Middletown zipcode
| City | Middletown |
| ZIP Code | 45042 |
| Type | Standard |
| State Code | OH |
| State | Ohio |
ZIP code of Middletown is 45042. This place is located in Ohio state in US. To send any postal service to Middletown, you must use 45042 zipcode.
You should avoid following 2 city names of Ohio to be used with the ZIP code 45042.
- Bethany, OH
- W Middletown, OH