There are 6 zip codes in Cass County, Illinois. The most populated is 62618, located in Beardstown. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
626187,318Beardstown
626912,355Virginia
626121,482Ashland
626111,114Arenzville
626271,023Chandlerville
6262290Bluff Springs

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