Ketchikan Gateway County ZIP Codes
Alaska, United States · 3 codes
Ketchikan Gateway County in Alaska has 3 ZIP codes, from 99901 to 99950, serving 3 places.
ZIP codes in Ketchikan Gateway
Frequently asked questions
What is the ZIP code of Ketchikan Gateway?
Ketchikan Gateway has 3 ZIP codes, from 99901 to 99950. The table lists the places each one serves.
How many places are listed in Ketchikan Gateway 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.