ZIP code 50641 is officially located in the state of Iowa, primarily serving the city of Hazleton. It falls under the administrative jurisdiction of Buchanan County. When planning mail delivery, logistics routing, or demographic research, 50641 operates within the Central Time (CT) timezone and supports the 258 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 50641 ZIP Code Tabulation Area is approximately 31,758. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $137,641.