ZIP code 48131 is officially located in the state of Michigan, primarily serving the city of Dundee. It falls under the administrative jurisdiction of Monroe County. When planning mail delivery, logistics routing, or demographic research, 48131 operates within the Eastern Time (ET) timezone and supports the 608 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 48131 ZIP Code Tabulation Area is approximately 11,808. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $67,131.