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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, »race«, ethnicity).

NameStatusPopulation
Census
1990-04-01		Population
Census
2000-04-01		Population
Census
2010-04-01		Population
Estimate
2019-07-01
IllinoisState11,430,60212,419,92712,831,57212,671,821
AdamsCounty66,09068,26167,09765,435
AlexanderCounty10,6269,5838,2385,761
BondCounty14,99117,63617,76816,426
BooneCounty30,80641,78854,16753,544
BrownCounty5,8366,9526,9376,578
BureauCounty35,68835,49634,98032,628
CalhounCounty5,3225,0795,0894,739
CarrollCounty16,80516,67115,39414,305
CassCounty13,43713,69113,64112,147
ChampaignCounty173,025179,687201,081209,689
ChristianCounty34,41835,38034,79532,304
ClarkCounty15,92116,99516,33515,441
ClayCounty14,46014,41713,81513,184
ClintonCounty33,94435,53637,76237,562
ColesCounty51,64453,21053,87650,621
CookCounty5,105,0445,376,7415,195,0265,150,233
CrawfordCounty19,46420,46019,81818,667
CumberlandCounty10,67011,31111,04510,766
DeKalbCounty77,93288,941105,162104,897
De Witt (DeWitt)County16,51616,80216,55815,638
DouglasCounty19,46419,90919,97719,465
DuPageCounty781,689904,594916,741922,921
EdgarCounty19,59519,64318,57617,161
EdwardsCounty7,4406,9786,7216,395
EffinghamCounty31,70434,26734,24634,008
FayetteCounty20,89321,81022,14221,336
FordCounty14,27514,22714,08112,961
FranklinCounty40,31939,02139,99638,469
FultonCounty38,08038,24437,07134,340
GallatinCounty6,9096,4265,5874,828
GreeneCounty15,31714,76613,88612,969
GrundyCounty32,33737,52850,07951,054
HamiltonCounty8,4998,6138,4578,116
HancockCounty21,37320,17119,10417,708
HardinCounty5,1894,7934,3233,821
HendersonCounty8,0968,1767,3286,646
HenryCounty51,15951,03250,48348,913
IroquoisCounty30,78731,34029,71927,114
JacksonCounty61,06759,60760,20656,750
JasperCounty10,60910,1139,7019,610
JeffersonCounty37,02040,05138,82537,684
JerseyCounty20,53921,64923,01021,773
Jo DaviessCounty21,82122,29622,68121,235
JohnsonCounty11,34712,87712,57712,417
KaneCounty317,471404,508515,322532,403
KankakeeCounty96,255103,825113,450109,862
KendallCounty39,41354,539114,804128,990
KnoxCounty56,39355,84252,92649,699
LakeCounty516,418644,682703,400696,535
LaSalleCounty106,913111,599113,920108,669
LawrenceCounty15,97215,44916,90315,678
LeeCounty34,39236,06236,03834,096
LivingstonCounty39,30139,73438,94535,648
LoganCounty30,79831,19930,30528,618
MaconCounty117,206114,690110,777104,009
MacoupinCounty47,67949,00847,76344,926
MadisonCounty249,238259,019269,298262,966
MarionCounty41,56141,67839,43737,205
MarshallCounty12,84613,15912,64611,438
MasonCounty16,26916,03414,66613,359
MassacCounty14,75215,16315,43113,772
McDonoughCounty35,24432,90632,61629,682
McHenryCounty183,241259,524308,882307,774
McLeanCounty129,180150,384169,577171,517
MenardCounty11,16412,48312,70512,196
MercerCounty17,29016,94016,43415,437
MonroeCounty22,42227,62532,94934,637
MontgomeryCounty30,72830,64630,10528,414
MorganCounty36,39736,62735,54533,658
MoultrieCounty13,93014,28814,85214,501
OgleCounty45,95751,00153,49050,643
PeoriaCounty182,827183,466186,496179,179
PerryCounty21,41223,09122,34620,916
PiattCounty15,54816,38516,72516,344
PikeCounty17,57717,36216,43015,561
PopeCounty4,3734,3974,4744,177
PulaskiCounty7,5237,3336,1615,335
PutnamCounty5,7306,0776,0065,739
RandolphCounty34,58333,89733,48031,782
RichlandCounty16,54516,29116,23315,513
Rock IslandCounty148,723149,390147,541141,879
SalineCounty26,55126,75224,91523,491
SangamonCounty178,386188,974197,465194,672
SchuylerCounty7,4987,1817,5446,768
ScottCounty5,6445,5395,3554,951
ShelbyCounty22,26122,88422,35521,634
StarkCounty6,5346,3305,9925,342
St. ClairCounty262,852256,043270,078259,686
StephensonCounty48,05248,99547,70844,498
TazewellCounty123,692128,465135,392131,803
UnionCounty17,61918,31117,80616,653
VermilionCounty88,25783,92981,62575,758
WabashCounty13,11112,93211,94711,520
WarrenCounty19,18118,73617,70416,844
WashingtonCounty14,96515,15014,71613,887
WayneCounty17,24117,14916,76016,215
WhiteCounty16,52215,38114,66513,537
WhitesideCounty60,18660,66258,50155,175
WillCounty357,313502,211677,580690,743
WilliamsonCounty57,73361,30066,36566,597
WinnebagoCounty252,913278,441295,264282,572
WoodfordCounty32,65335,49138,65638,459
USA [United States of America]Federal Republic248,709,873281,421,906308,758,105328,239,523

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

Explanation: 2000 population in the boundaries of 2010. 2010 and 2019 population in the boundaries of 2019.

Further information about the population structure:

Gender (E 2019)
Males6,226,558
Females6,445,263
Age Groups (E 2019)
0-14 years2,322,679
15-64 years8,305,910
65+ years2,043,232
Age Distribution (E 2019)
0-9 years1,516,661
10-19 years1,628,648
20-29 years1,727,207
30-39 years1,710,821
40-49 years1,587,108
50-59 years1,654,462
60-69 years1,465,861
70-79 years872,882
80+ years508,171
»Race« (E 2019)
White9,726,915
Black/African American1,852,516
Indigenous75,500
Asian747,690
Pacific Islander8,385
2 or more260,815
Ethnicity (E 2019)
Hispanic or Latino2,219,882
Other10,451,939

See also:

USA: Counties