St. Martin County ZIP Codes
Louisiana, United States · 4 codes
St. Martin County in Louisiana has 4 ZIP codes, from 70517 to 70582, serving 4 places.
ZIP codes in St. Martin
Frequently asked questions
What is the ZIP code of St. Martin?
St. Martin has 4 ZIP codes, from 70517 to 70582. The table lists the places each one serves.
How many places are listed in St. Martin County?
4 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.