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Cook

County in Illinois

Contents: Subdivision

The population development in Cook as well as related information and services (Wikipedia, Google, images).

The Details icon links to further information about a selected division including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).

NameStatusPopulation
Census
1990-04-01		Population
Census
2000-04-01		Population
Census
2010-04-01		Population
Census
2020-04-01		Population
Estimate
2023-07-01
CookCounty5,105,0675,376,7415,194,6755,275,5555,087,072
BarringtonTownship12,97714,09515,63916,51915,982
BerwynTownship45,53854,03056,65057,23354,414
BloomTownship95,02593,89290,97386,03282,374
BremenTownship107,860109,530110,069107,128102,413
CalumetTownship20,99922,37820,77018,60517,716
ChicagoCity2,783,4852,895,9642,695,6742,746,3522,664,452
CiceroTownship67,44185,99384,24185,26981,004
Elk GroveTownship87,79094,95692,77795,50091,444
EvanstonCity73,22474,26974,48378,10475,070
HanoverTownship62,32883,27499,544100,05296,034
LemontTownship11,53318,05121,11522,66522,245
LeydenTownship89,10394,69392,87993,12289,216
LyonsTownship104,992109,383111,807115,122110,569
MaineTownship129,010135,624135,752140,575134,328
New TrierTownship54,71256,65855,38157,37355,183
NilesTownship96,387102,576105,900112,405107,543
NorthfieldTownship78,18882,93985,08591,56288,131
Norwood ParkTownship25,64326,22826,37727,44026,216
Oak ParkTownship53,69652,51851,87854,57452,055
OrlandTownship69,58491,41897,53398,27194,913
PalatineTownship103,307112,706112,961114,399109,502
PalosTownship50,94653,40354,60756,84354,545
ProvisoTownship152,378155,685151,606151,215144,982
RichTownship61,39967,62976,65676,15372,931
River ForestTownship11,68011,64011,17611,72211,227
RiversideTownship15,20815,32415,58716,66415,861
SchaumburgTownship127,637134,109131,407134,868129,346
StickneyTownship37,28838,67840,77241,52039,705
ThorntonTownship175,860180,879169,378157,879150,526
WheelingTownship148,596155,975153,720157,464151,100
WorthTownship151,230152,244152,627152,925146,045
IllinoisState11,430,60212,419,29312,830,63212,813,46912,549,689

Source: U.S. Census Bureau.

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.

Further information about the population structure:

Gender (C 2020)
Males2,555,621
Females2,719,920
Age Groups (C 2020)
0-17 years1,103,139
18-64 years3,377,943
65+ years794,459
Age Distribution (C 2020)
80+ years190,231
70-79 years339,682
60-69 years585,781
50-59 years657,393
40-49 years673,972
30-39 years798,116
20-29 years797,271
10-19 years649,919
0-9 years583,176
Urbanization (C 2020)
Rural2,890
Urban5,272,651
»Race« (C 2020)
White2,345,983
Black/African American1,205,824
Indigenous56,894
Asian413,271
Pacific Islander1,864
Some other705,153
2 or more546,552
Ethnicity (C 2020)
Hispanic or Latino1,382,778
Other3,892,763