ZIP code 48879 is officially located in the state of Michigan, primarily serving the city of Saint johns. It falls under the administrative jurisdiction of Clinton County. When planning mail delivery, logistics routing, or demographic research, 48879 operates within the Eastern Time (ET) timezone and supports the 630 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 48879 ZIP Code Tabulation Area is approximately 43,330. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $83,879.