ZIP code 97638 is officially located in the state of Oregon, primarily serving the city of Silver lake. It falls under the administrative jurisdiction of Lake County. When planning mail delivery, logistics routing, or demographic research, 97638 operates within the Pacific Time (PT) timezone and supports the 451 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 97638 ZIP Code Tabulation Area is approximately 33,351. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $86,638.