ZIP code 91913 is officially located in the state of California, primarily serving the city of Chula vista. It falls under the administrative jurisdiction of San Diego County. When planning mail delivery, logistics routing, or demographic research, 91913 operates within the Pacific Time (PT) timezone and supports the 592 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 91913 ZIP Code Tabulation Area is approximately 4,792. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $61,913.