Grand Isle ZIP code, Louisiana
The ZIP code for Grand Isle, LA is 70358, and its area code is 985.
- USPS city name
- 1 ZIP code
- Population
- 623
- Area code
- 985
- County
- Jefferson Parish
- State
- Louisiana
Grand Isle in numbers
About 623 people live in Grand Isle, in 353 households. The median owner-occupied home is valued at $269,500 (24% above the Louisiana median). The median age is 58.4; 15.4% of adults 25 and over hold a bachelor's degree or higher (27.0% across Louisiana).
| Population | 623 |
|---|---|
| Households | 353 |
| Median age | 58.4 |
| Median home value | $269,500 |
| Bachelor's degree or higher | 15.4% |
| Population density | 97 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Grand Isle town. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Grand Isle
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
70358 | Grand Isle , LA | Standard | 623 | — | $269,500 |
Map of Grand Isle ZIP codes
The ZIP codes of Grand Isle, LA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Grand Isle
The nearest larger towns are Golden Meadow (1,854 people, 19 mi), Galliano (5,906 people, 23 mi) and Port Sulphur (1,593 people, 27 mi).
More nearby: every ZIP code in Jefferson Parish · Louisiana ZIP codes
Cite this page
zipcodes.pro. “Grand Isle, LA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/la/grand-isle
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