ZIP code 49751 is officially located in the state of Michigan, primarily serving the city of Johannesburg. It falls under the administrative jurisdiction of Otsego County. When planning mail delivery, logistics routing, or demographic research, 49751 operates within the Eastern Time (ET) timezone and supports the 386 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 49751 ZIP Code Tabulation Area is approximately 36,786. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $107,751.