There are 4 zip codes in Hamilton County, Illinois. The most populated is 62859, located in McLeansboro. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
628595,283McLeansboro
628281,359Dahlgren
62817573Broughton
62829128Dale

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