ZIP code 98855 is officially located in the state of Washington, primarily serving the city of Tonasket. It falls under the administrative jurisdiction of Okanogan County. When planning mail delivery, logistics routing, or demographic research, 98855 operates within the Pacific Time (PT) timezone and supports the 306 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 98855 ZIP Code Tabulation Area is approximately 36,706. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $75,855.