ZIP code 48860 is officially located in the state of Michigan, primarily serving the city of Muir. It falls under the administrative jurisdiction of Ionia County. When planning mail delivery, logistics routing, or demographic research, 48860 operates within the Eastern Time (ET) timezone and supports the 218 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 48860 ZIP Code Tabulation Area is approximately 31,718. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $60,860.