ZIP code 48440 is officially located in the state of Michigan, primarily serving the city of Hadley. It falls under the administrative jurisdiction of Lapeer County. When planning mail delivery, logistics routing, or demographic research, 48440 operates within the Eastern Time (ET) timezone and supports the 711 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 48440 ZIP Code Tabulation Area is approximately 44,111. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $120,440.