antonio CntrlEl PasoNortheast DallasNE DallasDes Moines and West Des Moines Metro AreaDes MoinesBronxPlanoTulsaPolk CountyPolkDetroitPhoenixOntarioTownship 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 VlyTucsonBaltimoreLos AngelesDenverQueensAtlantaMiamiSeattleWashingtonBostonManhattanSan FranciscoSaylorville ReservoirSaylorville Rese…28.994345%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%143,291143k1125.730246%25.730246%25.7%398,059398k1225.663215%25.663215%25.7%156,996157k25.573137%25.573137%25.6%367,431367k1325.541202%25.541202%25.5%139,787140k1425.334430%25.334430%25.3%150,050150k1525.291021%25.291021%25.3%116,126116k25.218343%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%188,032188k3921.123671%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%472,878473k4319.876571%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%114,628115k500.000000%0.000000%0.0%0
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:
Polk
Metro Area:
Des Moines Area
Cities:
Johnston, Polk City
ZIP Codes:
50023, 50109, 50131, 50156, 50226, 50310, 50313
Unified School Districts:
Ankeny, Johnston, Madrid, North Polk, Woodward-Granger
Neighborhood:
Lower Beaver
Congressional District:
IA-3
State Senate Districts:
IA-10, IA-18, IA-19, IA-20
State House Districts:
IA-19, IA-36, IA-38, IA-39
Neighboring Townships:
Crocker, Des Moines, Des Moines, Jefferson, Madison, Saylor, Union, Webster
Nearby Townships:
Delaware, Douglas, Douglas, Elkhart, Garden, Grant, Lincoln, Palestine, Walnut, Walnut