ZIP CodesZIP codes in Miami County, Ohio
Miami County, Ohio has 14 ZIP codes in this list, from 45308 to 45383. They cover 13 places, among them Troy, Bradford, Casstown and Conover.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 45308 | Bradford | 50.9 | 40.129, -84.429 |
| 45312 | Casstown | 27.3 | 40.072, -84.109 |
| 45317 | Conover | 21.6 | 40.146, -84.028 |
| 45318 | Covington | 46.9 | 40.118, -84.350 |
| 45326 | Fletcher | 23.4 | 40.145, -84.101 |
| 45337 | Laura | 20.8 | 39.978, -84.399 |
| 45339 | Ludlow Falls | 14.0 | 39.987, -84.333 |
| 45356 | Piqua | 75.5 | 40.149, -84.253 |
| 45359 | Pleasant Hill | 13.8 | 40.053, -84.344 |
| 45361 | Potsdam | 0.4 | 39.964, -84.415 |
| 45371 | Tipp City | 51.2 | 39.942, -84.166 |
| 45373 | Troy | 87.7 | 40.037, -84.203 |
| 45374 | Troy | no area | 40.040, -84.230 |
| 45383 | West Milton | 23.5 | 39.953, -84.324 |
The ZIP code areas of Miami County add up to about 457 square miles of land (1,183 sq km) as the Census Bureau draws them. The largest is 45373 (Troy), with 87.7 square miles.
Places with more than one code here: Troy (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Bradford, OH 45308.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.