ZIP Code 99603 is located in the county of Kenai Peninsula Borough in the state of Alaska. 99603 ZIP Code is spread between the coordinates of +59.6663236 Latitude and -151.47436144 Longitude. 99603 ZIP Code is part of the 907 area code. There are 2 postal offices in zip code 99603.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 99603. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.