There are 16 zip codes in Montgomery County, Illinois. The most populated is 62056, located in Litchfield. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
620568,758Litchfield
620498,195Hillsboro
620753,168Nokomis
625601,408Raymond
620941,048Witt
62017943Coffeen
62051793Irving
62533788Farmersville
62032754Fillmore
62015592Butler
62572530Waggoner
62089528Taylor Springs
62538471Harvel
62091325Walshville
62077317Panama
6207673Ohlman

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