ZIP Code 99323 is located in the county of Walla Walla in the state of Washington. 99323 ZIP Code is spread between the coordinates of +46.2019943 Latitude and -118.97850327 Longitude. 99323 ZIP Code is part of the 509 area code. There is 1 postal office in zip code 99323.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 99323. 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.