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Illinois (USA)

State

The population development of Illinois.

NameStatusPopulation
Census
2000-04-01		Population
Census
2010-04-01		Population
Census
2020-04-01		 
IllinoisState12,419,29312,830,63212,812,508
USA [United States of America]Federal Republic281,424,600308,758,105331,449,281

Contents: Urban Areas

The population development of the urban areas in Illinois.

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

Name StatusState(s)Population
Census
2000-04-01		Population
Census
2010-04-01		Population
Census
2020-04-01		 
AltonUrban AreaIllinois84,65583,89079,260
AnnaUrban AreaIllinois6,8246,0786,068
BeardstownUrban AreaIllinois6,1336,5306,262
BeloitUrban AreaWisconsin / Illinois56,46263,83563,073
BentonUrban AreaIllinois7,9027,7787,491
Bloomington - NormalUrban AreaIllinois112,415132,600134,100
BreeseUrban AreaIllinois......4,637
BurlingtonUrban AreaIowa / Illinois30,49529,56928,447
ByronUrban AreaIllinois......5,625
CantonUrban AreaIllinois......13,177
Cape GirardeauUrban AreaMissouri / Illinois46,96852,90055,546
Carbondale (incl. Murphysboro)Urban AreaIllinois......31,488
CarlinvilleUrban AreaIllinois6,2295,9535,602
CarmiUrban AreaIllinois5,6375,5685,067
CentraliaUrban AreaIllinois......15,301
ChampaignUrban AreaIllinois123,938145,361147,452
CharlestonUrban AreaIllinois......17,415
ChesterUrban AreaIllinois......6,338
ChicagoUrban AreaIllinois / Indiana8,337,3008,608,2088,671,746
ClintonUrban AreaIllinois......7,323
Clinton - FultonUrban AreaIowa / Illinois33,43132,33231,126
Coal City - BraidwoodUrban AreaIllinois......15,837
DanvilleUrban AreaIllinois......40,044
DavenportUrban AreaIowa / Illinois273,975280,051285,211
DecaturUrban AreaIllinois96,45493,86386,287
DeKalbUrban AreaIllinois55,80568,54564,736
DixonUrban AreaIllinois17,58516,85815,987
DubuqueUrban AreaIowa / Illinois65,25167,81870,332
Du QuoinUrban AreaIllinois6,7296,4675,933
EffinghamUrban AreaIllinois13,99513,80013,990
ElburnUrban AreaIllinois......6,395
EurekaUrban AreaIllinois5,2115,5735,401
FairfieldUrban AreaIllinois5,2775,0394,766
FloraUrban AreaIllinois4,9534,8724,793
Fort MadisonUrban AreaIowa / Illinois11,63810,84810,278
FreeportUrban AreaIllinois27,15125,98024,135
GalesburgUrban AreaIllinois37,57736,00133,847
GeneseoUrban AreaIllinois6,4596,5316,435
GenoaUrban AreaIllinois......5,484
GillespieUrban AreaIllinois5,5085,3775,037
GreenvilleUrban AreaIllinois7,0396,9766,765
HampshireUrban AreaIllinois2,5914,6195,699
HarrisburgUrban AreaIllinois......8,283
HarvardUrban AreaIllinois8,5759,9409,376
HighlandUrban AreaIllinois......10,267
HillsboroUrban AreaIllinois5,6107,2616,880
HoopestonUrban AreaIllinois5,8725,1164,812
JacksonvilleUrban AreaIllinois23,51222,66921,003
JerseyvilleUrban AreaIllinois8,4148,9898,641
KankakeeUrban AreaIllinois......66,530
KeokukUrban AreaIowa / Illinois13,93913,41112,351
KewaneeUrban AreaIllinois12,86712,85712,542
Lake HolidayUrban AreaIllinois...7,0727,313
LawrencevilleUrban AreaIllinois......4,632
LincolnUrban AreaIllinois......13,990
LitchfieldUrban AreaIllinois6,9396,9566,350
MacombUrban AreaIllinois......15,656
MahometUrban AreaIllinois8,39511,04411,922
ManhattanUrban AreaIllinois......7,826
MantenoUrban AreaIllinois......10,437
MarengoUrban AreaIllinois6,8547,7317,509
Marion - HerrinUrban AreaIllinois......39,391
MarseillesUrban AreaIllinois6,6024,8774,660
MascoutahUrban AreaIllinois...7,3688,528
MattoonUrban AreaIllinois19,25518,97817,111
McHenry Northwest - Wonder LakeUrban AreaIllinois......5,758
MendotaUrban AreaIllinois7,1427,1956,918
MetropolisUrban AreaIllinois......5,925
MonmouthUrban AreaIllinois10,1239,6549,189
MonticelloUrban AreaIllinois5,1375,4105,985
MorrisUrban AreaIllinois13,92715,66815,740
Mount CarmelUrban AreaIllinois7,8287,3006,963
Mount VernonUrban AreaIllinois17,47216,00815,288
OlneyUrban AreaIllinois8,7179,1778,642
OttawaUrban AreaIllinois20,23520,61220,122
PaducahUrban AreaKentucky / Illinois48,03548,79150,833
PanaUrban AreaIllinois......5,309
ParisUrban AreaIllinois9,3768,9538,316
PaxtonUrban AreaIllinois4,8024,9164,528
PeoriaUrban AreaIllinois259,437266,921259,781
Peru - LaSalleUrban AreaIllinois28,69732,04829,763
PontiacUrban AreaIllinois......11,078
PrincetonUrban AreaIllinois7,5558,0437,979
QuincyUrban AreaIllinois45,32645,22843,427
RantoulUrban AreaIllinois14,47214,07113,654
RobinsonUrban AreaIllinois......6,134
RochelleUrban AreaIllinois11,30611,34211,013
RockfordUrban AreaIllinois270,414296,863276,443
Round Lake Beach - McHenry - GrayslakeUrban AreaIllinois / Wisconsin......261,835
SalemUrban AreaIllinois......7,153
ShelbyvilleUrban AreaIllinois5,1244,9744,872
SpringfieldUrban AreaIllinois153,516161,316159,265
StauntonUrban AreaIllinois......4,866
SterlingUrban AreaIllinois30,59528,82727,602
St. LouisUrban AreaMissouri / Illinois2,086,7462,150,7062,156,323
StreatorUrban AreaIllinois18,44717,79716,209
SullivanUrban AreaIllinois4,5414,5674,414
TaylorvilleUrban AreaIllinois......11,525
TuscolaUrban AreaIllinois4,6364,7914,942
Twin LakesUrban AreaWisconsin / Illinois......12,603
VandaliaUrban AreaIllinois7,8097,3098,110
WaterlooUrban AreaIllinois7,4199,6049,933
WatsekaUrban AreaIllinois5,5905,0554,671
West FrankfortUrban AreaIllinois......7,935
WilmingtonUrban AreaIllinois......6,388
WoodstockUrban AreaIllinois20,21925,30825,298

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

Explanation: Urban areas are defined every 10 years using the previous census results; no later official population estimates are available.