ZIP code 48420 is officially located in the state of Michigan, primarily serving the city of Clio. It falls under the administrative jurisdiction of Genesee County. When planning mail delivery, logistics routing, or demographic research, 48420 operates within the Eastern Time (ET) timezone and supports the 637 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 48420 ZIP Code Tabulation Area is approximately 39,137. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $80,420.