Miami County, Ohio
11 ZIP codes · 406.58 sq mi of land · FIPS 39109
| Population | 110,296 |
|---|---|
| State | Ohio |
| FIPS code | 39109 |
| Time zone | Eastern |
| Land area | 406.58 sq mi |
| Center (lat, long) | 40.0533, -84.2284 |
Area codes in this area
These are the area codes that most often serve Miami 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)
Troy · 26,842Piqua · 20,646CasstownCovingtonFletcherLauraLudlow FallsPleasant HillPotsdamTipp CityWest Milton
ZIP codes in Miami County
45312 Casstown45318 Covington45326 Fletcher45337 Laura45339 Ludlow Falls45356 Piqua45359 Pleasant Hill45361 Potsdam45371 Tipp City45373 Troy45383 West Milton
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.