ZIP code 51244 is officially located in the state of Iowa, primarily serving the city of Matlock. It falls under the administrative jurisdiction of Sioux County. When planning mail delivery, logistics routing, or demographic research, 51244 operates within the Central Time (CT) timezone and supports the 455 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 51244 ZIP Code Tabulation Area is approximately 14,455. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $88,244.