ZIP code 60420 is officially located in the state of Illinois, primarily serving the city of Dwight. It falls under the administrative jurisdiction of Livingston County. When planning mail delivery, logistics routing, or demographic research, 60420 operates within the Central Time (CT) timezone and supports the 231 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 60420 ZIP Code Tabulation Area is approximately 41,531. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $80,420.