City · Louisiana · United States
Grand Isle, LA — ZIP codes
1 ZIP code · Jefferson Parish County
- City
- Grand Isle
- County
- Jefferson Parish
- State
- Louisiana
- Country
- United States
- Postal code
- 70358Single source
- Coordinates
- 29.2297, -90.0088 View on OpenStreetMap
- Area code
- 985
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 70358 | Grand Isle | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Last generated : 2026-08-21. Report an error.