ZIP code 50565 is officially located in the state of Iowa, primarily serving the city of Marathon. It falls under the administrative jurisdiction of Buena Vista County. When planning mail delivery, logistics routing, or demographic research, 50565 operates within the Central Time (CT) timezone and supports the 595 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 50565 ZIP Code Tabulation Area is approximately 43,295. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $45,565.