ZIP code 61089 is officially located in the state of Illinois, primarily serving the city of Winslow. It falls under the administrative jurisdiction of Stephenson County. When planning mail delivery, logistics routing, or demographic research, 61089 operates within the Central Time (CT) timezone and supports the 312 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 61089 ZIP Code Tabulation Area is approximately 22,012. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $53,089.