ZIP code 57325 is officially located in the state of South dakota, primarily serving the city of Chamberlain. It falls under the administrative jurisdiction of Brule County. When planning mail delivery, logistics routing, or demographic research, 57325 operates within the Central Time (CT) timezone and supports the 476 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57325 ZIP Code Tabulation Area is approximately 17,976. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $65,325.