Below is a list of Ketchikan AK zip codes. For your research we have also included Ketchikan Area Code, Time Zone, UTC and the local Ketchikan Gateway County FIPS Code. Each Ketchikan Alaska zip code has a center Longitude / Latitude point (the Ketchikan center is -131.66299438477 / 55.347900390625). For your convenience we have also indicated if that zip code in Ketchikan observes Daylight Savings time.