Boundary County ZIP Codes
Idaho, United States · 5 codes
Boundary County in Idaho has 5 ZIP codes, from 83805 to 83853, serving 5 places.
ZIP codes in Boundary
Frequently asked questions
What is the ZIP code of Boundary?
Boundary has 5 ZIP codes, from 83805 to 83853. The table lists the places each one serves.
How many places are listed in Boundary County?
5 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.