There are 7 zip codes in Effingham County, Illinois. The most populated is 62401, located in Effingham. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
6240119,240Effingham
624114,070Altamont
624673,929Teutopolis
624242,475Dieterich
624431,849Mason
624731,143Watson
62461652Shumway

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