ZIP code 98155 is officially located in the state of Washington, primarily serving the city of Lk forest park. It falls under the administrative jurisdiction of King County. When planning mail delivery, logistics routing, or demographic research, 98155 operates within the Pacific Time (PT) timezone and supports the 877 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 98155 ZIP Code Tabulation Area is approximately 39,377. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $75,155.