ZIP Code 99203 is located in the county of Spokane in the state of Washington. 99203 ZIP Code is spread between the coordinates of +47.6294329 Latitude and -117.40357617 Longitude. 99203 ZIP Code is part of the 509 area code. There are 0 postal offices in zip code 99203.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 99203. 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.