ZIP Code 45312
Casstown · Miami, Ohio
45312 is the ZIP code of Casstown in Miami, Ohio, United States.
- ZIP Code
- 45312
- County
- Miami
- State
- Ohio
- Country
- United States
Place with ZIP code 45312
| Place | County | Location |
|---|---|---|
| Casstown | Miami | 40.072, -84.109 |
Near Columbus
The nearest major city is Columbus, about 95 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 45312?
Casstown.
Which county and state is 45312 in?
Miami, Ohio, United States.
What is the nearest major city to 45312?
Columbus, about 95 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.