ZIP code 95552 is officially located in the state of California, primarily serving the city of Mad river. It falls under the administrative jurisdiction of Trinity County. When planning mail delivery, logistics routing, or demographic research, 95552 operates within the Pacific Time (PT) timezone and supports the 257 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 95552 ZIP Code Tabulation Area is approximately 17,757. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $124,552.