ZIP code 94515 is officially located in the state of California, primarily serving the city of Calistoga. It falls under the administrative jurisdiction of Napa County. When planning mail delivery, logistics routing, or demographic research, 94515 operates within the Pacific Time (PT) timezone and supports the 674 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 94515 ZIP Code Tabulation Area is approximately 32,874. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $95,515.