Illinois Demographics
Browse county and ZIP code data in the state of Illinois.
Total Population
12,757,634
Median Income
$78,433
Median Home Value
$239,100
Unemployment Rate
5.9%
Top 5 Counties by Income in Illinois
Top 5 Populated Counties in Illinois
Counties in Illinois
Adams County
Population: 65,583
Income: $63,767
Alexander County
Population: 5,261
Income: $40,365
Bond County
Population: 16,750
Income: $58,617
Boone County
Population: 53,459
Income: $80,502
Brown County
Population: 6,334
Income: $64,760
Bureau County
Population: 33,203
Income: $64,165
Calhoun County
Population: 4,472
Income: $88,059
Carroll County
Population: 15,594
Income: $61,539
Cass County
Population: 12,955
Income: $64,826
Champaign County
Population: 206,525
Income: $61,090
Christian County
Population: 33,893
Income: $56,933
Clark County
Population: 15,467
Income: $65,874
Clay County
Population: 13,248
Income: $58,028
Clinton County
Population: 36,998
Income: $78,054
Coles County
Population: 47,076
Income: $53,732
Cook County
Population: 5,225,367
Income: $78,304
Crawford County
Population: 18,729
Income: $64,163
Cumberland County
Population: 10,447
Income: $71,274
De Witt County
Population: 15,535
Income: $61,823
DeKalb County
Population: 100,686
Income: $68,617
Douglas County
Population: 19,714
Income: $67,177
DuPage County
Population: 930,559
Income: $107,035
Edgar County
Population: 16,852
Income: $56,687
Edwards County
Population: 6,182
Income: $60,784
Effingham County
Population: 34,594
Income: $73,181
Fayette County
Population: 21,464
Income: $51,962
Ford County
Population: 13,484
Income: $58,930
Franklin County
Population: 37,810
Income: $51,031
Fulton County
Population: 33,691
Income: $57,223
Gallatin County
Population: 4,967
Income: $51,868
Greene County
Population: 12,015
Income: $58,900
Grundy County
Population: 52,624
Income: $89,993
Hamilton County
Population: 8,008
Income: $60,574
Hancock County
Population: 17,582
Income: $61,026
Hardin County
Population: 3,665
Income: $53,026
Henderson County
Population: 6,374
Income: $64,946
Henry County
Population: 49,157
Income: $66,313
Iroquois County
Population: 27,043
Income: $62,866
Jackson County
Population: 53,176
Income: $44,847
Jasper County
Population: 9,295
Income: $67,429
Jefferson County
Population: 37,043
Income: $58,384
Jersey County
Population: 21,462
Income: $77,607
Jo Daviess County
Population: 21,942
Income: $67,729
Johnson County
Population: 13,313
Income: $63,295
Kane County
Population: 517,254
Income: $96,400
Kankakee County
Population: 107,421
Income: $65,489
Kendall County
Population: 132,795
Income: $106,358
Knox County
Population: 49,751
Income: $50,263
Lake County
Population: 713,159
Income: $104,553
LaSalle County
Population: 109,495
Income: $67,942
Lawrence County
Population: 15,302
Income: $55,811
Lee County
Population: 34,221
Income: $64,588
Livingston County
Population: 35,771
Income: $68,175
Logan County
Population: 28,027
Income: $62,547
Macon County
Population: 103,542
Income: $59,622
Macoupin County
Population: 44,907
Income: $64,706
Madison County
Population: 265,512
Income: $71,759
Marion County
Population: 37,543
Income: $59,099
Marshall County
Population: 11,740
Income: $64,940
Mason County
Population: 13,074
Income: $58,479
Massac County
Population: 14,135
Income: $57,365
McDonough County
Population: 27,370
Income: $48,904
McHenry County
Population: 311,133
Income: $100,101
McLean County
Population: 171,284
Income: $75,356
Menard County
Population: 12,284
Income: $84,846
Mercer County
Population: 15,692
Income: $67,028
Monroe County
Population: 34,905
Income: $100,685
Montgomery County
Population: 28,352
Income: $61,796
Morgan County
Population: 32,882
Income: $61,188
Moultrie County
Population: 14,531
Income: $72,833
Ogle County
Population: 51,672
Income: $75,782
Peoria County
Population: 181,186
Income: $63,409
Perry County
Population: 20,996
Income: $56,338
Piatt County
Population: 16,698
Income: $81,151
Pike County
Population: 14,776
Income: $55,514
Pope County
Population: 3,799
Income: $57,582
Pulaski County
Population: 5,177
Income: $41,038
Putnam County
Population: 5,628
Income: $75,726
Randolph County
Population: 30,413
Income: $63,860
Richland County
Population: 15,716
Income: $61,607
Rock Island County
Population: 143,819
Income: $64,435
Saline County
Population: 23,662
Income: $51,710
Sangamon County
Population: 196,122
Income: $71,653
Schuyler County
Population: 6,879
Income: $63,737
Scott County
Population: 4,899
Income: $70,500
Shelby County
Population: 21,042
Income: $65,585
St. Clair County
Population: 256,791
Income: $68,915
Stark County
Population: 5,395
Income: $58,125
Stephenson County
Population: 44,482
Income: $57,527
Tazewell County
Population: 131,276
Income: $74,606
Union County
Population: 17,122
Income: $54,090
Vermilion County
Population: 74,113
Income: $52,787
Wabash County
Population: 11,321
Income: $54,074
Warren County
Population: 16,760
Income: $62,700
Washington County
Population: 13,781
Income: $75,111
Wayne County
Population: 16,127
Income: $53,522
White County
Population: 13,834
Income: $54,605
Whiteside County
Population: 55,569
Income: $62,828
Will County
Population: 696,774
Income: $103,678
Williamson County
Population: 67,120
Income: $60,325
Winnebago County
Population: 284,591
Income: $61,738
Woodford County
Population: 38,414
Income: $80,093