ZIP code 57641 is officially located in the state of South dakota, primarily serving the city of Mc intosh. It falls under the administrative jurisdiction of Corson County. When planning mail delivery, logistics routing, or demographic research, 57641 operates within the Central Time (CT) timezone and supports the 643 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57641 ZIP Code Tabulation Area is approximately 17,443. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $137,641.