Warren County, Ohio
12 ZIP codes · 401.42 sq mi of land · FIPS 39165
| Population | 250,008 |
|---|---|
| State | Ohio |
| FIPS code | 39165 |
| Time zone | Eastern |
| Land area | 401.42 sq mi |
| Center (lat, long) | 39.4257, -84.1699 |
Area codes in this area
These are the area codes that most often serve Warren 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)
Mason · 35,509Lebanon · 21,501Springboro · 19,980FranklinHarveysburgKings MillsMainevilleOregoniaSouth LebanonWaynesvilleMorrowPleasant Plain
ZIP codes in Warren County
45005 Franklin45032 Harveysburg45034 Kings Mills45036 Lebanon45039 Maineville45040 Mason45054 Oregonia45065 South Lebanon45066 Springboro45068 Waynesville45152 Morrow45162 Pleasant Plain
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.