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ZIP Codes for CLARKSTON, Washington. Use our address lookup or code list to find the correct 5-digit or 9-digit (ZIP+4) code for your postal mails destination.
Jun 1, 2024 · 99403 is the only ZIP Code for Clarkston, WA. Enter an Address to find the ZIP+4: The ZIP+4 code is an extension of the five-digit ZIP code used by the USPS. The four extra digits are added after a hyphen to the standard five-digit ZIP code.
Interactive and printable 99403 ZIP code maps, population demographics, Clarkston WA real estate costs, rental prices, and home values.
ZIP Code 99403 is located in Clarkston Washington. Portions of 99403 are also in Clarkston Heights-Vineland and West Clarkston-Highland and Asotin. 99403 is primarily within Asotin County, with some portions in Garfield County. Regionally, 99403 is located in the Spokane Area.
The population of Clarkston was 7,161 at the 2020 census. Walla Walla Community College opened a branch campus in Clarkston that serves the surrounding area. Clarkston's ZIP code, 99403, is the highest numerically in the contiguous United States.
ZIP code 99403 is located in Clarkston, Washington. 99403 has a population of 19,548. In the 99403 ZIP Code there are 8,840 housing units with an avarage cost of $171,100.
Jun 1, 2024 · ZIP Code 99403 is located in the city of Clarkston, Washington and covers 143.492 square miles of land area. ZIP Codes cross county lines, and 99403 is primarily assigned to Asotin County. However, is also covers mailboxes located in Garfield County. According to the 2020 U.S. Census, there are 20,224 people in 8,521 households.
