Isabella County, Michigan Zip Codes by Population (2024)

The most populated Zip Code in Isabella County, Michigan is 48858, located in Mount Pleasant. * 2024 populations estimated based on the latest ACS 5-year data.

Zip Code
City
Population
48858Mount Pleasant43,036
48883Shepherd6,692
48893Weidman5,274
49310Blanchard2,952
48859Mount Pleasant2,395
48878Rosebush1,510
48896Winn268