Age and Sex in Irwin, Iowa (City)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the places in Iowa.
Scope: population of Iowa, Irwin, and other places in Iowa
Irwin
Iowa
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%2.0%2.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-492.744%2.74%92.744%2.74%144.268%4.27%278.232%8.23%113.354%3.35%133.963%3.96%133.963%3.96%92.744%2.74%216.402%6.40%4313.110%13.1%185.488%5.49%164.878%4.88%144.268%4.27%41.220%1.22%103.049%3.05%288.537%8.54%00.000%0%00.000%0%103.049%3.05%154.573%4.57%216.402%6.40%92.744%2.74%144.268%4.27%

Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of Iowa and Irwin
Female Male
Iowa
Irwin
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.338753%-0.025407%-0.192490%-0.053856%-0.364160%0.36%0.338753%0.192490%0.338753%0.34%8325.305%25.3%-0.634146%-0.195122%-0.638182%-0.829268%0.83%0.634146%0.638182%0.001353%0.634146%0.63%12036.585%36.6%-0.474255%-0.619125%-0.474255%0.47%0.474255%0.000000%0.619125%0.025145%0.474255%0.47%5617.073%17.1%-0.152439%-0.735381%-0.152439%0.15%0.152439%0.457317%0.735381%0.054111%0.609756%0.61%103.049%3.05%-0.389566%-0.634612%-0.389566%0.39%0.389566%0.220190%0.634612%0.031800%0.609756%0.61%5917.988%18.0%

Detailed Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of Iowa and Irwin
Female Male
Iowa
Irwin
Shaded bar tips show excess over facing bar.
1%0%1%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.057165%-0.057165%-0.051411%-0.053545%-0.114329%0.1%0.057165%0.051411%0.057165%0.1%92.744%2.74%-0.243902%-0.174468%-0.075066%-0.243902%0.2%0.243902%0.060976%0.174468%0.304878%0.3%92.744%2.74%-0.365854%-0.248144%-0.065989%-0.365854%0.4%0.365854%0.121951%0.248144%0.487805%0.5%144.268%4.27%-0.731707%-0.182927%-0.334521%-0.038389%-0.914634%0.9%0.731707%0.334521%0.731707%0.7%278.232%8.23%-0.508130%-0.101626%-0.424367%-0.036879%-0.609756%0.6%0.508130%0.424367%0.508130%0.5%113.354%3.35%-0.914634%-0.524144%-0.037115%-0.914634%0.9%0.914634%0.152439%0.524144%1.067073%1.1%133.963%3.96%-0.304878%-0.711382%-0.595229%-0.000536%-1.016260%1.0%0.304878%0.595229%0.304878%0.3%133.963%3.96%-0.457317%-0.457317%-0.663219%-0.010462%-0.914634%0.9%0.457317%0.663219%0.457317%0.5%92.744%2.74%-0.487805%-0.675983%-0.012541%-0.487805%0.5%0.487805%0.304878%0.675983%0.792683%0.8%216.402%6.40%-1.219512%-0.182927%-0.690906%-0.006245%-1.402439%1.4%1.219512%0.690906%1.219512%1.2%4313.110%13.1%-0.548780%-0.607007%-0.548780%0.5%0.548780%0.000000%0.607007%0.012683%0.548780%0.5%185.488%5.49%-0.243902%-0.487805%-0.571295%-0.731707%0.7%0.243902%0.571295%0.017376%0.243902%0.2%164.878%4.88%-0.243902%-0.587487%-0.243902%0.2%0.243902%0.365854%0.587487%0.012483%0.609756%0.6%144.268%4.27%-0.060976%-0.121951%-0.628104%-0.182927%0.2%0.060976%0.628104%0.026170%0.060976%0.1%41.220%1.22%-0.243902%-0.601386%-0.243902%0.2%0.243902%0.121951%0.601386%0.033864%0.365854%0.4%103.049%3.05%-1.117886%-0.609756%-0.686455%-1.727642%1.7%1.117886%0.686455%0.030011%1.117886%1.1%288.537%8.54%-0.000000%-0.733441%0.000000%0.0%0.000000%0.000000%0.733441%0.046900%0.000000%0.0%00.000%0%-0.000000%-0.770169%0.000000%0.0%0.000000%0.000000%0.770169%0.056074%0.000000%0.0%00.000%0%-0.304878%-0.718956%-0.304878%0.3%0.304878%0.914634%0.718956%0.056734%1.219512%1.2%103.049%3.05%-0.203252%-1.117886%-0.640338%-1.321138%1.3%0.203252%0.640338%0.030076%0.203252%0.2%154.573%4.57%-0.365854%-0.639003%-0.365854%0.4%0.365854%0.548780%0.639003%0.033033%0.914634%0.9%216.402%6.40%-0.121951%-0.643465%-0.121951%0.1%0.121951%0.304878%0.643465%0.031842%0.426829%0.4%92.744%2.74%-0.121951%-0.617932%-0.121951%0.1%0.121951%0.609756%0.617932%0.031559%0.731707%0.7%144.268%4.27%

Detailed Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of Iowa and Irwin
More Females More Males
Iowa
Irwin
500%0%500%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-2418-1915-1710-145-90-4-100.000000%-104.151992%-100.000000%100.0%0.5000.5066.667%66.7%33.333%33.3%-43.025830%25.000000%25.000000%25.0%1.2501.2544.444%44.4%55.556%55.6%-26.592985%33.333333%33.333333%33.3%1.3331.3342.857%42.9%57.143%57.1%-25.000000%-11.475915%-25.000000%25.0%0.8000.8055.556%55.6%44.444%44.4%-20.000000%-8.690265%-20.000000%20.0%0.8330.8354.545%54.5%45.455%45.5%-7.081005%16.666667%16.666667%16.7%1.1671.1746.154%46.2%53.846%53.8%-233.333333%-0.090132%-233.333333%233.3%0.3000.3076.923%76.9%23.077%23.1%-100.000000%-1.577402%-100.000000%100.0%0.5000.5066.667%66.7%33.333%33.3%-1.855238%62.500000%62.500000%62.5%1.6251.6338.095%38.1%61.905%61.9%-15.000000%-0.903856%-15.000000%15.0%0.8700.8753.488%53.5%46.512%46.5%0.000000%0.000000%0.0%2.089388%1.0001.0050.000%50.0%50.000%50.0%-200.000000%-200.000000%200.0%3.041504%0.3330.3375.000%75.0%25.000%25.0%150.000000%2.124838%150.000000%150.0%2.5002.5028.571%28.6%71.429%71.4%-200.000000%-200.000000%200.0%4.166539%0.3330.3375.000%75.0%25.000%25.0%50.000000%5.630908%50.000000%50.0%1.5001.5040.000%40.0%60.000%60.0%-54.545455%-54.545455%54.5%4.371952%0.6470.6560.714%60.7%39.286%39.3%300.000000%7.891202%300.000000%300.0%4.0004.0020.000%20.0%80.000%80.0%-550.000000%-550.000000%550.0%4.696873%0.1540.1586.667%86.7%13.333%13.3%150.000000%5.169461%150.000000%150.0%2.5002.5028.571%28.6%71.429%71.4%250.000000%4.948524%250.000000%250.0%3.5003.5022.222%22.2%77.778%77.8%500.000000%5.107154%500.000000%500.0%6.0006.0014.286%14.3%85.714%85.7%

Map of Age Cohorts by Block in Irwin

Children Age Cohorts by Block#5

Percentage of population aged 0 to 17 (%):
0%10%20%30%40%50%

College Age Cohorts by Block#6

Percentage of population aged 18 to 21 (%):
0%6%11%17%23%29%

20s Age Cohorts by Block#7

Percentage of population aged 22 to 29 (%):
0%6%12%18%24%31%

30s Age Cohorts by Block#8

Percentage of population aged 30 to 39 (%):
0%8%16%24%32%40%

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%11%22%33%44%56%

60s Age Cohorts by Block#11

Percentage of population aged 60 to 69 (%):
0%13%27%40%53%67%

70s Age Cohorts by Block#12

Percentage of population aged 70 to 79 (%):
0%15%30%45%60%75%

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 Place in Shelby County

There are 13 places in Shelby County. This section compares Irwin to all of the places in Shelby County and to those entities that contain or substantially overlap with Irwin.

Children by Place#14

Percentage of population aged 0 to 17 (%):
Scope: population of Irwin, selected other places in Shelby County, and entities that contain Irwin
0%10%20%Count#960100-4B.G. 960100-4WestphaliaWest North CentralIowaTennantMidwestUnited States of AmericaUnited StatesIKM-Manning Community School DistrictIKM-ManningShelby CountyShelby960100Tract 960100HarlanZIP Code 51446ZIP 51446PanamaEarlingShelbyDefianceIrwinElk HornPortsmouthKirkmanJacksonvilleCorley28.517588%28.517588%28.5%22728.461538%28.461538%28.5%37123.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.287671%23.287671%23.3%17223.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.986369%22.986369%23.0%1,11322.588747%22.588747%22.6%2,69822.298456%22.298456%22.3%65022.064696%22.064696%22.1%1,105322.027290%22.027290%22.0%11321.890547%21.890547%21.9%44421.444695%21.444695%21.4%95518.807339%18.807339%18.8%123618.333333%18.333333%18.3%44717.987805%17.987805%18.0%59814.849624%14.849624%14.8%79911.728395%11.728395%11.7%19101.538462%1.538462%1.5%1110.000000%0.000000%0.0%0120.000000%0.000000%0.0%013

Age Cohorts by Place in Iowa

There are 1,008 places in Iowa. This section compares Irwin to the 50 most populous places in Iowa and to those entities that contain or substantially overlap with Irwin. The least populous of the compared places has a population of 7,876.

Children by Place#23

Percentage of population aged 0 to 17 (%):
Scope: population of Irwin, selected other places in Iowa, and entities that contain Irwin
0%10%20%30%Count#GrimesWaukeeDenison960100-4B.G. 960100-4PerryNorth LibertyAltoonaAnkenyNorwalkStorm LakeCliveJohnstonMarshalltownMuscatineMarionSioux CityBettendorfUrbandaleDes MoinesLe MarsIndianolaKeokukCarrollBurlingtonWaterlooWest North CentralDavenportSpencerPleasant HillIowaCrestonCouncil BluffsOttumwaMidwestNewtonUnited States of AmericaUnited StatesCedar RapidsIKM-Manning Community School DistrictIKM-ManningPellaShelby CountyShelbyCoralvilleOskaloosaWest Des MoinesW Des Moines960100Tract 960100ZIP Code 51446ZIP 51446Mount PleasantMt PleasantClintonBooneFort MadisonMason CityFort DodgeDubuqueWaverlyGrinnellFairfieldIrwinCedar FallsIowa CityAmesDecorah32.431395%32.431395%32.4%3,380131.772339%31.772339%31.8%5,387230.290656%30.290656%30.3%2,522328.517588%28.517588%28.5%22728.504317%28.504317%28.5%2,245428.208902%28.208902%28.2%4,791527.875629%27.875629%27.9%4,653627.824687%27.824687%27.8%14,86214.9k727.473854%27.473854%27.5%2,732827.405275%27.405275%27.4%2,951927.388086%27.388086%27.4%4,6621027.043251%27.043251%27.0%5,2711126.091833%26.091833%26.1%7,2111226.006943%26.006943%26.0%6,2181325.896554%25.896554%25.9%9,6331425.773595%25.773595%25.8%21,30621.3k1525.530701%25.530701%25.5%8,9481625.426908%25.426908%25.4%10,57210.6k1724.908508%24.908508%24.9%53,02053.0k1824.740484%24.740484%24.7%2,4311924.460666%24.460666%24.5%3,7532023.852089%23.852089%23.9%2,5352123.813814%23.813814%23.8%2,3792223.799623%23.799623%23.8%6,0672323.725441%23.725441%23.7%16,21816.2k2423.689691%23.689691%23.7%4,971,0164.97M23.631299%23.631299%23.6%24,17624.2k2523.630505%23.630505%23.6%2,6402623.601956%23.601956%23.6%2,2202723.418418%23.418418%23.4%727,514728k23.257585%23.257585%23.3%1,8322823.227866%23.227866%23.2%14,47714.5k2923.218261%23.218261%23.2%5,7373023.217458%23.217458%23.2%15,712,75815.7M23.127899%23.127899%23.1%3,4903123.108006%23.108006%23.1%73,612,43873.6M22.994202%22.994202%23.0%29,78629.8k3222.986369%22.986369%23.0%1,11322.908560%22.908560%22.9%2,3553322.588747%22.588747%22.6%2,69822.581930%22.581930%22.6%4,5343422.352227%22.352227%22.4%2,5793522.340322%22.340322%22.3%13,76713.8k3622.298456%22.298456%22.3%65022.027290%22.027290%22.0%11321.705335%21.705335%21.7%1,8433721.500688%21.500688%21.5%5,6223821.302244%21.302244%21.3%2,6863921.069737%21.069737%21.1%2,2694021.048428%21.048428%21.0%5,7984121.014375%21.014375%21.0%5,1754220.761937%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%1,9094617.987805%17.987805%18.0%5917.796610%17.796610%17.8%7,2664715.598536%15.598536%15.6%11,29111.3k4812.309397%12.309397%12.3%7,8874910.732624%10.732624%10.7%85750

Age Cohorts by Place in the Midwest

There are 9,721 places in the Midwest. This section compares Irwin to the 50 most populous places in the Midwest and to those entities that contain or substantially overlap with Irwin. The least populous of the compared places has a population of 95,520.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of Irwin, selected other places in the Midwest, and entities that contain Irwin
0%10%20%30%Count#AuroraDearbornOlatheJoliet960100-4B.G. 960100-4Kansas CityElginSouth BendMilwaukeeNapervilleKenoshaFlintWichitaFort WayneRockfordSt. PaulDetroitPeoriaOmahaDes MoinesIndianapolisSioux FallsGreen BayRochesterGrand RapidsLansingTopekaWest North CentralDavenportIowaKansas CityToledoOverland ParkMidwestUnited States of AmericaUnited StatesClevelandCedar RapidsIKM-Manning Community School DistrictIKM-ManningWarrenColumbusLincolnShelby CountyShelbyIndependenceSpringfield960100Tract 960100DaytonCincinnatiZIP Code 51446ZIP 51446ChicagoEvansvilleAkronSt. LouisSterling HeightsSterling HtsMinneapolisFargoColumbiaSpringfieldIrwinMadisonAnn Arbor30.107463%30.107463%30.1%60,48860.5k129.337312%29.337312%29.3%28,02328.0k229.310098%29.310098%29.3%38,92038.9k328.547605%28.547605%28.5%42,11242.1k428.517588%28.517588%28.5%22728.278188%28.278188%28.3%42,34842.3k527.918405%27.918405%27.9%31,24631.2k627.834358%27.834358%27.8%28,12328.1k726.475933%26.475933%26.5%158,504159k826.450555%26.450555%26.5%38,56238.6k926.120262%26.120262%26.1%26,08526.1k1026.042783%26.042783%26.0%25,76125.8k1125.967894%25.967894%26.0%100,764101k1225.839420%25.839420%25.8%67,42967.4k1325.506528%25.506528%25.5%38,15738.2k1425.318684%25.318684%25.3%75,23775.2k1525.218343%25.218343%25.2%172,353172k1625.069403%25.069403%25.1%29,07829.1k1725.047396%25.047396%25.0%110,978111k1824.908508%24.908508%24.9%53,02053.0k1924.805415%24.805415%24.8%210,021210k2024.789140%24.789140%24.8%41,61741.6k2124.560033%24.560033%24.6%25,77625.8k2224.207332%24.207332%24.2%26,96627.0k2323.914961%23.914961%23.9%46,36846.4k2423.889765%23.889765%23.9%27,41927.4k2523.720503%23.720503%23.7%30,23730.2k2623.689691%23.689691%23.7%4,971,0164.97M23.631299%23.631299%23.6%24,17624.2k2723.418418%23.418418%23.4%727,514728k23.365136%23.365136%23.4%110,229110k2823.297870%23.297870%23.3%65,43365.4k2923.297511%23.297511%23.3%42,81542.8k3023.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.998471%22.998471%23.0%89,50289.5k3122.994202%22.994202%23.0%29,78629.8k3222.986369%22.986369%23.0%1,11322.854245%22.854245%22.9%30,86930.9k3322.726089%22.726089%22.7%190,226190k3422.619388%22.619388%22.6%61,75561.8k3522.588747%22.588747%22.6%2,69822.480528%22.480528%22.5%26,35126.4k3622.468628%22.468628%22.5%26,23126.2k3722.298456%22.298456%22.3%65022.121536%22.121536%22.1%31,22331.2k3822.113949%22.113949%22.1%65,90265.9k3922.027290%22.027290%22.0%11321.913385%21.913385%21.9%594,733595k4021.775858%21.775858%21.8%26,16526.2k4121.641949%21.641949%21.6%42,96143.0k4220.242382%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%23,09423.1k4618.454317%18.454317%18.5%21,62221.6k4718.124235%18.124235%18.1%29,93029.9k4817.987805%17.987805%18.0%5917.137062%17.137062%17.1%42,16342.2k4913.862661%13.862661%13.9%16,37016.4k50

Age Cohorts by Place in the United States

There are 29,322 places in the United States. This section compares Irwin to the 50 most populous places in the United States and to those entities that contain or substantially overlap with Irwin. The least populous of the compared places has a population of 383,899.

Children by Place#41

Percentage of population aged 0 to 17 (%):
Scope: population of Irwin, selected other places in the United States, and entities that contain Irwin
0%10%20%Count#FresnoFort Worth960100-4B.G. 960100-4El PasoPhoenixMilwaukeeArlingtonWichitaOklahoma CitySan AntonioDallasHoustonMemphisDetroitOmahaIndianapolisTulsaCharlotteMesaLong BeachLas VegasColorado SpringsColorado SpgsSacramentoWest North CentralSan JoseIowaKansas CityMidwestAlbuquerqueJacksonvilleUnited States of AmericaUnited StatesClevelandIKM-Manning Community School DistrictIKM-ManningLouisvilleVirginia BeachVirginia BchColumbusShelby CountyShelby960100Tract 960100PhiladelphiaZIP Code 51446ZIP 51446ChicagoRaleighTucsonLos AngelesNashville-DavidsonAustinNew YorkBaltimoreDenverSan DiegoOaklandMinneapolisAtlantaPortlandMiamiIrwinWashingtonBostonSeattleSan Francisco29.163869%29.163869%29.2%149,846150k128.577574%28.577574%28.6%233,173233k228.517588%28.517588%28.5%22727.481425%27.481425%27.5%186,340186k326.837431%26.837431%26.8%417,409417k426.475933%26.475933%26.5%158,504159k526.113118%26.113118%26.1%100,248100k625.967894%25.967894%26.0%100,764101k725.770022%25.770022%25.8%159,778160k825.703473%25.703473%25.7%369,965370k925.650464%25.650464%25.7%327,924328k1025.319180%25.319180%25.3%567,297567k1125.310548%25.310548%25.3%166,001166k1225.218343%25.218343%25.2%172,353172k1325.047396%25.047396%25.0%110,978111k1424.805415%24.805415%24.8%210,021210k1524.623036%24.623036%24.6%98,46998.5k1624.540635%24.540635%24.5%198,493198k1724.297490%24.297490%24.3%114,309114k1824.070388%24.070388%24.1%113,081113k1923.976553%23.976553%24.0%147,047147k2023.968990%23.968990%24.0%107,563108k2123.750232%23.750232%23.8%115,077115k2223.689691%23.689691%23.7%4,971,0164.97M23.475697%23.475697%23.5%236,955237k2323.418418%23.418418%23.4%727,514728k23.365136%23.365136%23.4%110,229110k2423.217458%23.217458%23.2%15,712,75815.7M23.208388%23.208388%23.2%129,238129k2523.157634%23.157634%23.2%198,372198k2623.108006%23.108006%23.1%73,612,43873.6M22.998471%22.998471%23.0%89,50289.5k2722.986369%22.986369%23.0%1,11322.928906%22.928906%22.9%140,227140k2822.855339%22.855339%22.9%102,788103k2922.726089%22.726089%22.7%190,226190k3022.588747%22.588747%22.6%2,69822.298456%22.298456%22.3%65022.168125%22.168125%22.2%345,809346k3122.027290%22.027290%22.0%11321.913385%21.913385%21.9%594,733595k3221.865242%21.865242%21.9%96,49796.5k3321.726884%21.726884%21.7%114,628115k3421.605988%21.605988%21.6%846,711847k3521.537938%21.537938%21.5%138,655139k3621.399702%21.399702%21.4%194,262194k3721.199117%21.199117%21.2%1,793,8611.79M3821.123671%21.123671%21.1%131,178131k3920.705017%20.705017%20.7%137,337137k4020.651042%20.651042%20.7%283,913284k4120.390011%20.390011%20.4%84,01584.0k4219.962439%19.962439%20.0%80,78280.8k4318.722638%18.722638%18.7%85,44685.4k4418.415892%18.415892%18.4%114,287114k4517.996773%17.996773%18.0%77,85877.9k4617.987805%17.987805%18.0%5917.402645%17.402645%17.4%114,685115k4716.549062%16.549062%16.5%108,939109k4815.290895%15.290895%15.3%102,273102k4913.481174%13.481174%13.5%114,628115k50

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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