ZIP code 54129 is officially located in the state of Wisconsin, primarily serving the city of Hilbert. It falls under the administrative jurisdiction of Calumet County. When planning mail delivery, logistics routing, or demographic research, 54129 operates within the Central Time (CT) timezone and supports the 291 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 54129 ZIP Code Tabulation Area is approximately 21,991. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $133,129.