ZIP code 51530 is officially located in the state of Iowa, primarily serving the city of Earling. It falls under the administrative jurisdiction of Shelby County. When planning mail delivery, logistics routing, or demographic research, 51530 operates within the Central Time (CT) timezone and supports the 583 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 51530 ZIP Code Tabulation Area is approximately 33,483. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $50,530.