There are 5 zip codes in Hamilton County, Illinois. The most populated is 62859, located in Mc Leansboro. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
628595,283Mc Leansboro
628281,359Dahlgren
62817573Broughton
62860468Macedonia
62829128Dale
showing: 5 rows

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