ZIP code 98279 is officially located in the state of Washington, primarily serving the city of Olga. It falls under the administrative jurisdiction of San Juan County. When planning mail delivery, logistics routing, or demographic research, 98279 operates within the Pacific Time (PT) timezone and supports the 671 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 98279 ZIP Code Tabulation Area is approximately 19,571. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $83,279.