ZIP code 48890 is officially located in the state of Michigan, primarily serving the city of Sunfield. It falls under the administrative jurisdiction of Eaton County. When planning mail delivery, logistics routing, or demographic research, 48890 operates within the Eastern Time (ET) timezone and supports the 327 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 48890 ZIP Code Tabulation Area is approximately 38,827. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $70,890.