Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — RANKINGS/IL/HIGHEST-AVERAGE-INCOME

ZIP Codes With the Highest Average Income in Illinois

What this measures. Total adjusted gross income divided by the number of tax returns filed. This is income per RETURN, not per person or per household — a return can be a single filer or a married couple. Source: IRS Statistics of Income, ZIP code data, data release 2026-10-12.

# ZIP City County Average AGI per return
1 60043 Kenilworth Cook $1,203,980
2 60022 Glencoe Cook $751,771
3 60606 Chicago Cook $662,009
4 60045 Lake Forest Lake $656,978
5 60093 Winnetka Cook $655,524
6 60603 Chicago Cook $556,994
7 60521 Hinsdale DuPage $514,033
8 60604 Chicago Cook $489,137
9 60523 Oak Brook DuPage $371,989
10 60091 Wilmette Cook $356,217
11 60035 Highland Park Lake $349,832
12 60611 Chicago Cook $344,608
13 60184 Wayne DuPage $344,251
14 60602 Chicago Cook $310,084
15 60614 Chicago Cook $300,277
16 60558 Western Springs Cook $300,033
17 60601 Chicago Cook $293,232
18 60305 River Forest Cook $289,547
19 60010 Barrington Cook $287,187
20 60015 Deerfield Lake $286,009
21 60044 Lake Bluff Lake $270,073
22 60514 Clarendon Hills DuPage $264,004
23 60026 Glenview Cook $247,400
24 60048 Libertyville Lake $236,207
25 60062 Northbrook Cook $228,701
26 60654 Chicago Cook $223,942
27 60068 Park Ridge Cook $222,529
28 60069 Lincolnshire Lake $217,020
29 60025 Glenview Cook $211,533
30 60047 Lake Zurich Lake $204,873
31 60175 Saint Charles Kane $203,415
32 60610 Chicago Cook $202,179
33 61729 Congerville Woodford $200,154
34 60540 Naperville DuPage $196,975
35 60126 Elmhurst DuPage $195,896
36 60137 Glen Ellyn DuPage $193,694
37 60527 Willowbrook DuPage $192,043
38 60425 Glenwood Cook $190,605
39 60201 Evanston Cook $188,962
40 60464 Palos Park Cook $187,934
41 60203 Evanston Cook $185,174
42 60607 Chicago Cook $184,685
43 61528 Edwards Peoria $183,783
44 60564 Naperville Will $180,839
45 60189 Wheaton DuPage $166,284
46 60515 Downers Grove DuPage $163,866
47 60657 Chicago Cook $162,543
48 60439 Lemont Cook $162,020
49 60302 Oak Park Cook $161,249
50 61525 Dunlap Peoria $161,064

Showing the top 50 of 1,129 ZIP codes in Illinois that have this figure and meet the threshold above. 60043 ranks 1st at $1,203,980, against $161,064 in 50th place.

Other rankings for Illinois

Cite this page

zipcodes.pro. “ZIP Codes With the Highest Average Income in Illinois.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/il/highest-average-income

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