ZIP code 42378 is officially located in the state of Kentucky, primarily serving the city of Whitesville. It falls under the administrative jurisdiction of Daviess County. When planning mail delivery, logistics routing, or demographic research, 42378 operates within the Central Time (CT) timezone and supports the 204 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 42378 ZIP Code Tabulation Area is approximately 35,204. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $66,378.