ZIP code 54656 is officially located in the state of Wisconsin, primarily serving the city of Sparta. It falls under the administrative jurisdiction of Monroe County. When planning mail delivery, logistics routing, or demographic research, 54656 operates within the Central Time (CT) timezone and supports the 845 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 54656 ZIP Code Tabulation Area is approximately 44,245. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $92,656.