ZIP code 57274 is officially located in the state of South dakota, primarily serving the city of Lily. It falls under the administrative jurisdiction of Day County. When planning mail delivery, logistics routing, or demographic research, 57274 operates within the Central Time (CT) timezone and supports the 314 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 57274 ZIP Code Tabulation Area is approximately 36,714. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $98,274.