Franklin County ZIP Codes
Maine, United States · 20 codes
Franklin County in Maine has 20 ZIP codes, from 04225 to 04992, serving 20 places.
ZIP codes in Franklin
Frequently asked questions
What is the ZIP code of Franklin?
Franklin has 20 ZIP codes, from 04225 to 04992. The table lists the places each one serves.
How many places are listed in Franklin County?
20 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.