ZIP Code 99143 is located in the county of Whitman in the state of Washington. 99143 ZIP Code is spread between the coordinates of +46.7833507 Latitude and -117.83505226 Longitude. 99143 ZIP Code is part of the 509 area code. There are 2 postal offices in zip code 99143.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 99143. 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.