ZIP code 49948 is officially located in the state of Michigan, primarily serving the city of Mass city. It falls under the administrative jurisdiction of Ontonagon County. When planning mail delivery, logistics routing, or demographic research, 49948 operates within the Central Time (CT) timezone and supports the 411 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 49948 ZIP Code Tabulation Area is approximately 38,911. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $56,948.