ZIP code 97864 is officially located in the state of Oregon, primarily serving the city of Monument. It falls under the administrative jurisdiction of Grant County. When planning mail delivery, logistics routing, or demographic research, 97864 operates within the Pacific Time (PT) timezone and supports the 453 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 97864 ZIP Code Tabulation Area is approximately 10,953. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $128,864.