ZIP code 54004 is officially located in the state of Wisconsin, primarily serving the city of Clayton. It falls under the administrative jurisdiction of Polk County. When planning mail delivery, logistics routing, or demographic research, 54004 operates within the Central Time (CT) timezone and supports the 781 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 54004 ZIP Code Tabulation Area is approximately 21,081. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $108,004.