ZIP code 54171 is officially located in the state of Wisconsin, primarily serving the city of Sobieski. It falls under the administrative jurisdiction of Oconto County. When planning mail delivery, logistics routing, or demographic research, 54171 operates within the Central Time (CT) timezone and supports the 637 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 54171 ZIP Code Tabulation Area is approximately 11,137. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $47,171.