ZIP code 54978 is officially located in the state of Wisconsin, primarily serving the city of Tilleda. It falls under the administrative jurisdiction of Shawano County. When planning mail delivery, logistics routing, or demographic research, 54978 operates within the Central Time (CT) timezone and supports the 545 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 54978 ZIP Code Tabulation Area is approximately 40,445. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $66,978.