Age and Sex in Bolan, Iowa (Unincorporated Place)

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, Bolan, and other places in Iowa
Bolan
Iowa
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
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%922.500%22.5%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%00.000%0%717.500%17.5%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%00.000%0%717.500%17.5%820.000%20.0%922.500%22.5%
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 Bolan
Female Male
Iowa
Bolan
Shaded bar tips show excess over facing bar.
2%1%0%1%2%Count%Senior2Older Adult3Younger Adult4College5Children6-0.000000%-0.625000%-0.192490%-0.053856%-0.625000%0.6%0.000000%0.192490%0.000000%0.0%922.500%22.5%-0.000000%-0.638182%0.000000%0.0%0.000000%0.000000%0.638182%0.001353%0.000000%0.0%00.000%0%-0.000000%-0.972222%-0.619125%-0.972222%1.0%0.000000%0.619125%0.025145%0.000000%0.0%717.500%17.5%-0.000000%-0.735381%0.000000%0.0%0.000000%0.000000%0.735381%0.054111%0.000000%0.0%00.000%0%-0.972222%-1.388889%-0.634612%-2.361111%2.4%0.972222%0.634612%0.031800%0.972222%1.0%2460.000%60.0%
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 Iowa and Bolan
Female Male
Iowa
Bolan
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%-0.051411%-0.053545%0.000000%0.0%0.000000%0.000000%0.051411%0.000000%0.0%00.000%0%-0.000000%-0.174468%-0.075066%0.000000%0.0%0.000000%0.000000%0.174468%0.000000%0.0%00.000%0%-0.000000%-4.500000%-0.248144%-0.065989%-4.500000%4.5%0.000000%0.248144%0.000000%0.0%922.500%22.5%-0.000000%-0.334521%-0.038389%0.000000%0.0%0.000000%0.000000%0.334521%0.000000%0.0%00.000%0%-0.000000%-0.424367%-0.036879%0.000000%0.0%0.000000%0.000000%0.424367%0.000000%0.0%00.000%0%-0.000000%-0.524144%-0.037115%0.000000%0.0%0.000000%0.000000%0.524144%0.000000%0.0%00.000%0%-0.000000%-0.595229%-0.000536%0.000000%0.0%0.000000%0.000000%0.595229%0.000000%0.0%00.000%0%-0.000000%-0.663219%-0.010462%0.000000%0.0%0.000000%0.000000%0.663219%0.000000%0.0%00.000%0%-0.000000%-0.675983%-0.012541%0.000000%0.0%0.000000%0.000000%0.675983%0.000000%0.0%00.000%0%-0.000000%-0.690906%-0.006245%0.000000%0.0%0.000000%0.000000%0.690906%0.000000%0.0%00.000%0%-0.000000%-0.607007%0.000000%0.0%0.000000%0.000000%0.607007%0.012683%0.000000%0.0%00.000%0%-0.000000%-0.571295%0.000000%0.0%0.000000%0.000000%0.571295%0.017376%0.000000%0.0%00.000%0%-0.000000%-0.587487%0.000000%0.0%0.000000%0.000000%0.587487%0.012483%0.000000%0.0%00.000%0%-0.000000%-3.500000%-0.628104%-3.500000%3.5%0.000000%0.628104%0.026170%0.000000%0.0%717.500%17.5%-0.000000%-0.601386%0.000000%0.0%0.000000%0.000000%0.601386%0.033864%0.000000%0.0%00.000%0%-0.000000%-0.686455%0.000000%0.0%0.000000%0.000000%0.686455%0.030011%0.000000%0.0%00.000%0%-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%-0.000000%-0.718956%0.000000%0.0%0.000000%0.000000%0.718956%0.056734%0.000000%0.0%00.000%0%-0.000000%-0.640338%0.000000%0.0%0.000000%0.000000%0.640338%0.030076%0.000000%0.0%00.000%0%-0.000000%-0.639003%0.000000%0.0%0.000000%3.500000%0.639003%0.033033%3.500000%3.5%717.500%17.5%-0.000000%-4.000000%-0.643465%-4.000000%4.0%0.000000%0.643465%0.031842%0.000000%0.0%820.000%20.0%-0.000000%-4.500000%-0.617932%-4.500000%4.5%0.000000%0.617932%0.031559%0.000000%0.0%922.500%22.5%
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 Bolan
More Females More Males
Iowa
Bolan
1,000%500%0%M:FFM75-7930-345-90-4-1,000.000000%-26.592985%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-1,000.000000%-1,000.000000%> 1000%4.166539%0.0000100.000%100%0.000%0%-1,000.000000%-1,000.000000%> 1000%4.948524%0.0000100.000%100%0.000%0%-1,000.000000%-1,000.000000%> 1000%5.107154%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 Bolan

Children Age Cohorts by Block#5

Percentage of population aged 0 to 17 (%):
25%30%35%40%45%50%

College Age Cohorts by Block#6

Percentage of population aged 18 to 21 (%):
0.0%1.8%3.6%5.5%7.3%9.1%

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 (%):
0.0%1.4%2.9%4.3%5.7%7.2%

40s Age Cohorts by Block#9

Percentage of population aged 40 to 49 (%):
0%7%15%22%29%37%

50s Age Cohorts by Block#10

Percentage of population aged 50 to 59 (%):
0.0%1.8%3.6%5.5%7.3%9.1%

60s Age Cohorts by Block#11

Percentage of population aged 60 to 69 (%):
0%5%10%15%20%25%

70s Age Cohorts by Block#12

Percentage of population aged 70 to 79 (%):
0.0%2.9%5.7%8.6%11.4%14.3%
Road Data ©OpenStreetMap

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Age Cohorts by Place in the Mason City Area

There are 21 places in the Mason City Area. This section compares Bolan to all of the places in the Mason City Area and to those entities that contain or substantially overlap with Bolan.

Children by Place#14

Percentage of population aged 0 to 17 (%):
Scope: population of Bolan, selected other places in the Mason City Area, and entities that contain Bolan
0%20%40%60%Count#BolanBurchinalDoughertyManlySwaledaleNora SpringsWest North CentralIowaMidwestUnited States of AmericaUnited StatesRockwellThornton690300Tract 690300NorthwoodWorth CountyWorthClear LakeMason CityMason City Metro AreaMason CityHanlontownFertileZIP Code 50448ZIP 50448GraftonBarton TownshipBartonPlymouthRock Falls690300-1B.G. 690300-1JoiceMeserveyVenturaKensettPortland60.000000%60.000000%60.0%24152.830189%52.830189%52.8%28226.562500%26.562500%26.6%17326.176660%26.176660%26.2%406425.414365%25.414365%25.4%46523.867262%23.867262%23.9%374623.689691%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%73,612,43873.6M23.000000%23.000000%23.0%253722.614108%22.614108%22.6%109822.222222%22.222222%22.2%69621.802175%21.802175%21.8%421921.475800%21.475800%21.5%1,62421.376243%21.376243%21.4%1,6341021.048428%21.048428%21.0%5,7981120.904355%20.904355%20.9%10,63310.6k20.379147%20.379147%20.4%431219.942197%19.942197%19.9%691319.008264%19.008264%19.0%16118.873239%18.873239%18.9%671418.072289%18.072289%18.1%3018.023256%18.023256%18.0%621518.000000%18.000000%18.0%271617.040359%17.040359%17.0%11416.410256%16.410256%16.4%321716.384181%16.384181%16.4%291815.468114%15.468114%15.5%1141914.492754%14.492754%14.5%50200.000000%0.000000%0.0%021
Count number of children
# rank of place out of 21 by %

Age Cohorts by Place in Iowa

There are 1,008 places in Iowa. This section compares Bolan to the 50 most populous places in Iowa and to those entities that contain or substantially overlap with Bolan. 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 Bolan, selected other places in Iowa, and entities that contain Bolan
0%20%40%60%Count#BolanGrimesWaukeeDenisonPerryNorth LibertyAltoonaAnkenyNorwalkStorm LakeCliveJohnstonMarshalltownMuscatineMarionSioux CityBettendorfUrbandaleDes MoinesLe MarsIndianolaKeokukCarrollBurlingtonWaterlooWest North CentralDavenportSpencerPleasant HillIowaCrestonCouncil BluffsOttumwaMidwestNewtonUnited States of AmericaUnited StatesCedar RapidsPellaCoralvilleOskaloosaWest Des MoinesW Des Moines690300Tract 690300Mount PleasantMt PleasantClintonWorth CountyWorthBooneFort MadisonMason CityFort DodgeMason City Metro AreaMason CityDubuqueWaverlyGrinnellFairfieldZIP Code 50448ZIP 50448Barton TownshipBartonCedar Falls690300-1B.G. 690300-1Iowa CityAmesDecorah60.000000%60.000000%60.0%2432.431395%32.431395%32.4%3,380131.772339%31.772339%31.8%5,387230.290656%30.290656%30.3%2,522328.504317%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%29,78629.8k3222.908560%22.908560%22.9%2,3553322.581930%22.581930%22.6%4,5343422.352227%22.352227%22.4%2,5793522.340322%22.340322%22.3%13,76713.8k3622.222222%22.222222%22.2%69621.705335%21.705335%21.7%1,8433721.500688%21.500688%21.5%5,6223821.475800%21.475800%21.5%1,62421.302244%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%5,1754220.904355%20.904355%20.9%10,63310.6k20.761937%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%1,9094619.008264%19.008264%19.0%16118.072289%18.072289%18.1%3017.796610%17.796610%17.8%7,2664717.040359%17.040359%17.0%11415.598536%15.598536%15.6%11,29111.3k4812.309397%12.309397%12.3%7,8874910.732624%10.732624%10.7%85750
Count number of children
# rank of place out of 50 by %

Age Cohorts by Place in the Midwest

There are 9,721 places in the Midwest. This section compares Bolan to the 50 most populous places in the Midwest and to those entities that contain or substantially overlap with Bolan. 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 Bolan, selected other places in the Midwest, and entities that contain Bolan
0%20%40%60%Count#BolanAuroraDearbornOlatheJolietKansas CityElginSouth BendMilwaukeeNapervilleKenoshaFlintWichitaFort WayneRockfordSt. PaulDetroitPeoriaOmahaDes MoinesIndianapolisSioux FallsGreen BayRochesterGrand RapidsLansingTopekaWest North CentralDavenportIowaKansas CityToledoOverland ParkMidwestUnited States of AmericaUnited StatesClevelandCedar RapidsWarrenColumbusLincolnIndependenceSpringfield690300Tract 690300DaytonCincinnatiChicagoEvansvilleAkronWorth CountyWorthMason City Metro AreaMason CitySt. LouisSterling HeightsSterling HtsMinneapolisFargoZIP Code 50448ZIP 50448ColumbiaSpringfieldBarton TownshipBartonMadison690300-1B.G. 690300-1Ann Arbor60.000000%60.000000%60.0%2430.107463%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%42,11242.1k428.278188%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%29,78629.8k3222.854245%22.854245%22.9%30,86930.9k3322.726089%22.726089%22.7%190,226190k3422.619388%22.619388%22.6%61,75561.8k3522.480528%22.480528%22.5%26,35126.4k3622.468628%22.468628%22.5%26,23126.2k3722.222222%22.222222%22.2%69622.121536%22.121536%22.1%31,22331.2k3822.113949%22.113949%22.1%65,90265.9k3921.913385%21.913385%21.9%594,733595k4021.775858%21.775858%21.8%26,16526.2k4121.641949%21.641949%21.6%42,96143.0k4221.475800%21.475800%21.5%1,62420.904355%20.904355%20.9%10,63310.6k20.242382%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%23,09423.1k4619.008264%19.008264%19.0%16118.454317%18.454317%18.5%21,62221.6k4718.124235%18.124235%18.1%29,93029.9k4818.072289%18.072289%18.1%3017.137062%17.137062%17.1%42,16342.2k4917.040359%17.040359%17.0%11413.862661%13.862661%13.9%16,37016.4k50
Count number of children
# rank of place out of 50 by %

Age Cohorts by Place in the United States

There are 29,322 places in the United States. This section compares Bolan to the 50 most populous places in the United States and to those entities that contain or substantially overlap with Bolan. 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 Bolan, selected other places in the United States, and entities that contain Bolan
0%20%40%60%Count#BolanFresnoFort WorthEl PasoPhoenixMilwaukeeArlingtonWichitaOklahoma CitySan AntonioDallasHoustonMemphisDetroitOmahaIndianapolisTulsaCharlotteMesaLong BeachLas VegasColorado SpringsColorado SpgsSacramentoWest North CentralSan JoseIowaKansas CityMidwestAlbuquerqueJacksonvilleUnited States of AmericaUnited StatesClevelandLouisvilleVirginia BeachVirginia BchColumbus690300Tract 690300PhiladelphiaChicagoRaleighTucsonLos AngelesNashville-DavidsonWorth CountyWorthAustinNew YorkBaltimoreMason City Metro AreaMason CityDenverSan DiegoOaklandMinneapolisZIP Code 50448ZIP 50448AtlantaPortlandBarton TownshipBartonMiamiWashington690300-1B.G. 690300-1BostonSeattleSan Francisco60.000000%60.000000%60.0%2429.163869%29.163869%29.2%149,846150k128.577574%28.577574%28.6%233,173233k227.481425%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%89,50289.5k2722.928906%22.928906%22.9%140,227140k2822.855339%22.855339%22.9%102,788103k2922.726089%22.726089%22.7%190,226190k3022.222222%22.222222%22.2%69622.168125%22.168125%22.2%345,809346k3121.913385%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%138,655139k3621.475800%21.475800%21.5%1,62421.399702%21.399702%21.4%194,262194k3721.199117%21.199117%21.2%1,793,8611.79M3821.123671%21.123671%21.1%131,178131k3920.904355%20.904355%20.9%10,63310.6k20.705017%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%80,78280.8k4319.008264%19.008264%19.0%16118.722638%18.722638%18.7%85,44685.4k4418.415892%18.415892%18.4%114,287114k4518.072289%18.072289%18.1%3017.996773%17.996773%18.0%77,85877.9k4617.402645%17.402645%17.4%114,685115k4717.040359%17.040359%17.0%11416.549062%16.549062%16.5%108,939109k4815.290895%15.290895%15.3%102,273102k4913.481174%13.481174%13.5%114,628115k50
Count number of children
# rank of place 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:
Worth
Metro Area:
Mason City Area
Township:
Barton
ZIP Code:
50448
Unified School Districts:
Northwood-Kensett, St. Ansgar
Congressional District:
IA-1
State Senate District:
IA-26
State House District:
IA-51
Nearby Cities:
Carpenter, Grafton, Kensett, Manly, Northwood, Plymouth, Rock Falls, St. Ansgar
Nearby Unincorporated Places:
Mona, Otranto