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ZIP codes in Kankakee County

22 ZIPs touch Kankakee County, Illinois. The blue dashed line is the county border; orange ZIPs reach into it.

22

ZIP codes

12

cross the county line

135,108

people in these ZIPs

102

counties in IL

Most people

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Kankakee County ZIP list

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Questions people actually ask

How many ZIP codes are in Kankakee County, Illinois?

22 ZIP codes reach into Kankakee County, including 1 PO Box or single-address ZIPs placed by the town they serve. 12 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Kankakee County has the most people?

60901 (Kankakee) has about 33,128 residents, the most of any ZIP touching Kankakee County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Kankakee County and another county?

Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Kankakee County. For one address, pin the exact spot on the ZIP finder to see its county.

Where does this list come from?

ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.

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Updated 2026-11-10 · Where the data comes from