There are 12 zip codes in Jefferson County, Illinois. The most populated is 62864, located in Mount Vernon. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
6286423,253Mount Vernon
628462,026Ina
628981,955Woodlawn
628141,782Bluford
628301,338Dix
628721,112Opdyke
628891,111Texico
628161,104Bonnie
628101,032Belle Rive
62893927Walnut Hill
62894841Waltonville
62883594Scheller

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