ZIP Code 99170 is located in the county of Whitman in the state of Washington. 99170 ZIP Code is spread between the coordinates of +47.2423679 Latitude and -117.38998430 Longitude. 99170 ZIP Code is part of the 509 area code. There are 2 postal offices in zip code 99170.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 99170. 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.