Age and Sex in Lewis, 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, Lewis, and other places in Iowa
Lewis
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+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-430.542%0.54%30.542%0.54%132.351%2.35%173.074%3.07%101.808%1.81%203.617%3.62%203.617%3.62%122.170%2.17%427.595%7.59%7112.839%12.8%6411.573%11.6%315.606%5.61%71.266%1.27%274.882%4.88%376.691%6.69%203.617%3.62%30.542%0.54%40.723%0.72%61.085%1.08%203.617%3.62%407.233%7.23%539.584%9.58%305.425%5.42%
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 Lewis
Female Male
Iowa
Lewis
Shaded bar tips show excess over facing bar.
1.0%0.5%0.0%0.5%1.0%Count%Senior2Older Adult3Younger Adult4College5Children6-0.160739%-0.010046%-0.192490%-0.053856%-0.170786%0.17%0.160739%0.192490%0.160739%0.16%6611.935%11.9%-0.723327%-0.289331%-0.638182%-1.012658%1.01%0.723327%0.638182%0.001353%0.723327%0.72%24043.400%43.4%-0.411895%-0.090416%-0.619125%-0.502311%0.50%0.411895%0.619125%0.025145%0.411895%0.41%9116.456%16.5%-0.090416%-0.735381%-0.090416%0.09%0.090416%0.406872%0.735381%0.054111%0.497288%0.50%132.351%2.35%-0.673096%-0.634612%-0.673096%0.67%0.673096%0.090416%0.634612%0.031800%0.763512%0.76%14325.859%25.9%
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 Lewis
Female Male
Iowa
Lewis
Shaded bar tips show excess over facing bar.
1%0%1%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.011302%-0.051411%-0.053545%-0.011302%0.0%0.011302%0.011302%0.051411%0.022604%0.0%30.542%0.54%-0.036166%-0.174468%-0.075066%-0.036166%0.0%0.036166%0.036166%0.174468%0.072333%0.1%30.542%0.54%-0.216998%-0.036166%-0.248144%-0.065989%-0.253165%0.3%0.216998%0.248144%0.216998%0.2%132.351%2.35%-0.216998%-0.180832%-0.334521%-0.038389%-0.397830%0.4%0.216998%0.334521%0.216998%0.2%173.074%3.07%-0.120555%-0.424367%-0.036879%-0.120555%0.1%0.120555%0.361664%0.424367%0.482218%0.5%101.808%1.81%-0.723327%-0.361664%-0.524144%-0.037115%-1.084991%1.1%0.723327%0.524144%0.723327%0.7%203.617%3.62%-0.482218%-0.595229%-0.000536%-0.482218%0.5%0.482218%0.241109%0.595229%0.723327%0.7%203.617%3.62%-0.542495%-0.663219%-0.010462%-0.542495%0.5%0.542495%0.000000%0.663219%0.542495%0.5%122.170%2.17%-0.759494%-0.675983%-0.012541%-0.759494%0.8%0.759494%0.000000%0.675983%0.759494%0.8%427.595%7.59%-1.121157%-0.325497%-0.690906%-0.006245%-1.446655%1.4%1.121157%0.690906%1.121157%1.1%7112.839%12.8%-0.397830%-1.518987%-0.607007%-1.916817%1.9%0.397830%0.607007%0.012683%0.397830%0.4%6411.573%11.6%-0.433996%-0.571295%-0.433996%0.4%0.433996%0.253165%0.571295%0.017376%0.687161%0.7%315.606%5.61%-0.108499%-0.036166%-0.587487%-0.144665%0.1%0.108499%0.587487%0.012483%0.108499%0.1%71.266%1.27%-0.470163%-0.036166%-0.628104%-0.506329%0.5%0.470163%0.628104%0.026170%0.470163%0.5%274.882%4.88%-0.578662%-0.601386%-0.578662%0.6%0.578662%0.180832%0.601386%0.033864%0.759494%0.8%376.691%6.69%-0.241109%-0.723327%-0.686455%-0.964436%1.0%0.241109%0.686455%0.030011%0.241109%0.2%203.617%3.62%-0.000000%-0.733441%0.000000%0.0%0.000000%0.542495%0.733441%0.046900%0.542495%0.5%30.542%0.54%-0.000000%-0.770169%0.000000%0.0%0.000000%0.723327%0.770169%0.056074%0.723327%0.7%40.723%0.72%-0.180832%-0.718956%-0.180832%0.2%0.180832%0.180832%0.718956%0.056734%0.361664%0.4%61.085%1.08%-0.421941%-0.640338%-0.421941%0.4%0.421941%0.361664%0.640338%0.030076%0.783605%0.8%203.617%3.62%-0.542495%-0.639003%-0.542495%0.5%0.542495%0.361664%0.639003%0.033033%0.904159%0.9%407.233%7.23%-0.940325%-0.643465%-0.940325%0.9%0.940325%0.036166%0.643465%0.031842%0.976492%1.0%539.584%9.58%-0.397830%-0.289331%-0.617932%-0.687161%0.7%0.397830%0.617932%0.031559%0.397830%0.4%305.425%5.42%
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 Lewis
More Females More Males
Iowa
Lewis
200%0%200%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-2418-1915-1710-145-90-4-104.151992%100.000000%100.000000%100.0%2.0002.0033.333%33.3%66.667%66.7%-43.025830%100.000000%100.000000%100.0%2.0002.0033.333%33.3%66.667%66.7%-16.666667%-26.592985%-16.666667%16.7%0.8570.8653.846%53.8%46.154%46.2%-83.333333%-11.475915%-83.333333%83.3%0.5450.5564.706%64.7%35.294%35.3%-8.690265%300.000000%300.000000%300.0%4.0004.0020.000%20.0%80.000%80.0%-50.000000%-7.081005%-50.000000%50.0%0.6670.6760.000%60.0%40.000%40.0%-0.090132%50.000000%50.000000%50.0%1.5001.5040.000%40.0%60.000%60.0%0.000000%-1.577402%0.000000%0.0%1.0001.0050.000%50.0%50.000%50.0%0.000000%-1.855238%0.000000%0.0%1.0001.0050.000%50.0%50.000%50.0%-29.032258%-0.903856%-29.032258%29.0%0.7750.7856.338%56.3%43.662%43.7%-381.818182%-381.818182%381.8%2.089388%0.2080.2182.813%82.8%17.188%17.2%58.333333%3.041504%58.333333%58.3%1.5831.5838.710%38.7%61.290%61.3%-33.333333%-33.333333%33.3%2.124838%0.7500.7557.143%57.1%42.857%42.9%-7.692308%-7.692308%7.7%4.166539%0.9290.9351.852%51.9%48.148%48.1%31.250000%5.630908%31.250000%31.3%1.3131.3143.243%43.2%56.757%56.8%-300.000000%-300.000000%300.0%4.371952%0.2500.2580.000%80.0%20.000%20.0%100.000000%7.891202%100.000000%100.0%2.0002.0033.333%33.3%66.667%66.7%85.714286%4.696873%85.714286%85.7%1.8571.8635.000%35.0%65.000%65.0%66.666667%5.169461%66.666667%66.7%1.6671.6737.500%37.5%62.500%62.5%3.846154%4.948524%3.846154%3.8%1.0381.0449.057%49.1%50.943%50.9%-72.727273%-72.727273%72.7%5.107154%0.5790.5863.333%63.3%36.667%36.7%
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 Lewis

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%10%20%30%40%50%

20s Age Cohorts by Block#7

Percentage of population aged 22 to 29 (%):
0%8%16%24%32%40%

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%15%30%45%60%75%

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%8%16%24%32%40%
Road Data ©OpenStreetMap

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Age Cohorts by Place in Cass County

There are 8 places in Cass County. This section compares Lewis to all of the places in Cass County and to those entities that contain or substantially overlap with Lewis.

Children by Place#14

Percentage of population aged 0 to 17 (%):
Scope: population of Lewis, selected other places in Cass County, and entities that contain Lewis
0%10%20%Count#CumberlandGriswoldGriswold Community School DistrictGriswoldMarneLewis190200Tract 190200West North CentralIowaCass TownshipMidwestUnited States of AmericaUnited StatesCass CountyCass190200-1B.G. 190200-1MassenaAtlanticZIP Code 51544ZIP 51544AnitaWiota28.400000%28.400000%28.4%71127.976190%27.976190%28.0%329227.534283%27.534283%27.5%1,02427.500000%27.500000%27.5%33325.858951%25.858951%25.9%143425.370148%25.370148%25.4%63423.689691%23.689691%23.7%4,971,0164.97M23.418418%23.418418%23.4%727,514728k23.289665%23.289665%23.3%16023.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M22.295839%22.295839%22.3%2,99521.982211%21.982211%22.0%17321.864952%21.864952%21.9%68521.505061%21.505061%21.5%1,466620.193470%20.193470%20.2%16718.390805%18.390805%18.4%16076.976744%6.976744%7.0%68
Count number of children
# rank of place out of 8 by %

Age Cohorts by Place in Iowa

There are 1,008 places in Iowa. This section compares Lewis to the 50 most populous places in Iowa and to those entities that contain or substantially overlap with Lewis. 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 Lewis, selected other places in Iowa, and entities that contain Lewis
0%10%20%30%Count#GrimesWaukeeDenisonPerryNorth LibertyAltoonaAnkenyGriswold Community School DistrictGriswoldNorwalkStorm LakeCliveJohnstonMarshalltownMuscatineMarionLewisSioux CityBettendorfUrbandale190200Tract 190200Des MoinesLe MarsIndianolaKeokukCarrollBurlingtonWaterlooWest North CentralDavenportSpencerPleasant HillIowaCass TownshipCrestonCouncil BluffsOttumwaMidwestNewtonUnited States of AmericaUnited StatesCedar RapidsPellaCoralvilleOskaloosaWest Des MoinesW Des MoinesCass CountyCass190200-1B.G. 190200-1Mount PleasantMt PleasantClintonBooneFort MadisonMason CityFort DodgeDubuqueWaverlyZIP Code 51544ZIP 51544GrinnellFairfieldCedar FallsIowa CityAmesDecorah32.431395%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%14,86214.9k727.534283%27.534283%27.5%1,02427.473854%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%9,6331425.858951%25.858951%25.9%14325.773595%25.773595%25.8%21,30621.3k1525.530701%25.530701%25.5%8,9481625.426908%25.426908%25.4%10,57210.6k1725.370148%25.370148%25.4%63424.908508%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%727,514728k23.289665%23.289665%23.3%16023.257585%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%13,76713.8k3622.295839%22.295839%22.3%2,99521.982211%21.982211%22.0%17321.705335%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%2,0654420.193470%20.193470%20.2%16719.304214%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%11,29111.3k4812.309397%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 Lewis to the 50 most populous places in the Midwest and to those entities that contain or substantially overlap with Lewis. 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 Lewis, selected other places in the Midwest, and entities that contain Lewis
0%10%20%30%Count#AuroraDearbornOlatheJolietKansas CityElginSouth BendGriswold Community School DistrictGriswoldMilwaukeeNapervilleKenoshaFlintWichitaLewisFort WayneRockford190200Tract 190200St. PaulDetroitPeoriaOmahaDes MoinesIndianapolisSioux FallsGreen BayRochesterGrand RapidsLansingTopekaWest North CentralDavenportIowaKansas CityToledoOverland ParkCass TownshipMidwestUnited States of AmericaUnited StatesClevelandCedar RapidsWarrenColumbusLincolnIndependenceSpringfieldCass CountyCassDaytonCincinnati190200-1B.G. 190200-1ChicagoEvansvilleAkronSt. LouisZIP Code 51544ZIP 51544Sterling HeightsSterling HtsMinneapolisFargoColumbiaSpringfieldMadisonAnn 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%42,11242.1k428.278188%28.278188%28.3%42,34842.3k527.918405%27.918405%27.9%31,24631.2k627.834358%27.834358%27.8%28,12328.1k727.534283%27.534283%27.5%1,02426.475933%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%100,764101k1225.858951%25.858951%25.9%14325.839420%25.839420%25.8%67,42967.4k1325.506528%25.506528%25.5%38,15738.2k1425.370148%25.370148%25.4%63425.318684%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%42,81542.8k3023.289665%23.289665%23.3%16023.217458%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%26,23126.2k3722.295839%22.295839%22.3%2,99522.121536%22.121536%22.1%31,22331.2k3822.113949%22.113949%22.1%65,90265.9k3921.982211%21.982211%22.0%17321.913385%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%63,97264.0k4320.193470%20.193470%20.2%16720.047997%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%29,93029.9k4817.137062%17.137062%17.1%42,16342.2k4913.862661%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 Lewis to the 50 most populous places in the United States and to those entities that contain or substantially overlap with Lewis. 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 Lewis, selected other places in the United States, and entities that contain Lewis
0%10%20%Count#FresnoFort WorthGriswold Community School DistrictGriswoldEl PasoPhoenixMilwaukeeArlingtonWichitaLewisOklahoma CitySan AntonioDallas190200Tract 190200HoustonMemphisDetroitOmahaIndianapolisTulsaCharlotteMesaLong BeachLas VegasColorado SpringsColorado SpgsSacramentoWest North CentralSan JoseIowaKansas CityCass TownshipMidwestAlbuquerqueJacksonvilleUnited States of AmericaUnited StatesClevelandLouisvilleVirginia BeachVirginia BchColumbusCass CountyCassPhiladelphia190200-1B.G. 190200-1ChicagoRaleighTucsonLos AngelesNashville-DavidsonAustinNew YorkBaltimoreDenverSan DiegoOaklandZIP Code 51544ZIP 51544MinneapolisAtlantaPortlandMiamiWashingtonBostonSeattleSan Francisco29.163869%29.163869%29.2%149,846150k128.577574%28.577574%28.6%233,173233k227.534283%27.534283%27.5%1,02427.481425%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%100,764101k725.858951%25.858951%25.9%14325.770022%25.770022%25.8%159,778160k825.703473%25.703473%25.7%369,965370k925.650464%25.650464%25.7%327,924328k1025.370148%25.370148%25.4%63425.319180%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%110,229110k2423.289665%23.289665%23.3%16023.217458%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%190,226190k3022.295839%22.295839%22.3%2,99522.168125%22.168125%22.2%345,809346k3121.982211%21.982211%22.0%17321.913385%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%84,01584.0k4220.193470%20.193470%20.2%16719.962439%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%77,85877.9k4617.402645%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
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:
Cass
Township:
Cass
ZIP Code:
51544
Unified School District:
Griswold
Congressional District:
IA-3
State Senate District:
IA-11
State House District:
IA-21
Nearby Cities:
Atlantic, Cumberland, Elliott, Grant, Griswold, Hancock, Marne, Oakland, Walnut, Wiota