Lamar County ZIP Codes
Mississippi, United States · 3 codes
Lamar County in Mississippi has 3 ZIP codes, from 39455 to 39482, serving 3 places.
ZIP codes in Lamar
Frequently asked questions
What is the ZIP code of Lamar?
Lamar has 3 ZIP codes, from 39455 to 39482. The table lists the places each one serves.
How many places are listed in Lamar County?
3 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.