Loudon County ZIP Codes
Tennessee, United States · 5 codes
Loudon County in Tennessee has 5 ZIP codes, from 37742 to 37846, serving 5 places.
ZIP codes in Loudon
Frequently asked questions
What is the ZIP code of Loudon?
Loudon has 5 ZIP codes, from 37742 to 37846. The table lists the places each one serves.
How many places are listed in Loudon 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.