ZIP code 57356 is officially located in the state of South dakota, primarily serving the city of Lake andes. It falls under the administrative jurisdiction of Charles Mix County. When planning mail delivery, logistics routing, or demographic research, 57356 operates within the Central Time (CT) timezone and supports the 835 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57356 ZIP Code Tabulation Area is approximately 35,135. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $92,356.