ZIP code 94590 is officially located in the state of California, primarily serving the city of Vallejo. It falls under the administrative jurisdiction of Solano County. When planning mail delivery, logistics routing, or demographic research, 94590 operates within the Pacific Time (PT) timezone and supports the 460 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 94590 ZIP Code Tabulation Area is approximately 27,760. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $70,590.