There are 10 zip codes in Marion County, Illinois. The most populated is 62801, located in Centralia. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
6280119,976Centralia
6288110,995Salem
628702,232Odin
628822,162Sandoval
628492,039Iuka
628541,582Kinmundy
628751,235Patoka
62853998Kell
62807832Alma
62892190Vernon

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