Harper zipcode
| City | Harper |
| ZIP Code | 78631 |
| Type | Standard |
| State Code | TX |
| State | Texas |
ZIP code of Harper is 78631. This place is located in Texas state in US. To send any postal service to Harper, you must use 78631 zipcode.
You should avoid following 2 city names of Texas to be used with the ZIP code 78631.
- Knoxville, TX
- Noxville, TX