ZIP code 94904 is officially located in the state of California, primarily serving the city of Kentfield. It falls under the administrative jurisdiction of Marin County. When planning mail delivery, logistics routing, or demographic research, 94904 operates within the Pacific Time (PT) timezone and supports the 617 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 94904 ZIP Code Tabulation Area is approximately 38,417. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $108,904.