Age and Sex in St. Clair County, Illinois (County)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the counties in Illinois.
Scope: population of Illinois, St. Clair County, and other counties in Illinois
St. Clair County
Illinois
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-45,0921.917%1.92%5,2491.977%1.98%6,1902.331%2.33%9,0013.389%3.39%6,2832.366%2.37%4,9401.860%1.86%9,1623.450%3.45%7,0472.654%2.65%18,76918.8k7.067%7.07%19,77619.8k7.447%7.45%17,69517.7k6.663%6.66%16,68616.7k6.283%6.28%16,87316.9k6.354%6.35%17,20517.2k6.479%6.48%17,54417.5k6.606%6.61%10,49210.5k3.951%3.95%3,8551.452%1.45%3,3221.251%1.25%6,3342.385%2.39%11,05311.1k4.162%4.16%18,01618.0k6.784%6.78%18,02718.0k6.788%6.79%16,95817.0k6.386%6.39%
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 Illinois and St. Clair County
Female Male
Illinois
St. Clair County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.162168%-0.060112%-0.165938%-0.053741%-0.222280%0.22%0.162168%0.165938%0.162168%0.16%36,75536.8k13.840%13.8%-0.640963%-0.060625%-0.644483%-0.024551%-0.701588%0.70%0.640963%0.644483%0.640963%0.64%89,13589.1k33.564%33.6%-0.640365%-0.018660%-0.675790%-0.659025%0.66%0.640365%0.675790%0.008914%0.640365%0.64%62,11462.1k23.389%23.4%-0.633169%-0.674894%-0.633169%0.63%0.633169%0.005554%0.674894%0.030373%0.638723%0.64%13,51113.5k5.088%5.09%-0.655950%-0.633316%-0.655950%0.66%0.655950%0.028074%0.633316%0.026163%0.684024%0.68%64,05464.1k24.120%24.1%
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 Illinois and St. Clair County
Female Male
Illinois
St. Clair County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.042597%-0.034643%-0.039174%-0.042517%-0.077240%0.08%0.042597%0.039174%0.042597%0.04%5,0921.917%1.92%-0.140303%-0.114697%-0.144845%-0.068886%-0.255000%0.25%0.140303%0.144845%0.140303%0.14%5,2491.977%1.98%-0.188877%-0.088414%-0.203849%-0.066811%-0.277291%0.28%0.188877%0.203849%0.188877%0.19%6,1902.331%2.33%-0.298228%-0.081410%-0.300244%-0.059206%-0.379638%0.38%0.298228%0.300244%0.298228%0.30%9,0013.389%3.39%-0.390106%-0.008410%-0.387742%-0.055373%-0.398515%0.40%0.390106%0.387742%0.390106%0.39%6,2832.366%2.37%-0.424560%-0.080958%-0.469530%-0.056884%-0.505518%0.51%0.424560%0.469530%0.424560%0.42%4,9401.860%1.86%-0.539345%-0.071293%-0.534885%-0.040654%-0.610639%0.61%0.539345%0.534885%0.539345%0.54%9,1623.450%3.45%-0.623943%-0.078887%-0.604325%-0.042815%-0.702831%0.70%0.623943%0.604325%0.623943%0.62%7,0472.654%2.65%-0.679673%-0.054148%-0.651709%-0.040054%-0.733821%0.73%0.679673%0.651709%0.679673%0.68%18,76918.8k7.067%7.07%-0.719888%-0.049554%-0.695837%-0.024594%-0.769442%0.77%0.719888%0.695837%0.719888%0.72%19,77619.8k7.447%7.45%-0.642545%-0.047521%-0.661607%-0.012616%-0.690065%0.69%0.642545%0.661607%0.642545%0.64%17,69517.7k6.663%6.66%-0.589527%-0.077569%-0.650601%-0.003975%-0.667096%0.67%0.589527%0.650601%0.589527%0.59%16,68616.7k6.283%6.28%-0.624320%-0.022066%-0.647538%-0.002309%-0.646386%0.65%0.624320%0.647538%0.624320%0.62%16,87316.9k6.354%6.35%-0.620931%-0.053847%-0.690067%-0.674778%0.67%0.620931%0.690067%0.002213%0.620931%0.62%17,20517.2k6.479%6.48%-0.647515%-0.026208%-0.685705%-0.673723%0.67%0.647515%0.685705%0.016743%0.647515%0.65%17,54417.5k6.606%6.61%-0.629341%-0.678707%-0.629341%0.63%0.629341%0.058240%0.678707%0.025737%0.687580%0.69%10,49210.5k3.951%3.95%-0.600974%-0.249653%-0.706227%-0.850626%0.85%0.600974%0.706227%0.013204%0.600974%0.60%3,8551.452%1.45%-0.549010%-0.686439%-0.549010%0.55%0.549010%0.152879%0.686439%0.037349%0.701889%0.70%3,3221.251%1.25%-0.566519%-0.653455%-0.566519%0.57%0.566519%0.059495%0.653455%0.035470%0.626014%0.63%6,3342.385%2.39%-0.686576%-0.661483%-0.686576%0.69%0.686576%0.014183%0.661483%0.027369%0.700760%0.70%11,05311.1k4.162%4.16%-0.678016%-0.649229%-0.678016%0.68%0.678016%0.000753%0.649229%0.024833%0.678769%0.68%18,01618.0k6.784%6.78%-0.654820%-0.631827%-0.654820%0.65%0.654820%0.047972%0.631827%0.027192%0.702793%0.70%18,02718.0k6.788%6.79%-0.616638%-0.601994%-0.616638%0.62%0.616638%0.043830%0.601994%0.025741%0.660469%0.66%16,95817.0k6.386%6.39%
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 Illinois and St. Clair County
More Females More Males
Illinois
St. Clair County
100%50%0%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-81.325967%-108.533512%-81.325967%81.3%0.5510.5564.454%64.5%35.546%35.5%-81.749866%-47.558421%-81.749866%81.7%0.5500.5564.508%64.5%35.492%35.5%-46.810207%-32.775021%-46.810207%46.8%0.6810.6859.483%59.5%40.517%40.5%-27.297980%-19.719383%-27.297980%27.3%0.7860.7956.005%56.0%43.995%44.0%-2.155727%-14.280841%-2.155727%2.2%0.9790.9850.533%50.5%49.467%49.5%-19.068736%-12.115010%-19.068736%19.1%0.8400.8454.352%54.4%45.648%45.6%-13.218525%-7.600436%-13.218525%13.2%0.8830.8853.100%53.1%46.900%46.9%-12.643331%-7.084825%-12.643331%12.6%0.8880.8952.973%53.0%47.027%47.0%-7.966759%-6.145977%-7.966759%8.0%0.9260.9351.915%51.9%48.085%48.1%-6.883565%-3.534511%-6.883565%6.9%0.9360.9451.664%51.7%48.336%48.3%-7.395687%-1.906910%-7.395687%7.4%0.9310.9351.783%51.8%48.217%48.2%-13.157895%-0.610908%-13.157895%13.2%0.8840.8853.086%53.1%46.914%46.9%-3.534379%-0.356647%-3.534379%3.5%0.9660.9750.868%50.9%49.132%49.1%-8.671922%-8.671922%8.7%0.320685%0.9200.9252.078%52.1%47.922%47.9%-4.047453%-4.047453%4.0%2.441770%0.9610.9650.992%51.0%49.008%49.0%9.254089%3.792094%9.254089%9.3%1.0931.0947.789%47.8%52.211%52.2%-41.541353%-41.541353%41.5%1.869725%0.7070.7158.599%58.6%41.401%41.4%27.846365%5.441005%27.846365%27.8%1.2781.2843.889%43.9%56.111%56.1%10.501828%5.428078%10.501828%10.5%1.1051.1147.506%47.5%52.494%52.5%2.065814%4.137471%2.065814%2.1%1.0211.0249.489%49.5%50.511%50.5%0.111074%3.824931%0.111074%0.1%1.0011.0049.972%50.0%50.028%50.0%7.326049%4.303673%7.326049%7.3%1.0731.0748.233%48.2%51.767%51.8%7.107963%4.276016%7.107963%7.1%1.0711.0748.284%48.3%51.716%51.7%
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 County Subdivision in St. Clair County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
12.5%17.1%21.6%26.1%30.6%35.2%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
0.0%1.7%3.4%5.1%6.9%8.6%

20s Age Cohorts by County Subdivision#7

Percentage of population aged 22 to 29 (%):
4.7%7.1%9.4%11.7%14.0%16.3%

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
5.8%7.6%9.4%11.1%12.9%14.7%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
7.7%11.1%14.4%17.8%21.1%24.5%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
9.7%12.6%15.5%18.4%21.3%24.2%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
4.9%7.8%10.5%13.3%16.1%19.0%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
3.1%4.4%5.8%7.1%8.5%9.8%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
1.6%2.7%3.7%4.7%5.7%6.8%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Tract in St. Clair County

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
5%12%19%26%33%41%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
2.1%3.8%5.3%6.9%8.5%10.1%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
2.0%5.4%8.8%12.1%15.5%18.9%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
5.8%8.5%11.1%13.7%16.3%18.9%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
7.9%10.6%13.2%15.8%18.5%21.1%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
5.8%9.3%12.7%16.2%19.6%23.1%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
0.6%4.1%7.6%11.0%14.4%17.9%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
0.0%2.5%5.0%7.4%9.9%12.5%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
0.0%2.2%4.3%6.5%8.7%10.9%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in St. Clair County

Children Age Cohorts by Block Group#23

Percentage of population aged 0 to 17 (%):
0%12%23%34%46%57%

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
0%8%17%25%33%42%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
0%8%16%23%31%39%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
0%7%13%20%26%33%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
0%6%12%17%23%29%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
0%8%15%23%30%38%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
0%6%13%19%26%32%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
0.0%4.1%8.2%12.3%16.4%20.5%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0.0%4.9%9.8%14.6%19.5%24.5%
Road Data ©OpenStreetMap

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Age Cohorts by Place in St. Clair County

There are 37 places that are fully or partially contained within St. Clair County (30 fully and 7 partially). This section compares all 37 of those to each other, St. Clair County, and other entities that contain or substantially overlap with St. Clair County.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of St. Clair County, selected places in St. Clair County, and entities that contain St. Clair County
0%10%20%30%Count#Scott AFBBrooklynLenzburgAlortonHeckerMascoutahFairmont CityNew AthensEast St. LouisE St. LouisO'FallonCahokiaCentrevilleDupoNew BadenCaseyvilleSmithtonMadisonSt. Clair CountySt. ClairColumbiaWashington ParkWashington PkIllinoisMidwestUnited States of AmericaUnited StatesEast North CentralSt. Louis Metro AreaSt. LouisSummerfieldMillstadtSaugetBellevilleSwanseaSt. LiboryShilohCollinsvilleFreeburgEast CarondeletE CarondeletFairview HeightsFairview HtsLebanonFayettevilleMarissaPaderbornRentchler39.403085%39.403085%39.4%1,175135.135135%35.135135%35.1%260233.617747%33.617747%33.6%197331.603774%31.603774%31.6%603431.599229%31.599229%31.6%164531.463938%31.463938%31.5%2,491628.607918%28.607918%28.6%672728.157645%28.157645%28.2%593827.690696%27.690696%27.7%7,402927.439989%27.439989%27.4%7,9791027.315768%27.315768%27.3%3,9811126.740784%26.740784%26.7%1,3711226.147252%26.147252%26.1%1,0371324.627755%24.627755%24.6%8271424.607084%24.607084%24.6%1,0491524.287975%24.287975%24.3%9211624.261438%24.261438%24.3%9281724.119532%24.119532%24.1%64,05464.1k23.702541%23.702541%23.7%2,4161823.405311%23.405311%23.4%9431923.270328%23.270328%23.3%2,990,6292.99M23.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M23.005234%23.005234%23.0%10,741,74210.7M22.816573%22.816573%22.8%639,651640k22.736419%22.736419%22.7%1132022.679622%22.679622%22.7%8872122.413793%22.413793%22.4%522222.413349%22.413349%22.4%9,5772322.409270%22.409270%22.4%3,0752422.388060%22.388060%22.4%1202521.854406%21.854406%21.9%2,8522620.700060%20.700060%20.7%5,1452720.676234%20.676234%20.7%8502820.650096%20.650096%20.7%1082919.341392%19.341392%19.3%3,2483018.722820%18.722820%18.7%8183117.690418%17.690418%17.7%723215.726291%15.726291%15.7%262330.000000%0.000000%0.0%0340.000000%0.000000%0.0%035
Count number of children
# rank of place out of 35 by %

Age Cohorts by County Subdivision in St. Clair County

There are 22 county subdivisions in St. Clair County. This section compares all 22 of those to each other, St. Clair County, and other entities that contain or substantially overlap with St. Clair County.

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of St. Clair County, selected county subdivisions in St. Clair County, and entities that contain St. Clair County
0%10%20%30%Count#Stites TownshipStitesMascoutah TownshipMascoutahShiloh Valley TownshipShiloh VlyLenzburg TownshipLenzburgEast St. Louis TownshipE St. LouisCanteen TownshipCanteenCentreville TownshipCentrevilleO'Fallon TownshipO'FallonNew Athens TownshipNew AthensSt. Clair CountySt. ClairFayetteville TownshipFayettevilleSugar Loaf TownshipSugar LoafSmithton TownshipSmithtonIllinoisMidwestUnited States of AmericaUnited StatesEast North CentralSt. Louis Metro AreaSt. LouisBelleville TownshipBellevilleMillstadt TownshipMillstadtSt. Clair TownshipSt. ClairCaseyville TownshipCaseyvillePrairie Du Long TownshipPrairie Du LongFreeburg TownshipFreeburgLebanon TownshipLebanonStookey TownshipStookeyEngelmann TownshipEngelmannMarissa TownshipMarissa35.135135%35.135135%35.1%260130.232829%30.232829%30.2%2,597229.584081%29.584081%29.6%3,464328.114187%28.114187%28.1%325427.690696%27.690696%27.7%7,402527.606119%27.606119%27.6%2,725627.389917%27.389917%27.4%6,693726.090754%26.090754%26.1%6,871824.647335%24.647335%24.6%629924.119532%24.119532%24.1%64,05464.1k23.975295%23.975295%24.0%4271023.823738%23.823738%23.8%1,6761123.754699%23.754699%23.8%1,0111223.270328%23.270328%23.3%2,990,6292.99M23.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M23.005234%23.005234%23.0%10,741,74210.7M22.816573%22.816573%22.8%639,651640k22.413349%22.413349%22.4%9,5771322.098351%22.098351%22.1%1,4471422.054610%22.054610%22.1%7,8511521.737199%21.737199%21.7%6,8521619.981150%19.981150%20.0%4241719.140000%19.140000%19.1%9571818.591173%18.591173%18.6%8341917.490574%17.490574%17.5%1,6702013.513514%13.513514%13.5%1002112.571977%12.571977%12.6%26222
Count number of children
# rank of county subdivision out of 22 by %

Age Cohorts by County in the St. Louis Area

There are 15 counties in the St. Louis Area. This section compares St. Clair County to all of the counties in the St. Louis Area and to those entities that contain or substantially overlap with St. Clair County.

Children by County#50

Percentage of population aged 0 to 17 (%):
Scope: population of St. Clair County, selected other counties in the St. Louis Area, and entities that contain St. Clair County
0%5%10%15%20%25%Count#Lincoln CountyLincolnWarren CountyWarrenSt. Charles CountySt. CharlesSt. Clair CountySt. ClairJefferson CountyJeffersonFranklin CountyFranklinIllinoisMidwestUnited States of AmericaUnited StatesMonroe CountyMonroeEast North CentralSt. Louis Metro AreaSt. LouisSt. Louis CountySt. LouisMadison CountyMadisonMacoupin CountyMacoupinJersey CountyJerseyClinton CountyClintonCalhoun CountyCalhounSt. Louis CitySt. LouisBond CountyBond26.327230%26.327230%26.3%14,29214.3k124.460799%24.460799%24.5%8,143224.415568%24.415568%24.4%92,74492.7k324.119532%24.119532%24.1%64,05464.1k424.043281%24.043281%24.0%53,48553.5k523.540362%23.540362%23.5%24,02624.0k623.270328%23.270328%23.3%2,990,6292.99M23.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M23.045426%23.045426%23.0%7,767723.005234%23.005234%23.0%10,741,74210.7M22.816573%22.816573%22.8%639,651640k22.432138%22.432138%22.4%224,447224k822.230928%22.230928%22.2%59,30359.3k921.668603%21.668603%21.7%10,07210.1k1021.425070%21.425070%21.4%4,8081121.374610%21.374610%21.4%8,0921221.039903%21.039903%21.0%1,0441320.242382%20.242382%20.2%63,97264.0k1419.851783%19.851783%19.9%3,40215
Count number of children
# rank of county out of 15 by %

Age Cohorts by County in Illinois

There are 102 counties in Illinois. This section compares St. Clair County to the 50 most populous counties in Illinois and to those entities that contain or substantially overlap with St. Clair County. The least populous of the compared counties has a population of 29,301.

Children by County#59

Percentage of population aged 0 to 17 (%):
Scope: population of St. Clair County, selected other counties in Illinois, and entities that contain St. Clair County
0%10%20%Count#Kendall CountyKendallKane CountyKaneWill CountyWillBoone CountyBooneGrundy CountyGrundyLake CountyLakeMcHenry CountyMcHenryWoodford CountyWoodfordKankakee CountyKankakeeSt. Clair CountySt. ClairVermilion CountyVermilionWinnebago CountyWinnebagoPeoria CountyPeoriaEffingham CountyEffinghamDuPage CountyDuPageIllinoisMidwestUnited States of AmericaUnited StatesOgle CountyOgleTazewell CountyTazewellMonroe CountyMonroeEast North CentralSangamon CountySangamonMarion CountyMarionHenry CountyHenrySt. Louis Metro AreaSt. LouisWhiteside CountyWhitesideCook CountyCookAdams CountyAdamsRock Island CountyRock IslandMacon CountyMaconMadison CountyMadisonFranklin CountyFranklinMcLean CountyMcLeanBureau CountyBureauLaSalle CountyLaSalleJefferson CountyJeffersonDeKalb CountyDeKalbWilliamson CountyWilliamsonLivingston CountyLivingstonStephenson CountyStephensonMacoupin CountyMacoupinClinton CountyClintonChristian CountyChristianFulton CountyFultonLee CountyLeeMontgomery CountyMontgomeryKnox CountyKnoxMorgan CountyMorganRandolph CountyRandolphChampaign CountyChampaignLogan CountyLoganJackson CountyJacksonColes CountyColesMcDonough CountyMcDonough29.816718%29.816718%29.8%36,21336.2k127.145638%27.145638%27.1%142,953143k226.688338%26.688338%26.7%182,916183k326.487252%26.487252%26.5%14,21214.2k425.888990%25.888990%25.9%13,03213.0k525.491471%25.491471%25.5%179,177179k625.044369%25.044369%25.0%76,90776.9k724.995527%24.995527%25.0%9,779824.139632%24.139632%24.1%26,91426.9k924.119532%24.119532%24.1%64,05464.1k1023.988545%23.988545%24.0%19,09819.1k1123.939065%23.939065%23.9%69,15969.2k1223.908296%23.908296%23.9%44,66544.7k1323.786238%23.786238%23.8%8,1721423.510769%23.510769%23.5%218,771219k1523.270328%23.270328%23.3%2,990,6292.99M23.217458%23.217458%23.2%15,712,75815.7M23.108006%23.108006%23.1%73,612,43873.6M23.106046%23.106046%23.1%12,02312.0k1623.090103%23.090103%23.1%31,26431.3k1723.045426%23.045426%23.0%7,7671823.005234%23.005234%23.0%10,741,74210.7M22.937590%22.937590%22.9%45,56345.6k1922.909903%22.909903%22.9%8,8212022.869910%22.869910%22.9%11,36211.4k2122.816573%22.816573%22.8%639,651640k22.725921%22.725921%22.7%12,98913.0k2222.694997%22.694997%22.7%1,186,3981.19M2322.679950%22.679950%22.7%15,18415.2k2422.397909%22.397909%22.4%32,82132.8k2522.375558%22.375558%22.4%24,25624.3k2622.230928%22.230928%22.2%59,30359.3k2722.195783%22.195783%22.2%8,7682822.028929%22.028929%22.0%38,16638.2k2922.024126%22.024126%22.0%7,4493022.019029%22.019029%22.0%24,64724.6k3121.934948%21.934948%21.9%8,4503221.895882%21.895882%21.9%22,87222.9k3321.872401%21.872401%21.9%14,72814.7k3421.838618%21.838618%21.8%8,1413521.714236%21.714236%21.7%10,05010.1k3621.668603%21.668603%21.7%10,07210.1k3721.374610%21.374610%21.4%8,0923821.211048%21.211048%21.2%7,1883920.256887%20.256887%20.3%7,3024020.179734%20.179734%20.2%7,0064120.053923%20.053923%20.1%5,8764219.904545%19.904545%19.9%10,30110.3k4319.809776%19.809776%19.8%6,8944419.274913%19.274913%19.3%6,3484519.025773%19.025773%19.0%39,27339.3k4618.705567%18.705567%18.7%5,5784718.083057%18.083057%18.1%10,70310.7k4818.040983%18.040983%18.0%9,5264916.623066%16.623066%16.6%5,27450
Count number of children
# rank of county out of 50 by %

Age Cohorts by County in the United States

There are 3,142 counties in the United States. This section compares St. Clair County to the 50 most populous counties in the United States and to those entities that contain or substantially overlap with St. Clair County. The least populous of the compared counties has a population of 941,618.

Children by County#68

Percentage of population aged 0 to 17 (%):
Scope: population of St. Clair County, selected other counties in the United States, and entities that contain St. Clair County
0%10%20%Count#Fresno CountyFresnoSalt Lake CountySalt LakeSan Bernardino CountySan BernardinoHarris CountyHarrisTarrant CountyTarrantDallas CountyDallasRiverside CountyRiversideBexar CountyBexarBronx CountyBronxMaricopa CountyMaricopaWake CountyWakeMecklenburg CountyMecklenburgMilwaukee CountyMilwaukeeSacramento CountySacramentoWayne CountyWayneSt. Clair CountySt. ClairFairfax CountyFairfaxClark CountyClarkFranklin CountyFranklinFairfield CountyFairfieldMontgomery CountyMontgomeryContra Costa CountyContra CostaKings CountyKingsIllinoisMidwestHillsborough CountyHillsboroughUnited States of AmericaUnited StatesSanta Clara CountySanta ClaraTravis CountyTravisOrange CountyOrangeEast North CentralWestchester CountyWestchesterFulton CountyFultonLos Angeles CountyLos AngelesSt. Louis Metro AreaSt. LouisOrange CountyOrangeCook CountyCookSt. Louis CountySt. LouisSan Diego CountySan DiegoSuffolk CountySuffolkHennepin CountyHennepinPhiladelphia CountyPhiladelphiaNassau CountyNassauOakland CountyOaklandPima CountyPimaHonolulu CountyHonoluluBroward CountyBrowardCuyahoga CountyCuyahogaAlameda CountyAlamedaKing CountyKingMiami-Dade CountyMiami-DadeMiddlesex CountyMiddlesexQueens CountyQueensPalm Beach CountyPalm BeachAllegheny CountyAlleghenyNew York CountyNew York28.888866%28.888866%28.9%278,246278k128.329602%28.329602%28.3%309,506310k227.363518%27.363518%27.4%576,482576k327.228891%27.228891%27.2%1,207,3991.21M427.104397%27.104397%27.1%527,866528k526.929187%26.929187%26.9%676,745677k626.401700%26.401700%26.4%613,547614k726.219361%26.219361%26.2%487,339487k825.573137%25.573137%25.6%367,431367k925.043628%25.043628%25.0%1,023,9211.02M1024.990987%24.990987%25.0%249,554250k1124.574361%24.574361%24.6%248,637249k1224.468076%24.468076%24.5%233,745234k1324.396471%24.396471%24.4%360,897361k1424.179435%24.179435%24.2%427,394427k1524.119532%24.119532%24.1%64,05464.1k23.983328%23.983328%24.0%271,704272k1623.862053%23.862053%23.9%493,981494k1723.668593%23.668593%23.7%291,625292k1823.577077%23.577077%23.6%222,006222k1923.549379%23.549379%23.5%241,704242k2023.527315%23.527315%23.5%260,665261k2123.337305%23.337305%23.3%608,369608k2223.270328%23.270328%23.3%2,990,6292.99M23.217458%23.217458%23.2%15,712,75815.7M23.197227%23.197227%23.2%306,913307k2323.108006%23.108006%23.1%73,612,43873.6M23.087802%23.087802%23.1%435,218435k2423.030006%23.030006%23.0%264,425264k2523.024375%23.024375%23.0%721,172721k2623.005234%23.005234%23.0%10,741,74210.7M22.943185%22.943185%22.9%222,372222k2722.934276%22.934276%22.9%228,599229k2822.837323%22.837323%22.8%2,296,7852.30M2922.816573%22.816573%22.8%639,651640k22.760229%22.760229%22.8%285,881286k3022.694997%22.694997%22.7%1,186,3981.19M3122.432138%22.432138%22.4%224,447224k3222.366565%22.366565%22.4%727,664728k3322.324565%22.324565%22.3%334,451334k3422.273612%22.273612%22.3%269,347269k3522.168125%22.168125%22.2%345,809346k3622.141419%22.141419%22.1%300,415300k3722.121412%22.121412%22.1%273,247273k3821.856045%21.856045%21.9%219,290219k3921.601744%21.601744%21.6%213,209213k4021.598472%21.598472%21.6%402,548403k4121.569623%21.569623%21.6%271,499271k4221.443331%21.443331%21.4%344,212344k4320.896492%20.896492%20.9%434,553435k4420.604500%20.604500%20.6%548,990549k4520.568254%20.568254%20.6%322,430322k4620.470812%20.470812%20.5%472,878473k4719.641010%19.641010%19.6%274,730275k4819.092867%19.092867%19.1%234,911235k4914.639548%14.639548%14.6%239,355239k50
Count number of children
# rank of county 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.

More Topics to Explore

Demographics

Income

Education

More Maps to Explore

Cities:
Belleville, Centreville, Collinsville, Columbia, East St. Louis, Fairview Heights, Lebanon, Madison, Mascoutah, O'Fallon
Townships:
Belleville, Canteen, Caseyville, Centreville, East St. Louis, Engelmann, Fayetteville, Freeburg, Lebanon, Lenzburg, Marissa, Mascoutah, Millstadt, New Athens, O'Fallon, Prairie Du Long, Shiloh Valley, Smithton, St. Clair, Stites, Stookey, Sugar Loaf
Unincorporated Places:
Darmstadt, Floraville, Paderborn, Rentchler, Scott AFB
Villages:
Alorton, Brooklyn, Cahokia, Caseyville, Dupo, East Carondelet, Fairmont City, Fayetteville, Freeburg, Hecker, Lenzburg, Marissa, Millstadt, New Athens, New Baden, Sauget, Shiloh, Smithton, St. Libory, Summerfield, Swansea, Washington Park
ZIP Codes:
62059, 62060, 62201, 62203, 62204, 62205, 62206, 62207, 62208, 62220, 62221, 62223, 62225, 62226, 62232, 62234, 62236, 62239, 62240, 62243, 62254, 62255, 62257, 62258, 62260, 62264, 62265, 62269, 62282, 62285, 62289, 62293, 62294, 62298
Unified School Districts:
Brooklyn 188, Cahokia 187, Collinsville 10, Columbia 4, Dupo 196, East St. Louis 189, Lebanon 9, Marissa 40, Mascoutah 19, New Athens 60, Red Bud 132, Waterloo 5, Wesclin 3
Elementary School Districts:
Belle Valley 119, Belleville 118, Central 104, Freeburg 70, Grant 110, Harmony Emge 175, High Mount 116, Millstadt 160, O'Fallon 90, Pontiac-William Holliday 105, Shiloh Village 85, Signal Hill 181, Smithton 130, St. Libory 30, Whiteside 115, Wolf Branch 113
Secondary School Districts:
Belleville Township 201, Freeburg 77, O'Fallon Township 203
Congressional District:
IL-12
State Senate Districts:
IL-54, IL-56, IL-57, IL-58
State House Districts:
IL-108, IL-112, IL-113, IL-114, IL-116
Neighboring Cities:
St. Louis
Neighboring Counties:
Clinton, Madison, Monroe, Randolph, St. Louis, Washington
Nearby Counties:
Bond, Jackson, Jefferson, Jersey, Macoupin, Perry, Perry, St. Charles, St. Francois, Ste. Genevieve