ZIP code 91766 is officially located in the state of California, primarily serving the city of Phillips ranch. It falls under the administrative jurisdiction of Los Angeles County. When planning mail delivery, logistics routing, or demographic research, 91766 operates within the Pacific Time (PT) timezone and supports the 472 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 91766 ZIP Code Tabulation Area is approximately 25,672. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $62,766.