ZIP code 49011 is officially located in the state of Michigan, primarily serving the city of Athens. It falls under the administrative jurisdiction of Calhoun County. When planning mail delivery, logistics routing, or demographic research, 49011 operates within the Central Time (CT) timezone and supports the 355 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 49011 ZIP Code Tabulation Area is approximately 33,255. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $127,011.