ZIP code 71866 is officially located in the state of Arkansas, primarily serving the city of Winthrop. It falls under the administrative jurisdiction of Little River County. When planning mail delivery, logistics routing, or demographic research, 71866 operates within the Central Time (CT) timezone and supports the 488 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 71866 ZIP Code Tabulation Area is approximately 13,088. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $62,866.