ZIP code 97603 is officially located in the state of Oregon, primarily serving the city of Klamath falls. It falls under the administrative jurisdiction of Klamath County. When planning mail delivery, logistics routing, or demographic research, 97603 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 97603 ZIP Code Tabulation Area is approximately 13,271. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,603.