Grand Isle, LA ZIP Codes, Coordinates & Counties
Grand Isle, Louisiana has 1 ZIP code in Jefferson county. The approximate center of Grand Isle is 29.216, -90.028. Grand Isle has about 10,312 known street addresses.
ZIP codes in Grand Isle, LA
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 70358 | Jefferson | 29.216 | -90.028 |
Counties Grand Isle spans
Jefferson
Most common streets in Grand Isle
Highway 1, Central, Oak, Cypress, Willow, Cedar, Hebert, Bay, Sunset, Margot
Frequently asked questions
What ZIP codes are in Grand Isle, LA?
Grand Isle, Louisiana has 1 ZIP code, ranging from 70358 to 70358. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Grand Isle, LA in?
Grand Isle is in Jefferson county.
What are the latitude and longitude of Grand Isle, LA?
The approximate center of Grand Isle, Louisiana is latitude 29.216, longitude -90.028. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Grand Isle, LA have?
Grand Isle has 1 ZIP code.
How many addresses are in Grand Isle, LA?
Grand Isle, Louisiana has about 10,312 known street addresses in the sthan.io US address database.
What are the most common streets in Grand Isle, LA?
Some of the most common street names in Grand Isle are Highway 1, Central, Oak, Cypress, Willow, Cedar.
What cities are near Grand Isle, LA?
Cities near Grand Isle include Golden Meadow (11 mi), Galliano (22 mi), Port Sulphur (23 mi), Cut Off (27 mi), Empire (29 mi).
Cities near Grand Isle
Golden Meadow, LA (11 mi) Galliano, LA (22 mi) Port Sulphur, LA (23 mi) Cut Off, LA (27 mi) Empire, LA (29 mi) Pointe A La Hache, LA (29 mi) Larose, LA (32 mi) Montegut, LA (32 mi)
Need this for any US address, in code?
Get the ZIP code, county, and coordinates for any US address through the sthan.io API. Free 100 requests/month, no credit card required.
View the API →Last updated: June 2026 · Data: sthan.io US address database