ZIP code 97838 is officially located in the state of Oregon, primarily serving the city of Hermiston. It falls under the administrative jurisdiction of Umatilla County. When planning mail delivery, logistics routing, or demographic research, 97838 operates within the Pacific Time (PT) timezone and supports the 301 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 97838 ZIP Code Tabulation Area is approximately 31,801. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $86,838.