ZIP code 54139 is officially located in the state of Wisconsin, primarily serving the city of Stiles. It falls under the administrative jurisdiction of Oconto County. When planning mail delivery, logistics routing, or demographic research, 54139 operates within the Central Time (CT) timezone and supports the 492 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 54139 ZIP Code Tabulation Area is approximately 38,992. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $103,139.