Gretna zipcode
| City | Gretna |
| ZIP Code | 70056 |
| Type | Standard |
| State Code | LA |
| State | Louisiana |
ZIP code of Gretna is 70056. This place is located in Louisiana state in US. To send any postal service to Gretna, you must use 70056 zipcode.
The ZIP code 70056 is also used with 1 more city name of Louisiana.
- Terrytown, LA