ZIP code 60423 is officially located in the state of Illinois, primarily serving the city of Frankfort. It falls under the administrative jurisdiction of Will County. When planning mail delivery, logistics routing, or demographic research, 60423 operates within the Central Time (CT) timezone and supports the 263 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 60423 ZIP Code Tabulation Area is approximately 14,963. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $131,423.