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Home/United States/Illinois

Illinois postal codes

Updated 2026-11-09
1,575 codes1,286 places5 digits

Popular places

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Chicago 84Springfield 35Peoria 29Rockford 14Aurora 10Bloomington 8Schaumburg 7Palatine 7East Saint Louis 7Naperville 6Joliet 6Evanston 6Decatur 6Champaign 6Carol Stream 6Elgin 5Belleville 5Oak Park 4Loves Park 4Des Plaines 4Waukegan 3Urbana 3Rock Island 3Quincy 3

Format

Format
5 digits
Example
90210
Codes
1,575
Places
1,286
Ad slot · 300×250

Codes

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600016000260004600056000660007600086000960010600116001260013600146001560016600176001860019600206002160022600256002660029600306003160033600346003560037600386003960040600416004260043600446004560046600476004860050600516005360055600566006060061

FAQ

How many codes does Illinois have?

1,575 unique codes.

Updated 2026-11-09. Attribution in Data & license.