ZIP code 51645 is officially located in the state of Iowa, primarily serving the city of Imogene. It falls under the administrative jurisdiction of Fremont County. When planning mail delivery, logistics routing, or demographic research, 51645 operates within the Central Time (CT) timezone and supports the 784 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 51645 ZIP Code Tabulation Area is approximately 42,084. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $105,645.