ZIP code 94921 is officially located in the state of California, primarily serving the city of Belvedere. It falls under the administrative jurisdiction of Marin County. When planning mail delivery, logistics routing, or demographic research, 94921 operates within the Pacific Time (PT) timezone and supports the 519 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 94921 ZIP Code Tabulation Area is approximately Data Not Available. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $97,921.