ZIP code 94556 is officially located in the state of California, primarily serving the city of Moraga. It falls under the administrative jurisdiction of Contra Costa County. When planning mail delivery, logistics routing, or demographic research, 94556 operates within the Pacific Time (PT) timezone and supports the 692 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 94556 ZIP Code Tabulation Area is approximately 21,692. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $92,556.