ZIP code 57227 is officially located in the state of South dakota, primarily serving the city of Corona. It falls under the administrative jurisdiction of Roberts County. When planning mail delivery, logistics routing, or demographic research, 57227 operates within the Central Time (CT) timezone and supports the 620 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57227 ZIP Code Tabulation Area is approximately 36,320. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $99,227.