General info

Part of:
United States of America
Entity:
Illinois
Capital:
Springfield
Population:
12,704,063 (2005-07-01)
Area:
149,998 sq.km.
ISO code:
us-il
Region:
Northern America

United States of America  : Illinois

Administrative units

countiescapitalarea (sq.km.)population
2000-04-01
census		population
2005-07-01
estimate		population
2008-07-01
estimate
source: Bureau of the Census, USA.
note: population figures are from the census of 2000 and the estimates are derived from the this census.
Adams CountyQuincy2,256.6068,27766,78566,897
Alexander CountyCairo654.089,5908,6338,152
Bond CountyGreenville991.1117,63318,13418,253
Boone CountyBelvidere730.2241,78649,55654,142
Brown CountyMount Sterling795.756,9506,6866,573
Bureau CountyPrinceton2,261.8435,50334,78934,933
Calhoun CountyHardin734.755,0845,1195,101
Carroll CountyMount Carroll1,206.3416,67416,01615,841
Cass CountyVirginia993.8613,69513,61513,574
Champaign CountyUrbana2,583.59179,669188,020193,636
Christian CountyTaylorville1,853.6835,37234,79734,501
Clark CountyMarshall1,307.6317,00816,83616,834
Clay CountyLouisville1,216.8814,56013,93213,767
Clinton CountyCarlyle1,304.0135,53536,01236,711
Coles CountyCharleston1,321.0853,19652,08652,172
Cook CountyChicago4,234.735,376,7415,288,7095,294,664
Crawford CountyRobinson1,154.4620,45219,77619,555
Cumberland CountyToledo898.7311,25310,85010,846
De Witt CountyClinton1,644.5616,79816,40716,354
DeKalb CountySycamore1,049.3388,96999,455106,321
Douglas CountyTuscola1,081.1119,92219,67819,448
DuPage CountyWheaton871.66904,161925,156930,528
Edgar CountyParis1,616.6219,70418,94718,692
Edwards CountyAlbion576.696,9716,6496,501
Effingham CountyEffingham1,242.9434,26434,40534,275
Fayette CountyVandalia1,878.6721,80221,14920,981
Ford CountyPaxton1,259.8214,24113,98414,050
Franklin CountyBenton1,117.3239,01839,39539,488
Fulton CountyLewistown2,285.9038,25037,13436,719
Gallatin CountyShawneetown850.586,4456,0775,982
Greene CountyCarrollton1,415.0114,76114,11013,644
Grundy CountyMorris1,114.7837,53543,45947,958
Hamilton CountyMcLeansboro1,128.828,6218,2818,267
Hancock CountyCarthage2,109.6520,12119,05018,691
Hardin CountyElizabethtown470.164,8004,6254,381
Henderson CountyOquawka1,023.368,2137,7847,477
Henry CountyCambridge2,138.2951,02049,86049,569
Iroquois CountyWatseka2,895.6831,33430,36830,285
Jackson CountyMurphysboro1,560.5559,61259,07658,264
Jasper CountyNewton1,289.8710,1179,7919,698
Jefferson CountyMount Vernon1,511.8040,04540,12340,083
Jersey CountyJerseyville976.4821,66822,18522,622
Jo Daviess CountyGalena1,602.4822,28922,27422,188
Johnson CountyVienna903.6012,87813,49313,731
Kane CountyGeneva1,357.36404,119477,214507,579
Kankakee CountyKankakee1,764.92103,833108,431112,524
Kendall CountyYorkville835.7154,54479,031103,460
Knox CountyGalesburg1,864.0155,83652,75251,857
Lake CountyOttawa2,973.41644,356694,862712,453
LaSalle CountyWaukegan3,542.97111,509111,197112,474
Lawrence CountyLawrenceville968.5015,45216,73616,681
Lee CountyDixon1,888.8536,06234,88535,129
Livingston CountyPontiac2,707.6539,67838,25537,681
Logan CountyLincoln1,603.2331,18330,21329,788
Macon CountyDecatur1,491.08114,706109,635108,328
Macoupin CountyCarlinville1,032.1649,01948,43748,138
Madison CountyEdwardsville1,459.12258,941264,825268,078
Marion CountySalem627.0941,69139,70339,505
Marshall CountyLacon1,528.1413,18012,93812,670
Mason CountyHavana1,582.8216,03815,45715,076
Massac CountyMetropolis3,072.4815,16115,22015,070
McDonough CountyMacomb1,516.1332,91332,89732,788
McHenry CountyWoodstock2,247.10260,077302,105318,641
McLean CountyBloomington1,917.50150,433159,349165,298
Menard CountyPetersburg816.8012,48612,39912,464
Mercer CountyAledo1,473.3916,95716,56816,481
Monroe CountyWaterloo1,030.0627,61931,29132,804
Montgomery CountyHillsboro1,838.2430,65229,96129,773
Morgan CountyJacksonville1,482.1536,61635,68435,251
Moultrie CountySullivan892.1714,28714,34314,374
Ogle CountyOregon1,976.8651,03253,92655,167
Peoria CountyPeoria1,634.00183,433182,040183,655
Perry CountyPinckneyville1,157.2323,09422,59222,484
Piatt CountyMonticello1,140.4516,36516,49016,505
Pike CountyPittsfield2,198.5617,38416,73516,519
Pope CountyGolconda970.314,4134,1104,079
Pulaski CountyMound City526.627,3486,6676,362
Putnam CountyHennepin446.106,0865,9806,003
Randolph CountyChester1,546.9033,89333,03432,641
Richland CountyOlney937.6016,14915,85115,532
Rock Island CountyRock Island1,168.50149,374146,532146,886
Saline CountyHarrisburg2,271.4526,73325,96925,944
Sangamon CountySpringfield1,143.19188,951192,577194,925
Schuyler CountyRushville654.677,1897,0686,916
Scott CountyWinchester1,989.245,5375,3365,181
Shelby CountyShelbyville1,745.5222,89322,03921,748
St. Clair CountyBelleville1,002.27256,082258,776262,291
Stark CountyToulon746.466,3326,0976,135
Stephenson CountyFreeport1,462.6248,97947,33046,367
Tazewell CountyPekin1,703.93128,485129,250131,524
Union CountyJonesboro1,093.3118,29318,11918,191
Vermilion CountyDanville2,336.5383,91981,74380,680
Wabash CountyMount Carmel589.9012,93712,41512,047
Warren CountyMonmouth1,406.8018,73517,70517,541
Washington CountyNashville1,461.0615,14814,82014,728
Wayne CountyFairfield1,853.2917,15116,65016,494
White CountyCarmi1,299.4015,37114,98314,671
Whiteside CountyMorrison1,805.2560,65359,21759,153
Will CountyJoliet2,199.91502,266632,173681,097
Williamson CountyMarion1,150.9461,29663,51864,628
Winnebago CountyRockford1,344.90278,418289,638300,252
Woodford CountyEureka1,405.6935,46937,02938,503
total 149,997.5612,419,29312,704,06312,901,563