Port Isabel zipcode
| City | Port Isabel |
| ZIP Code | 78578 |
| Type | Standard |
| State Code | TX |
| State | Texas |
ZIP code of Port Isabel is 78578. This place is located in Texas state in US. To send any postal service to Port Isabel, you must use 78578 zipcode.
The ZIP code 78578 is also used with 3 more city names of Texas.
- Laguna Heights, TX
- Laguna Hts, TX
- Laguna Vista, TX
You should avoid following 3 city names of Texas to be used with the ZIP code 78578.
- Bahia Mar, TX
- Isabel, TX
- Pt Isabel, TX