ZIP code 98604 is officially located in the state of Washington, primarily serving the city of Battle ground. It falls under the administrative jurisdiction of Clark County. When planning mail delivery, logistics routing, or demographic research, 98604 operates within the Pacific Time (PT) timezone and supports the 874 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 98604 ZIP Code Tabulation Area is approximately 35,874. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $108,604.