ZIP code 50531 is officially located in the state of Iowa, primarily serving the city of Dolliver. It falls under the administrative jurisdiction of Emmet County. When planning mail delivery, logistics routing, or demographic research, 50531 operates within the Central Time (CT) timezone and supports the 361 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 50531 ZIP Code Tabulation Area is approximately 34,661. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $67,531.