ZIP code 54455 is officially located in the state of Wisconsin, primarily serving the city of Mosinee. It falls under the administrative jurisdiction of Marathon County. When planning mail delivery, logistics routing, or demographic research, 54455 operates within the Central Time (CT) timezone and supports the 310 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 54455 ZIP Code Tabulation Area is approximately 6,610. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $75,455.