ZIP code 98542 is officially located in the state of Washington, primarily serving the city of Ethel. It falls under the administrative jurisdiction of Lewis County. When planning mail delivery, logistics routing, or demographic research, 98542 operates within the Pacific Time (PT) timezone and supports the 624 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 98542 ZIP Code Tabulation Area is approximately 44,724. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $54,542.