ZIP code 57658 is officially located in the state of South dakota, primarily serving the city of Wakpala. It falls under the administrative jurisdiction of Corson County. When planning mail delivery, logistics routing, or demographic research, 57658 operates within the Central Time (CT) timezone and supports the 402 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57658 ZIP Code Tabulation Area is approximately 24,202. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $126,658.