ZIP code 51440 is officially located in the state of Iowa, primarily serving the city of Dedham. It falls under the administrative jurisdiction of Carroll County. When planning mail delivery, logistics routing, or demographic research, 51440 operates within the Central Time (CT) timezone and supports the 298 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 51440 ZIP Code Tabulation Area is approximately 38,798. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $120,440.