ZIP code 48634 is officially located in the state of Michigan, primarily serving the city of Linwood. It falls under the administrative jurisdiction of Bay County. When planning mail delivery, logistics routing, or demographic research, 48634 operates within the Eastern Time (ET) timezone and supports the 504 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 48634 ZIP Code Tabulation Area is approximately 8,204. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $118,634.