Fallon County ZIP Codes
Montana, United States · 3 codes
Fallon County in Montana has 3 ZIP codes, from 59313 to 59354, serving 3 places.
ZIP codes in Fallon
Frequently asked questions
What is the ZIP code of Fallon?
Fallon has 3 ZIP codes, from 59313 to 59354. The table lists the places each one serves.
How many places are listed in Fallon 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.