ZIP code 90740 is officially located in the state of California, primarily serving the city of Seal beach. It falls under the administrative jurisdiction of Orange County. When planning mail delivery, logistics routing, or demographic research, 90740 operates within the Pacific Time (PT) timezone and supports the 855 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 90740 ZIP Code Tabulation Area is approximately 41,455. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $120,740.