There are 6 zip codes in Clay County, Illinois. The most populated is 62839, located in Flora. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
628396,286Flora
628583,343Louisville
628241,865Clay City
628991,672Xenia
62434335Ingraham
6287946Sailor Springs
showing: 6 rows

Zip Codes in Clay County, Illinois by Population (2024)