Which county in Illinois has the highest household income?

DuPage has the highest household income in Illinois, at $112,096.

What is the household income in DuPage?

DuPage is ranked #1 in Illinois for household income, at $112,096.

How is this household income ranking calculated?

Counties in Illinois are ranked by median household income (Census ACS 5-Year, 2020-2024), highest first. Values describe the county, not an individual property. Source vintage is shown on the page.

Counties With the Highest Household Income in Illinois (2026)

Highest counties for household income in Illinois

Top 25 of 102 counties with data.

Ranked by median household income (Census ACS 5-Year, 2020-2024), highest first.

Highest counties for household income in Illinois

Rank	County	Value
01	DuPage$112,096 County page
02	Kendall$111,601 County page
03	Lake$110,416 County page
04	Will$109,984 County page
05	McHenry$104,802 County page
06	Kane$103,163 County page
07	Monroe$102,880 County page
08	Piatt$94,811 County page
09	Calhoun$93,203 County page
10	Grundy$92,235 County page
11	Woodford$91,483 County page
12	Clinton$86,588 County page
13	Boone$84,571 County page
14	Cook$83,498 County page
15	Menard$82,176 County page
16	Ogle$82,132 County page
17	Effingham$80,404 County page
18	Jersey$80,361 County page
19	McLean$79,905 County page
20	Washington$78,224 County page
21	Tazewell$77,982 County page
22	Douglas$77,320 County page
23	Madison$75,793 County page
24	Putnam$75,590 County page
25	Sangamon$75,357 County page

How this ranking works

This page ranks Illinois counties by median household income, sorted so the highest places appear first. Click any county to see its housing, schools, crime, and demographics in detail.

For household income, a higher value is generally more favorable, so the top of the list is the highest. Want to weigh household income against schools, taxes, commute, and more at once? Use the live map to build a custom match.

Data comes from public sources. Source attribution and the exact data vintage are shown above and on the full map of median household income.

Frequently asked questions

Which county in Illinois has the highest household income?: DuPage has the highest household income in Illinois, at $112,096.
What is the household income in DuPage?: DuPage is ranked #1 in Illinois for household income, at $112,096.
How is this household income ranking calculated?: Counties in Illinois are ranked by median household income (Census ACS 5-Year, 2020-2024), highest first. Values describe the county, not an individual property. Source vintage is shown on the page.