Union County, Ohio
8 ZIP codes · 431.71 sq mi of land · FIPS 39159
| Population | 67,324 |
|---|---|
| State | Ohio |
| FIPS code | 39159 |
| Time zone | Eastern |
| Land area | 431.71 sq mi |
| Center (lat, long) | 40.2959, -83.3670 |
Area codes in this area
These are the area codes that most often serve Union County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
Marysville · 27,518BroadwayMagnetic SpringsMilford CenterRaymondUnionville CenterRichwoodWest Mansfield
ZIP codes in Union County
43007 Broadway43036 Magnetic Springs43040 Marysville43045 Milford Center43067 Raymond43077 Unionville Center43344 Richwood43358 West Mansfield
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.