ZIP code 66431 is officially located in the state of Kansas, primarily serving the city of Harveyville. It falls under the administrative jurisdiction of Wabaunsee County. When planning mail delivery, logistics routing, or demographic research, 66431 operates within the Central Time (CT) timezone and supports the 634 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 66431 ZIP Code Tabulation Area is approximately 9,034. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $67,431.