ZIP code 54442 is officially located in the state of Wisconsin, primarily serving the city of Irma. It falls under the administrative jurisdiction of Lincoln County. When planning mail delivery, logistics routing, or demographic research, 54442 operates within the Central Time (CT) timezone and supports the 252 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 54442 ZIP Code Tabulation Area is approximately 18,452. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $54,442.