ZIP code 57565 is officially located in the state of South dakota, primarily serving the city of Onida. It falls under the administrative jurisdiction of Sully County. When planning mail delivery, logistics routing, or demographic research, 57565 operates within the Central Time (CT) timezone and supports the 598 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57565 ZIP Code Tabulation Area is approximately Data Not Available. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $45,565.