ZIP code 57401 is officially located in the state of South dakota, primarily serving the city of Aberdeen. It falls under the administrative jurisdiction of Brown County. When planning mail delivery, logistics routing, or demographic research, 57401 operates within the Central Time (CT) timezone and supports the 749 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57401 ZIP Code Tabulation Area is approximately 11,249. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $57,401.