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What are the richest counties in Illinois?

DuPage County ($112,096), Kendall County ($111,601) and Lake County ($110,416) had the highest median household income in Illinois in the 2020–24 survey.

Data as of 2024 · updated

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All 102 ranked Illinois counties

Illinois counties ranked by median household income
RankCountyMedian household income 2020–24Change since 2016–20Residents
1DuPage County$112,096+18.1%934,298
2Kendall County$111,601+15.2%145,470
3Lake County$110,416+19.2%719,339
4Will County$109,984+21.1%712,253
5McHenry County$104,802+16.4%317,751
6Kane County$103,163+23.7%525,757
7Monroe County$102,880+14.8%34,840
8Piatt County$94,811+28.7%16,791
9Calhoun County$93,203+39.9%4,300
10Grundy County$92,235+21.7%54,052
11Woodford County$91,483+22.3%38,111
12Clinton County$86,588+28.9%37,128
13Boone County$84,571+20.1%53,568
14Cook County$83,498+23.0%5,194,625
15Menard County$82,176+6.0%11,863
16Ogle County$82,132+29.1%51,399
17Effingham County$80,404+34.2%34,519
18Jersey County$80,361+18.4%21,160
19McLean County$79,905+17.4%171,419
20Washington County$78,224+21.5%13,564
21Tazewell County$77,982+17.8%130,049
22Douglas County$77,320+29.7%19,880
23Madison County$75,793+18.3%263,110
24Putnam County$75,590+16.8%5,619
25Sangamon County$75,357+22.0%194,170
26Jasper County$74,755+33.7%9,032
27Mercer County$74,182+29.7%15,229
28Jo Daviess County$73,993+24.9%21,594
29St. Clair County$73,854+28.5%250,708
30Livingston County$73,790+25.8%35,057
31Cumberland County$73,327+23.7%10,208
32LaSalle County$73,045+21.6%107,773
33Clark County$72,927+22.6%15,114
34Shelby County$72,095+21.9%20,576
35Henry County$71,911+19.9%48,095
36Moultrie County$71,784+12.1%14,371
37De Witt County$71,678+24.2%15,118
38Crawford County$71,674+40.6%18,648
39Marshall County$71,585+24.9%11,473
40Kankakee County$71,281+20.1%105,525
41Macoupin County$70,805+25.8%43,748
42DeKalb County$70,724+13.4%101,835
43Lee County$70,292+17.2%32,914
44Bureau County$69,257+24.7%32,510
45Randolph County$68,131+23.2%29,921
46Cass County$68,125+26.4%12,463
47Brown County$67,917+11.9%6,401
48Whiteside County$67,500+18.1%54,121
49Warren County$67,385+24.1%16,222
50Rock Island County$67,159+20.0%141,869
51Scott County$66,705+12.4%4,866
52Logan County$66,358+14.2%27,182
53Morgan County$66,306+25.1%32,515
54Iroquois County$66,255+21.7%26,150
55Adams County$66,220+20.3%64,267
56Bond County$65,959+23.1%16,959
57Schuyler County$65,948+28.4%6,657
58Hancock County$65,865+18.0%16,803
59Winnebago County$65,837+19.0%283,674
60Hamilton County$65,746+17.5%7,859
61Williamson County$65,604+26.0%67,225
62Massac County$65,116+27.2%13,502
63Peoria County$65,108+16.8%178,553
64Stephenson County$64,043+26.9%43,220
65Champaign County$63,683+18.1%209,972
66Montgomery County$63,620+15.9%28,076
67Jefferson County$63,118+22.2%36,147
68Stark County$62,878+16.8%5,319
69Mason County$62,845+23.5%12,411
70Macon County$62,666+16.6%99,300
71Christian County$62,611+20.1%33,443
72Johnson County$62,528+12.9%13,363
73Richland County$62,455+13.5%15,219
74Ford County$62,439+23.4%13,216
75Henderson County$62,227+11.6%5,984
76Greene County$62,192+20.2%11,313
77Perry County$62,118+20.3%20,160
78Marion County$61,240+22.7%36,382
79Fayette County$60,944+33.5%20,790
80Carroll County$60,758+15.0%15,419
81Fulton County$60,599+16.0%32,901
82Edwards County$60,519+12.5%5,898
83Clay County$60,417+15.8%12,793
84Pope County$60,050+39.2%3,672
85Edgar County$59,941+23.5%16,323
86Pike County$59,777+28.3%14,231
87Gallatin County$59,219+37.4%4,616
88Wabash County$57,086+16.8%10,907
89Knox County$57,030+28.3%47,767
90Vermilion County$56,877+21.4%71,259
91Franklin County$56,740+29.9%36,916
92Coles County$56,478+21.7%46,607
93Union County$55,728+7.9%16,656
94Wayne County$55,521+10.6%15,882
95Lawrence County$55,324+4.2%13,790
96White County$54,813+13.5%13,250
97Hardin County$54,271+6.7%3,588
98Saline County$53,117+20.9%22,772
99McDonough County$52,795+21.1%25,916
100Jackson County$48,763+22.9%52,501
101Alexander County$47,043+35.5%4,570
102Pulaski County$42,463+13.8%4,820

How this is ranked

Median household income from the Census Bureau's American Community Survey 5-year estimates (2020–24). Survey estimates carry margins of error, so counties a few hundred dollars apart may not really differ. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, American Community Survey 5-year estimates. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in Illinois has the highest median household income?

DuPage County: $112,096, ahead of Kendall County ($111,601) and Lake County ($110,416), of 102 Illinois counties ranked.

How is this ranking calculated?

Median household income from the Census Bureau's American Community Survey 5-year estimates (2020–24). Survey estimates carry margins of error, so counties a few hundred dollars apart may not really differ. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

More county rankings for Illinois

Median household income in other states

Across the U.S.