Age and Sex in Marble Rock, 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, Marble Rock, and other places in Iowa
Marble Rock
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+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-472.215%2.22%61.899%1.90%175.380%5.38%154.747%4.75%123.797%3.80%165.063%5.06%247.595%7.59%113.481%3.48%257.911%7.91%216.646%6.65%113.481%3.48%72.215%2.22%165.063%5.06%92.848%2.85%268.228%8.23%154.747%4.75%92.848%2.85%72.215%2.22%61.899%1.90%61.899%1.90%175.380%5.38%196.013%6.01%144.430%4.43%

Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of Iowa and Marble Rock
Female Male
Iowa
Marble Rock
Shaded bar tips show excess over facing bar.
1%0%1%Count%Senior2Older Adult3Younger Adult4College5Children6-0.316456%-0.008790%-0.192490%-0.053856%-0.325246%0.3%0.316456%0.192490%0.316456%0.3%7323.101%23.1%-0.506329%-0.240506%-0.638182%-0.746835%0.7%0.506329%0.638182%0.001353%0.506329%0.5%9931.329%31.3%-0.527426%-0.619125%-0.527426%0.5%0.527426%0.105485%0.619125%0.025145%0.632911%0.6%6620.886%20.9%-0.158228%-0.735381%-0.158228%0.2%0.158228%1.424051%0.735381%0.054111%1.582278%1.6%226.962%6.96%-0.210970%-0.634612%-0.210970%0.2%0.210970%0.562588%0.634612%0.031800%0.773558%0.8%5617.722%17.7%

Detailed Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of Iowa and Marble Rock
Female Male
Iowa
Marble Rock
Shaded bar tips show excess over facing bar.
2%1%0%1%2%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.059335%-0.019778%-0.051411%-0.053545%-0.079114%0.1%0.059335%0.051411%0.059335%0.1%72.215%2.22%-0.126582%-0.174468%-0.075066%-0.126582%0.1%0.126582%0.126582%0.174468%0.253165%0.3%61.899%1.90%-0.506329%-0.248144%-0.065989%-0.506329%0.5%0.506329%0.063291%0.248144%0.569620%0.6%175.380%5.38%-0.253165%-0.443038%-0.334521%-0.038389%-0.696203%0.7%0.253165%0.334521%0.253165%0.3%154.747%4.75%-0.527426%-0.210970%-0.424367%-0.036879%-0.738397%0.7%0.527426%0.424367%0.527426%0.5%123.797%3.80%-0.791139%-0.524144%-0.037115%-0.791139%0.8%0.791139%0.949367%0.524144%1.740506%1.7%165.063%5.06%-0.738397%-1.054852%-0.595229%-0.000536%-1.793249%1.8%0.738397%0.595229%0.738397%0.7%247.595%7.59%-0.791139%-0.158228%-0.663219%-0.010462%-0.949367%0.9%0.791139%0.663219%0.791139%0.8%113.481%3.48%-0.696203%-0.189873%-0.675983%-0.012541%-0.886076%0.9%0.696203%0.675983%0.696203%0.7%257.911%7.91%-0.632911%-0.690906%-0.006245%-0.632911%0.6%0.632911%0.063291%0.690906%0.696203%0.7%216.646%6.65%-0.189873%-0.316456%-0.607007%-0.506329%0.5%0.189873%0.607007%0.012683%0.189873%0.2%113.481%3.48%-0.189873%-0.063291%-0.571295%-0.253165%0.3%0.189873%0.571295%0.017376%0.189873%0.2%72.215%2.22%-0.506329%-0.587487%-0.506329%0.5%0.506329%0.000000%0.587487%0.012483%0.506329%0.5%165.063%5.06%-0.253165%-0.063291%-0.628104%-0.316456%0.3%0.253165%0.628104%0.026170%0.253165%0.3%92.848%2.85%-0.759494%-0.601386%-0.759494%0.8%0.759494%0.126582%0.601386%0.033864%0.886076%0.9%268.228%8.23%-0.527426%-0.686455%-0.527426%0.5%0.527426%0.527426%0.686455%0.030011%1.054852%1.1%154.747%4.75%-0.000000%-0.733441%0.000000%0.0%0.000000%2.848101%0.733441%0.046900%2.848101%2.8%92.848%2.85%-0.000000%-0.770169%0.000000%0.0%0.000000%2.215190%0.770169%0.056074%2.215190%2.2%72.215%2.22%-0.316456%-0.718956%-0.316456%0.3%0.316456%0.316456%0.718956%0.056734%0.632911%0.6%61.899%1.90%-0.000000%-0.640338%0.000000%0.0%0.000000%0.632911%0.640338%0.030076%0.632911%0.6%61.899%1.90%-0.379747%-0.639003%-0.379747%0.4%0.379747%0.316456%0.639003%0.033033%0.696203%0.7%175.380%5.38%-0.253165%-0.643465%-0.253165%0.3%0.253165%0.696203%0.643465%0.031842%0.949367%0.9%196.013%6.01%-0.126582%-0.617932%-0.126582%0.1%0.126582%0.632911%0.617932%0.031559%0.759494%0.8%144.430%4.43%

Detailed Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of Iowa and Marble Rock
More Females More Males
Iowa
Marble Rock
0%200%400%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-2418-1910-145-90-4-33.333333%-104.151992%-33.333333%33.3%0.7500.7557.143%57.1%42.857%42.9%-43.025830%100.000000%100.000000%100.0%2.0002.0033.333%33.3%66.667%66.7%-26.592985%12.500000%12.500000%12.5%1.1251.1347.059%47.1%52.941%52.9%-175.000000%-11.475915%-175.000000%175.0%0.3640.3673.333%73.3%26.667%26.7%-40.000000%-8.690265%-40.000000%40.0%0.7140.7158.333%58.3%41.667%41.7%-7.081005%120.000000%120.000000%120.0%2.2002.2031.250%31.3%68.750%68.8%-142.857143%-0.090132%-142.857143%142.9%0.4120.4170.833%70.8%29.167%29.2%-20.000000%-1.577402%-20.000000%20.0%0.8330.8354.545%54.5%45.455%45.5%-27.272727%-1.855238%-27.272727%27.3%0.7860.7956.000%56.0%44.000%44.0%-0.903856%10.000000%10.000000%10.0%1.1001.1047.619%47.6%52.381%52.4%-166.666667%-166.666667%166.7%2.089388%0.3750.3872.727%72.7%27.273%27.3%-33.333333%-33.333333%33.3%3.041504%0.7500.7557.143%57.1%42.857%42.9%0.000000%0.000000%0.0%2.124838%1.0001.0050.000%50.0%50.000%50.0%-25.000000%-25.000000%25.0%4.166539%0.8000.8055.556%55.6%44.444%44.4%16.666667%5.630908%16.666667%16.7%1.1671.1746.154%46.2%53.846%53.8%100.000000%4.371952%100.000000%100.0%2.0002.0033.333%33.3%66.667%66.7%100.000000%7.891202%100.000000%100.0%2.0002.0033.333%33.3%66.667%66.7%83.333333%5.169461%83.333333%83.3%1.8331.8335.294%35.3%64.706%64.7%275.000000%4.948524%275.000000%275.0%3.7503.7521.053%21.1%78.947%78.9%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 Marble Rock

Children Age Cohorts by Block#5

Percentage of population aged 0 to 17 (%):
0%8%16%25%33%42%

College Age Cohorts by Block#6

Percentage of population aged 18 to 21 (%):
0%8%16%24%32%40%

20s Age Cohorts by Block#7

Percentage of population aged 22 to 29 (%):
0%6%11%17%23%29%

30s Age Cohorts by Block#8

Percentage of population aged 30 to 39 (%):
0%5%10%15%20%25%

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%10%20%30%40%50%

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 Place in Floyd County

There are 10 places in Floyd County. This section compares Marble Rock to all of the places in Floyd County and to those entities that contain or substantially overlap with Marble Rock.

Children by Place#14

Percentage of population aged 0 to 17 (%):
Scope: population of Marble Rock, selected other places in Floyd County, and entities that contain Marble Rock
0%10%20%30%Count#Union TownshipUnionZIP Code 50653ZIP 50653ColwellNashuaFloydNora SpringsWest North CentralIowa480300-2B.G. 480300-2MidwestUnited States of AmericaUnited StatesFloyd CountyFloydGreeneRudd-Rockford-Marble Rock Community School DistrictRudd-Rockford-Ma…Charles City480300Tract 480300RockfordRuddMarble Rock32.000000%32.000000%32.0%22428.913738%28.913738%28.9%18125.373134%25.373134%25.4%17124.302542%24.302542%24.3%392224.109589%24.109589%24.1%88323.867262%23.867262%23.9%374423.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.253493%23.253493%23.3%23323.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.663084%22.663084%22.7%3,62722.242152%22.242152%22.2%248521.975309%21.975309%22.0%62321.731590%21.731590%21.7%1,629621.337185%21.337185%21.3%51721.184211%21.184211%21.2%161717.759563%17.759563%17.8%65817.721519%17.721519%17.7%569

Age Cohorts by Place in Iowa

There are 1,008 places in Iowa. This section compares Marble Rock to the 50 most populous places in Iowa and to those entities that contain or substantially overlap with Marble Rock. 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 Marble Rock, selected other places in Iowa, and entities that contain Marble Rock
0%10%20%30%Count#GrimesUnion TownshipUnionWaukeeDenisonZIP Code 50653ZIP 50653PerryNorth LibertyAltoonaAnkenyNorwalkStorm LakeCliveJohnstonMarshalltownMuscatineMarionSioux CityBettendorfUrbandaleDes MoinesLe MarsIndianolaKeokukCarrollBurlingtonWaterlooWest North CentralDavenportSpencerPleasant HillIowaCreston480300-2B.G. 480300-2Council BluffsOttumwaMidwestNewtonUnited States of AmericaUnited StatesCedar RapidsPellaFloyd CountyFloydCoralvilleOskaloosaWest Des MoinesW Des MoinesRudd-Rockford-Marble Rock Community School DistrictRudd-Rockford-Ma…Mount PleasantMt PleasantClinton480300Tract 480300BooneFort MadisonMason CityFort DodgeDubuqueWaverlyGrinnellFairfieldCedar FallsMarble RockIowa CityAmesDecorah32.431395%32.431395%32.4%3,380132.000000%32.000000%32.0%22431.772339%31.772339%31.8%5,387230.290656%30.290656%30.3%2,522328.913738%28.913738%28.9%18128.504317%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%1,8322823.253493%23.253493%23.3%23323.227866%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%2,3553322.663084%22.663084%22.7%3,62722.581930%22.581930%22.6%4,5343422.352227%22.352227%22.4%2,5793522.340322%22.340322%22.3%13,76713.8k3621.975309%21.975309%22.0%62321.705335%21.705335%21.7%1,8433721.500688%21.500688%21.5%5,6223821.337185%21.337185%21.3%51721.302244%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%1,9094617.796610%17.796610%17.8%7,2664717.721519%17.721519%17.7%5615.598536%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 Marble Rock to the 50 most populous places in the Midwest and to those entities that contain or substantially overlap with Marble Rock. 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 Marble Rock, selected other places in the Midwest, and entities that contain Marble Rock
0%10%20%30%Count#Union TownshipUnionAuroraDearbornOlatheZIP Code 50653ZIP 50653JolietKansas CityElginSouth BendMilwaukeeNapervilleKenoshaFlintWichitaFort WayneRockfordSt. PaulDetroitPeoriaOmahaDes MoinesIndianapolisSioux FallsGreen BayRochesterGrand RapidsLansingTopekaWest North CentralDavenportIowaKansas CityToledoOverland Park480300-2B.G. 480300-2MidwestUnited States of AmericaUnited StatesClevelandCedar RapidsWarrenColumbusFloyd CountyFloydLincolnIndependenceSpringfieldDaytonCincinnatiRudd-Rockford-Marble Rock Community School DistrictRudd-Rockford-Ma…ChicagoEvansvilleAkron480300Tract 480300St. LouisSterling HeightsSterling HtsMinneapolisFargoColumbiaSpringfieldMarble RockMadisonAnn Arbor32.000000%32.000000%32.0%22430.107463%30.107463%30.1%60,48860.5k129.337312%29.337312%29.3%28,02328.0k229.310098%29.310098%29.3%38,92038.9k328.913738%28.913738%28.9%18128.547605%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%42,81542.8k3023.253493%23.253493%23.3%23323.217458%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%190,226190k3422.663084%22.663084%22.7%3,62722.619388%22.619388%22.6%61,75561.8k3522.480528%22.480528%22.5%26,35126.4k3622.468628%22.468628%22.5%26,23126.2k3722.121536%22.121536%22.1%31,22331.2k3822.113949%22.113949%22.1%65,90265.9k3921.975309%21.975309%22.0%62321.913385%21.913385%21.9%594,733595k4021.775858%21.775858%21.8%26,16526.2k4121.641949%21.641949%21.6%42,96143.0k4221.337185%21.337185%21.3%51720.242382%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%29,93029.9k4817.721519%17.721519%17.7%5617.137062%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 Marble Rock to the 50 most populous places in the United States and to those entities that contain or substantially overlap with Marble Rock. 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 Marble Rock, selected other places in the United States, and entities that contain Marble Rock
0%10%20%30%Count#Union TownshipUnionFresnoZIP Code 50653ZIP 50653Fort WorthEl PasoPhoenixMilwaukeeArlingtonWichitaOklahoma CitySan AntonioDallasHoustonMemphisDetroitOmahaIndianapolisTulsaCharlotteMesaLong BeachLas VegasColorado SpringsColorado SpgsSacramentoWest North CentralSan JoseIowaKansas City480300-2B.G. 480300-2MidwestAlbuquerqueJacksonvilleUnited States of AmericaUnited StatesClevelandLouisvilleVirginia BeachVirginia BchColumbusFloyd CountyFloydPhiladelphiaRudd-Rockford-Marble Rock Community School DistrictRudd-Rockford-Ma…ChicagoRaleighTucsonLos AngelesNashville-DavidsonAustin480300Tract 480300New YorkBaltimoreDenverSan DiegoOaklandMinneapolisAtlantaPortlandMiamiMarble RockWashingtonBostonSeattleSan Francisco32.000000%32.000000%32.0%22429.163869%29.163869%29.2%149,846150k128.913738%28.913738%28.9%18128.577574%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%110,229110k2423.253493%23.253493%23.3%23323.217458%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%190,226190k3022.663084%22.663084%22.7%3,62722.168125%22.168125%22.2%345,809346k3121.975309%21.975309%22.0%62321.913385%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%194,262194k3721.337185%21.337185%21.3%51721.199117%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%77,85877.9k4617.721519%17.721519%17.7%5617.402645%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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