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Illinois richest counties

Number of counties: 102
Median household income: 72,563
Richest county: Kendall County
Table of counties in Illinois sorted by household income from richest to poorest.
CountyMedian household income (dollars)
Kendall County101,816
DuPage County100,292
Lake County97,127
Will County95,751
McHenry County93,801
Monroe County92,950
Kane County88,935
Grundy County81,764
Menard County79,743
Piatt County77,559
Woodford County76,486
Calhoun County74,792
Boone County74,076
Clinton County72,468
Cook County72,121
Jersey County71,655
McLean County70,339
Tazewell County68,860
Ogle County67,534
Putnam County67,419
Moultrie County67,309
Washington County67,030
Madison County66,882
Cumberland County66,530
Sangamon County66,149
Clark County66,067
Effingham County65,590
DeKalb County64,019
Scott County63,555
Douglas County63,142
St. Clair County63,017
LaSalle County62,825
Lee County62,250
Henderson County62,202
Henry County62,097
Kankakee County61,664
Livingston County61,419
Jo Daviess County61,289
De Witt County60,401
Jasper County60,237
Marshall County60,231
Shelby County60,103
Mercer County59,972
Richland County59,963
Whiteside County59,812
Logan County59,809
Warren County59,673
Bureau County59,407
Brown County59,346
Montgomery County59,309
Rock Island County58,974
Adams County58,587
Johnson County58,502
Iroquois County58,481
Schuyler County58,447
Peoria County58,426
Cass County58,364
Hamilton County58,306
Macoupin County58,227
Hancock County58,188
Randolph County58,093
Winnebago County57,779
Massac County57,658
Champaign County56,939
Macon County55,954
Edwards County55,833
Morgan County55,261
Stark County55,109
Ford County55,011
Carroll County54,959
Crawford County54,942
Jefferson County54,692
Williamson County54,682
Greene County54,427
Mason County54,415
Clay County53,900
Stephenson County53,806
Bond County53,654
Fulton County53,441
Union County53,363
Marion County53,209
Christian County53,188
Perry County53,108
Gallatin County52,597
Lawrence County52,020
Hardin County51,738
Wayne County51,540
Pike County51,529
White County51,351
Edgar County50,843
Wabash County49,680
Vermilion County49,063
Coles County48,534
Pope County48,013
Franklin County47,751
Fayette County47,744
Saline County47,541
Knox County45,994
McDonough County45,704
Jackson County41,699
Pulaski County40,197
Alexander County39,871

What is the richest county in Illinois?

Kendall County is the richest county in Illinois with median household income of 101,816.

TOP-5 richest counties in Illinois:
  • Kendall County
  • DuPage County
  • Lake County
  • Will County
  • McHenry County