ZIP code 57247 is officially located in the state of South dakota, primarily serving the city of Lake city. It falls under the administrative jurisdiction of Marshall County. When planning mail delivery, logistics routing, or demographic research, 57247 operates within the Central Time (CT) timezone and supports the 871 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57247 ZIP Code Tabulation Area is approximately 20,471. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $139,247.