ZIP code 98585 is officially located in the state of Washington, primarily serving the city of Silver creek. It falls under the administrative jurisdiction of Lewis County. When planning mail delivery, logistics routing, or demographic research, 98585 operates within the Pacific Time (PT) timezone and supports the 396 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 98585 ZIP Code Tabulation Area is approximately 40,296. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $85,585.