ZIP code 57771 is officially located in the state of South dakota, primarily serving the city of Pine ridge. It falls under the administrative jurisdiction of Shannon County. When planning mail delivery, logistics routing, or demographic research, 57771 operates within the Mountain Time (MT) timezone and supports the 277 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57771 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 $47,771.