ZIP code 57756 is officially located in the state of South dakota, primarily serving the city of Manderson. It falls under the administrative jurisdiction of Shannon County. When planning mail delivery, logistics routing, or demographic research, 57756 operates within the Mountain Time (MT) timezone and supports the 828 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57756 ZIP Code Tabulation Area is approximately 14,828. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $92,756.