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Illinois

State in USA

Contents: Subdivision

The population development in Illinois 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
2022-07-01
IllinoisState11,430,60212,419,29312,830,63212,812,50812,582,032
AdamsCounty66,09068,27767,10365,73764,725
AlexanderCounty10,6269,5908,2385,2404,858
BondCounty14,99117,63317,76816,72516,566
BooneCounty30,80641,78654,16553,44853,154
BrownCounty5,8366,9506,9376,2446,330
BureauCounty35,68835,50334,97833,24432,828
CalhounCounty5,3225,0845,0894,4374,360
CarrollCounty16,80516,67415,38715,70215,529
CassCounty13,43713,69513,64213,04212,657
ChampaignCounty173,025179,669201,081205,865206,542
ChristianCounty34,41835,37234,80034,03233,436
ClarkCounty15,92117,00816,33515,45515,229
ClayCounty14,46014,56013,81513,28813,047
ClintonCounty33,94435,53537,76236,89936,909
ColesCounty51,64453,19653,87346,86346,334
CookCounty5,105,0675,376,7415,194,6755,275,5415,109,292
CrawfordCounty19,46420,45219,81718,67918,536
CumberlandCounty10,67011,25311,04810,45010,324
DeKalbCounty77,93288,969105,160100,420100,232
De Witt (DeWitt)County16,51616,79816,56115,51615,310
DouglasCounty19,46419,92219,98019,74019,755
DuPageCounty781,666904,161916,924932,877920,901
EdgarCounty19,59519,70418,57616,86616,433
EdwardsCounty7,4406,9716,7216,2456,071
EffinghamCounty31,70434,26434,24234,66834,325
FayetteCounty20,89321,80222,14021,48821,305
FordCounty14,27514,24114,08113,53413,249
FranklinCounty40,31939,01839,56137,80437,242
FultonCounty38,08038,25037,06933,60933,021
GallatinCounty6,9096,4455,5894,9464,855
GreeneCounty15,31714,76113,88611,98511,651
GrundyCounty32,33737,53550,06352,53353,041
HamiltonCounty8,4998,6218,4577,9937,984
HancockCounty21,37320,12119,10417,62017,244
HardinCounty5,1894,8004,3203,6493,597
HendersonCounty8,0968,2137,3316,3876,151
HenryCounty51,15951,02050,48649,28448,419
IroquoisCounty30,78731,33429,71827,07726,473
JacksonCounty61,06759,61260,21852,97452,617
JasperCounty10,60910,1179,6989,2879,212
JeffersonCounty37,02040,04538,82737,11336,400
JerseyCounty20,53921,66822,98521,51221,246
Jo DaviessCounty21,82122,28922,67822,03521,758
JohnsonCounty11,34712,87812,58213,30813,381
KaneCounty317,471404,119515,269516,522514,182
KankakeeCounty96,255103,833113,449107,502106,074
KendallCounty39,41354,544114,736131,869137,254
KnoxCounty56,39355,83652,91949,96748,640
LakeCounty516,418644,356703,462714,342709,150
La SalleCounty106,913111,509113,924109,658108,078
LawrenceCounty15,97215,45216,83315,28014,914
LeeCounty34,39236,06236,03134,14533,848
LivingstonCounty39,30139,67838,95035,81535,521
LoganCounty30,79831,18330,30527,98727,591
MaconCounty117,206114,706110,768103,998101,483
MacoupinCounty47,67949,01947,76544,96744,245
MadisonCounty249,238258,941269,282265,859263,864
MarionCounty41,56141,69139,43737,72936,914
MarshallCounty12,84613,18012,64011,74211,678
MasonCounty16,26916,03814,66613,08612,748
MassacCounty14,75215,16115,42914,16913,896
McDonoughCounty35,24432,91332,61227,23826,861
McHenryCounty183,241260,077308,760310,229311,747
McLeanCounty129,180150,433169,572170,954171,141
MenardCounty11,16412,48612,70512,29712,121
MercerCounty17,29016,95716,43415,69915,504
MonroeCounty22,42227,61932,95734,96235,033
MontgomeryCounty30,72830,65230,10428,28828,020
MorganCounty36,39736,61635,54732,91532,209
MoultrieCounty13,93014,28714,84614,52614,323
OgleCounty45,95751,03253,49751,78851,351
PeoriaCounty182,827183,433186,494181,830178,383
PerryCounty21,41223,09422,35020,94520,588
PiattCounty15,54816,36516,72916,67316,723
PikeCounty17,57717,38416,43014,73914,484
PopeCounty4,3734,4134,4703,7633,770
PulaskiCounty7,5237,3486,1615,1934,991
PutnamCounty5,7306,0866,0065,6375,572
RandolphCounty34,58333,89333,47630,16330,068
RichlandCounty16,54516,14916,23315,81315,435
Rock IslandCounty148,723149,374147,546144,672141,527
SalineCounty26,55126,73324,91323,76823,087
SangamonCounty178,386188,951197,465196,343194,534
SchuylerCounty7,4987,1897,5446,9026,746
ScottCounty5,6445,5375,3554,9494,790
ShelbyCounty22,26122,89322,36320,99020,761
StarkCounty6,5346,3325,9945,4005,345
St. ClairCounty262,852256,082270,056257,400252,671
StephensonCounty48,05248,97947,71144,63043,627
TazewellCounty123,692128,485135,394131,343129,911
UnionCounty17,61918,29317,80817,24416,767
VermilionCounty88,25783,91981,62574,18872,337
WabashCounty13,11112,93711,94711,36111,087
WarrenCounty19,18118,73517,70716,83516,354
WashingtonCounty14,96515,14814,71613,76113,643
WayneCounty17,24117,15116,76016,17915,872
WhiteCounty16,52215,37114,66513,87713,614
WhitesideCounty60,18660,65358,49855,69154,658
WillCounty357,313502,266677,560696,355696,757
WilliamsonCounty57,73361,29666,35767,15366,695
WinnebagoCounty252,913278,418295,266285,350282,188
WoodfordCounty32,65335,46938,66438,46738,128
USA [United States of America]Federal Republic248,709,873281,421,906308,745,538331,449,281333,287,557

Source: U.S. Census Bureau (web).

Explanation: All population totals refer to 2020 or 2022 boundaries.

Further information about the population structure:

Gender (C 2020)
Males6,283,130
Females6,529,378
Age Groups (C 2020)
0-17 years2,813,039
18-64 years7,905,484
65+ years2,093,985
Age Distribution (C 2020)
0-9 years1,469,287
10-19 years1,687,567
20-29 years1,715,581
30-39 years1,729,244
40-49 years1,609,617
50-59 years1,676,896
60-69 years1,521,606
70-79 years905,185
80+ years497,525
Urbanization (C 2020)
Rural1,674,918
Urban11,137,590
»Race« (C 2020)
White7,868,227
Black/African American1,808,271
Indigenous96,498
Asian754,878
Pacific Islander4,501
Some other1,135,149
2 or more1,144,984
Ethnicity (C 2020)
Hispanic or Latino2,337,410
Other10,475,098

See also:

USA: Counties