Age and Sex in Illinois (State)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the states.
Scope: population of the United States, Illinois, and other states
Illinois
United States
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0% 0.5% 1.0% 1.5% Count % 85+ 80-84 75-79 70-74 67-69 65-66 62-64 60-61 55-59 50-54 45-49 40-44 35-39 30-34 25-29 22-24 21 20 18-19 15-17 10-14 5-9 0-4 241,714 242k 1.881% 1.88% 232,708 233k 1.811% 1.81% 291,897 292k 2.272% 2.27% 380,941 381k 2.965% 2.96% 282,345 282k 2.197% 2.20% 227,253 227k 1.769% 1.77% 395,912 396k 3.081% 3.08% 299,593 300k 2.332% 2.33% 825,663 826k 6.426% 6.43% 930,468 930k 7.242% 7.24% 912,019 912k 7.098% 7.10% 870,444 870k 6.775% 6.77% 840,654 841k 6.543% 6.54% 877,775 878k 6.832% 6.83% 900,353 900k 7.007% 7.01% 518,282 518k 4.034% 4.03% 184,513 185k 1.436% 1.44% 184,891 185k 1.439% 1.44% 364,713 365k 2.839% 2.84% 542,048 542k 4.219% 4.22% 871,816 872k 6.785% 6.79% 851,781 852k 6.629% 6.63% 820,771 821k 6.388% 6.39%

Detailed Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of the United States and Illinois
Female Male
United States
Illinois
Shaded bar tips show excess over facing bar.
0.5% 0.0% 0.5% Count % 85+ 80-84 75-79 70-74 67-69 65-66 62-64 60-61 55-59 50-54 45-49 40-44 35-39 30-34 25-29 22-24 21 20 18-19 15-17 10-14 5-9 0-4 -0.036529% -0.044520% -0.037523% -0.038776% -0.081049% 0.08% 0.036529% 0.037523% 0.036529% 0.04% 241,714 242k 1.881% 1.88% -0.144170% -0.073892% -0.149777% -0.071619% -0.218062% 0.22% 0.144170% 0.149777% 0.144170% 0.14% 232,708 233k 1.811% 1.81% -0.194283% -0.065799% -0.209114% -0.059325% -0.260082% 0.26% 0.194283% 0.209114% 0.194283% 0.19% 291,897 292k 2.272% 2.27% -0.266028% -0.060914% -0.287583% -0.051889% -0.326943% 0.33% 0.266028% 0.287583% 0.266028% 0.27% 380,941 381k 2.965% 2.96% -0.342337% -0.047821% -0.367659% -0.048421% -0.390158% 0.39% 0.342337% 0.367659% 0.342337% 0.34% 282,345 282k 2.197% 2.20% -0.415156% -0.054041% -0.446804% -0.047630% -0.469197% 0.47% 0.415156% 0.446804% 0.415156% 0.42% 227,253 227k 1.769% 1.77% -0.494510% -0.038105% -0.514830% -0.047356% -0.532615% 0.53% 0.494510% 0.514830% 0.494510% 0.49% 395,912 396k 3.081% 3.08% -0.561962% -0.041939% -0.572990% -0.043819% -0.603901% 0.60% 0.561962% 0.572990% 0.561962% 0.56% 299,593 300k 2.332% 2.33% -0.621370% -0.042484% -0.626806% -0.040996% -0.663854% 0.66% 0.621370% 0.626806% 0.621370% 0.62% 825,663 826k 6.426% 6.43% -0.710259% -0.027844% -0.705026% -0.027745% -0.738103% 0.74% 0.710259% 0.705026% 0.710259% 0.71% 930,468 930k 7.242% 7.24% -0.701483% -0.016679% -0.701360% -0.016692% -0.718162% 0.72% 0.701483% 0.701360% 0.701483% 0.70% 912,019 912k 7.098% 7.10% -0.672628% -0.009673% -0.670407% -0.007213% -0.682301% 0.68% 0.672628% 0.670407% 0.672628% 0.67% 870,444 870k 6.775% 6.77% -0.653635% -0.001289% -0.635762% -0.004484% -0.654924% 0.65% 0.653635% 0.635762% 0.653635% 0.65% 840,654 841k 6.543% 6.54% -0.682397% -0.655168% -0.682397% 0.68% 0.682397% 0.001546% 0.655168% 0.003660% 0.683943% 0.68% 877,775 878k 6.832% 6.83% -0.696763% -0.674668% -0.696763% 0.70% 0.696763% 0.007959% 0.674668% 0.014445% 0.704722% 0.70% 900,353 900k 7.007% 7.01% -0.660910% -0.665972% -0.660910% 0.66% 0.660910% 0.022773% 0.665972% 0.030472% 0.683683% 0.68% 518,282 518k 4.034% 4.03% -0.710749% -0.720406% -0.710749% 0.71% 0.710749% 0.014562% 0.720406% 0.036528% 0.725311% 0.73% 184,513 185k 1.436% 1.44% -0.696763% -0.746959% -0.696763% 0.70% 0.696763% 0.045476% 0.746959% 0.035327% 0.742239% 0.74% 184,891 185k 1.439% 1.44% -0.685198% -0.700969% -0.685198% 0.69% 0.685198% 0.048881% 0.700969% 0.037921% 0.734079% 0.73% 364,713 365k 2.839% 2.84% -0.685649% -0.663710% -0.685649% 0.69% 0.685649% 0.034951% 0.663710% 0.036111% 0.720600% 0.72% 542,048 542k 4.219% 4.22% -0.660681% -0.647196% -0.660681% 0.66% 0.660681% 0.035702% 0.647196% 0.032747% 0.696383% 0.70% 871,816 872k 6.785% 6.79% -0.653379% -0.642265% -0.653379% 0.65% 0.653379% 0.019120% 0.642265% 0.025690% 0.672499% 0.67% 851,781 852k 6.629% 6.63% -0.625641% -0.629457% -0.625641% 0.63% 0.625641% 0.026327% 0.629457% 0.028389% 0.651968% 0.65% 820,771 821k 6.388% 6.39%

Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of the United States and Illinois
Female Male
United States
Illinois
Shaded bar tips show excess over facing bar.
0.5% 0.0% 0.5% Count % Senior 2 Older Adult 3 Younger Adult 4 College 5 Children 6 -0.151783% -0.054636% -0.161926% -0.049308% -0.206419% 0.21% 0.151783% 0.161926% 0.151783% 0.15% 1,656,858 1.66M 12.895% 12.9% -0.645446% -0.027264% -0.648339% -0.027717% -0.672710% 0.67% 0.645446% 0.648339% 0.645446% 0.65% 4,234,099 4.23M 32.954% 33.0% -0.675175% -0.658240% -0.675175% 0.68% 0.675175% 0.006078% 0.658240% 0.008862% 0.681253% 0.68% 3,137,064 3.14M 24.416% 24.4% -0.694477% -0.717326% -0.694477% 0.69% 0.694477% 0.039450% 0.717326% 0.036924% 0.733927% 0.73% 734,117 734k 5.714% 5.71% -0.653081% -0.643651% -0.653081% 0.65% 0.653081% 0.028366% 0.643651% 0.030137% 0.681447% 0.68% 3,086,416 3.09M 24.022% 24.0%

Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of the United States and Illinois
More Females More Males
United States
Illinois
100% 50% 0% M:F F M 85+ 80-84 75-79 70-74 67-69 65-66 62-64 60-61 55-59 50-54 45-49 40-44 35-39 30-34 25-29 22-24 21 20 18-19 15-17 10-14 5-9 0-4 -121.873335% -103.337233% -121.873335% 121.9% 0.451 0.45 68.932% 68.9% 31.068% 31.1% -51.252983% -47.817213% -51.252983% 51.3% 0.661 0.66 60.199% 60.2% 39.801% 39.8% -33.867466% -28.369694% -33.867466% 33.9% 0.747 0.75 57.241% 57.2% 42.759% 42.8% -22.897650% -18.043199% -22.897650% 22.9% 0.814 0.81 55.136% 55.1% 44.864% 44.9% -13.969050% -13.170134% -13.969050% 14.0% 0.877 0.88 53.264% 53.3% 46.736% 46.7% -13.017069% -10.660116% -13.017069% 13.0% 0.885 0.88 53.055% 53.1% 46.945% 46.9% -7.705706% -9.198385% -7.705706% 7.7% 0.928 0.93 51.855% 51.9% 48.145% 48.1% -7.462883% -7.647386% -7.462883% 7.5% 0.931 0.93 51.799% 51.8% 48.201% 48.2% -6.837181% -6.540526% -6.837181% 6.8% 0.936 0.94 51.653% 51.7% 48.347% 48.3% -3.920314% -3.935342% -3.920314% 3.9% 0.962 0.96 50.961% 51.0% 49.039% 49.0% -2.377666% -2.379887% -2.377666% 2.4% 0.977 0.98 50.587% 50.6% 49.413% 49.4% -1.438043% -1.075906% -1.438043% 1.4% 0.986 0.99 50.357% 50.4% 49.643% 49.6% -0.197184% -0.705260% -0.197184% 0.2% 0.998 1.00 50.049% 50.0% 49.951% 50.0% 0.226510% 0.558702% 0.226510% 0.2% 1.002 1.00 49.943% 49.9% 50.057% 50.1% 1.142264% 2.141014% 1.142264% 1.1% 1.011 1.01 49.716% 49.7% 50.284% 50.3% 3.445704% 4.575547% 3.445704% 3.4% 1.034 1.03 49.153% 49.2% 50.847% 50.8% 2.048817% 5.070469% 2.048817% 2.0% 1.020 1.02 49.493% 49.5% 50.507% 50.5% 6.526741% 4.729505% 6.526741% 6.5% 1.065 1.07 48.420% 48.4% 51.580% 51.6% 7.133851% 5.409782% 7.133851% 7.1% 1.071 1.07 48.278% 48.3% 51.722% 51.7% 5.097469% 5.440780% 5.097469% 5.1% 1.051 1.05 48.757% 48.8% 51.243% 51.2% 5.403826% 5.059754% 5.403826% 5.4% 1.054 1.05 48.685% 48.7% 51.315% 51.3% 2.926273% 3.999840% 2.926273% 2.9% 1.029 1.03 49.279% 49.3% 50.721% 50.7% 4.207957% 4.510089% 4.207957% 4.2% 1.042 1.04 48.970% 49.0% 51.030% 51.0%

Map of Age Cohorts by County in Illinois

Children Age Cohorts by County#5

Percentage of population aged 0 to 17 (%):
15.4%18.5%21.6%24.7%27.8%31.0%

College Age Cohorts by County#6

Percentage of population aged 18 to 21 (%):
2.5%6.0%9.5%12.9%16.4%19.9%

20s Age Cohorts by County#7

Percentage of population aged 22 to 29 (%):
6.3%8.6%10.9%13.2%15.5%17.9%

30s Age Cohorts by County#8

Percentage of population aged 30 to 39 (%):
8.3%10.2%12.1%14.0%15.8%17.7%

40s Age Cohorts by County#9

Percentage of population aged 40 to 49 (%):
9.1%10.7%12.2%13.8%15.3%16.9%

50s Age Cohorts by County#10

Percentage of population aged 50 to 59 (%):
10.9%12.3%13.6%14.9%16.3%17.7%

60s Age Cohorts by County#11

Percentage of population aged 60 to 69 (%):
6.9%8.8%10.6%12.4%14.2%16.0%

70s Age Cohorts by County#12

Percentage of population aged 70 to 79 (%):
3.0%4.5%5.9%7.3%8.7%10.1%

80+ Age Cohorts by County#13

Percentage of population aged 80 and older (%):
1.6%2.8%4.0%5.1%6.3%7.6%
Road Data © OpenStreetMap

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Age Cohorts by Place in Illinois

There are 1,368 places in Illinois. This section compares the 50 most populous of those to each other, Illinois, and other entities that contain or substantially overlap with Illinois. The least populous of the compared places has a population of 37,421.

Children by Place#14

Percentage of population aged 0 to 17 (%):
Scope: population of Illinois, selected places in Illinois, and entities that contain Illinois
0% 10% 20% 30% Count # Plainfield Cicero Carpentersville Romeoville Aurora Hanover Park Joliet Waukegan Bolingbrook Elgin Naperville Berwyn Crystal Lake Bartlett Elmhurst Rockford Streamwood Palatine Oak Park Peoria Bloomington Hoffman Estates Hoffman Ests Illinois Glenview Midwest United States of America United States East North Central Tinley Park Park Ridge Carol Stream Buffalo Grove Wheaton Rock Island Downers Grove Mount Prospect Mt Prospect Moline Chicago Springfield Belleville Quincy Arlington Heights Arlington Hts Decatur Wheeling Oak Lawn Skokie Orland Park Schaumburg Evanston Lombard Des Plaines Normal DeKalb Champaign Urbana 35.077093% 35.077093% 35.1% 14,014 14.0k 1 33.552961% 33.552961% 33.6% 28,161 28.2k 2 32.748399% 32.748399% 32.7% 12,429 12.4k 3 31.123482% 31.123482% 31.1% 12,300 12.3k 4 30.984874% 30.984874% 31.0% 61,575 61.6k 5 29.950995% 29.950995% 30.0% 11,429 11.4k 6 29.906618% 29.906618% 29.9% 44,100 44.1k 7 29.508808% 29.508808% 29.5% 26,133 26.1k 8 29.222618% 29.222618% 29.2% 21,566 21.6k 9 29.221033% 29.221033% 29.2% 32,092 32.1k 10 28.233594% 28.233594% 28.2% 40,437 40.4k 11 27.895313% 27.895313% 27.9% 15,796 15.8k 12 27.823881% 27.823881% 27.8% 11,299 11.3k 13 27.655762% 27.655762% 27.7% 11,421 11.4k 14 26.543748% 26.543748% 26.5% 11,877 11.9k 15 26.255768% 26.255768% 26.3% 39,945 39.9k 16 25.654152% 25.654152% 25.7% 10,373 10.4k 17 25.133114% 25.133114% 25.1% 17,276 17.3k 18 24.833340% 24.833340% 24.8% 12,889 12.9k 19 24.818561% 24.818561% 24.8% 28,657 28.7k 20 24.294567% 24.294567% 24.3% 18,778 18.8k 21 24.287764% 24.287764% 24.3% 12,694 12.7k 22 24.021505% 24.021505% 24.0% 3,086,416 3.09M 23.823641% 23.823641% 23.8% 10,688 10.7k 23 23.782699% 23.782699% 23.8% 15,969,644 16.0M 23.713901% 23.713901% 23.7% 73,877,478 73.9M 23.670662% 23.670662% 23.7% 11,008,271 11.0M 23.641964% 23.641964% 23.6% 13,431 13.4k 24 23.588359% 23.588359% 23.6% 8,827 25 23.562672% 23.562672% 23.6% 9,418 26 23.445263% 23.445263% 23.4% 9,768 27 23.444455% 23.444455% 23.4% 12,483 12.5k 28 23.239581% 23.239581% 23.2% 9,056 29 23.112899% 23.112899% 23.1% 11,317 11.3k 30 23.080314% 23.080314% 23.1% 12,564 12.6k 31 22.803207% 22.803207% 22.8% 9,869 32 22.735700% 22.735700% 22.7% 615,251 615k 33 22.722864% 22.722864% 22.7% 26,471 26.5k 34 22.577024% 22.577024% 22.6% 9,856 35 22.340504% 22.340504% 22.3% 9,108 36 22.207651% 22.207651% 22.2% 16,765 16.8k 37 22.134190% 22.134190% 22.1% 16,818 16.8k 38 21.655545% 21.655545% 21.7% 8,178 39 21.640095% 21.640095% 21.6% 12,284 12.3k 40 20.516298% 20.516298% 20.5% 13,312 13.3k 41 20.316816% 20.316816% 20.3% 11,620 11.6k 42 20.313089% 20.313089% 20.3% 15,091 15.1k 43 20.088875% 20.088875% 20.1% 15,054 15.1k 44 19.732365% 19.732365% 19.7% 8,582 45 19.624716% 19.624716% 19.6% 11,494 11.5k 46 18.395919% 18.395919% 18.4% 9,881 47 18.393894% 18.393894% 18.4% 8,145 48 17.065609% 17.065609% 17.1% 13,981 14.0k 49 11.979769% 11.979769% 12.0% 4,974 50

Age Cohorts by Metro Area in Illinois

There are 33 metro areas that are fully or partially contained within Illinois (25 fully and 8 partially). This section compares all 33 of those to each other, Illinois, and other entities that contain or substantially overlap with Illinois.

Children by Metro Area#23

Percentage of population aged 0 to 17 (%):
Scope: population of Illinois, selected metro areas in Illinois, and entities that contain Illinois
0% 5% 10% 15% 20% 25% Count # Rockford Metro Area Rockford Area Kankakee Metro Area Kankakee Area Chicago, Naperville, and Elgin Metro Area Chicago Area Effingham Metro Area Effingham Danville Metro Area Danville Area Rochelle Metro Area Rochelle Area Illinois Peoria Metro Area Peoria Area Midwest United States of America United States East North Central St. Louis Metro Area St. Louis Springfield Metro Area Springfield Davenport, Moline, and Rock Island Metro Area Davenport Centralia Metro Area Centralia Sterling Metro Area Sterling Area Quincy Metro Area Quincy Area Ottawa and Peru Metro Area Ottawa Area Burlington Metro Area Burlington Decatur Metro Area Decatur Area Bloomington Metro Area Bloomington Freeport Metro Area Freeport Area Paducah Metro Area Paducah Area Cape Girardeau Metro Area Cape Girardeau Mount Vernon Metro Area Mount Vernon Taylorville Metro Area Taylorville Fort Madison and Keokuk Metro Area Fort Madison Pontiac Metro Area Pontiac Area Dixon Metro Area Dixon Area Jacksonville Metro Area Jacksonville Canton Metro Area Canton Area Galesburg Metro Area Galesburg Carbondale and Marion Metro Area Carbondale Champaign and Urbana Metro Area Champaign Lincoln Metro Area Lincoln Area Charleston and Mattoon Metro Area Charleston Macomb Metro Area Macomb Area 25.147646% 25.147646% 25.1% 87,376 87.4k 1 24.954200% 24.954200% 25.0% 28,196 28.2k 2 24.701826% 24.701826% 24.7% 2,343,831 2.34M 3 24.482115% 24.482115% 24.5% 8,391 4 24.317596% 24.317596% 24.3% 19,733 19.7k 5 24.222105% 24.222105% 24.2% 12,860 12.9k 6 24.021505% 24.021505% 24.0% 3,086,416 3.09M 23.807946% 23.807946% 23.8% 90,509 90.5k 7 23.782699% 23.782699% 23.8% 15,969,644 16.0M 23.713901% 23.713901% 23.7% 73,877,478 73.9M 23.670662% 23.670662% 23.7% 11,008,271 11.0M 23.515478% 23.515478% 23.5% 656,582 657k 8 23.442329% 23.442329% 23.4% 49,453 49.5k 9 23.435885% 23.435885% 23.4% 89,324 89.3k 10 23.309445% 23.309445% 23.3% 9,107 11 23.160791% 23.160791% 23.2% 13,468 13.5k 12 22.783632% 22.783632% 22.8% 17,622 17.6k 13 22.699199% 22.699199% 22.7% 34,915 34.9k 14 22.637775% 22.637775% 22.6% 10,750 10.8k 15 22.607970% 22.607970% 22.6% 24,928 24.9k 16 22.445686% 22.445686% 22.4% 42,142 42.1k 17 22.400930% 22.400930% 22.4% 10,599 10.6k 18 22.101357% 22.101357% 22.1% 21,801 21.8k 19 22.101127% 22.101127% 22.1% 21,374 21.4k 20 22.007274% 22.007274% 22.0% 8,532 21 21.901244% 21.901244% 21.9% 7,589 22 21.892417% 21.892417% 21.9% 13,512 13.5k 23 21.524026% 21.524026% 21.5% 8,327 24 21.167863% 21.167863% 21.2% 7,522 25 21.141187% 21.141187% 21.1% 8,607 26 20.652203% 20.652203% 20.7% 7,606 27 20.239794% 20.239794% 20.2% 10,635 10.6k 28 19.958788% 19.958788% 20.0% 25,280 25.3k 29 19.831874% 19.831874% 19.8% 46,216 46.2k 30 19.170229% 19.170229% 19.2% 5,785 31 19.120577% 19.120577% 19.1% 12,380 12.4k 32 16.015853% 16.015853% 16.0% 5,213 33