ZIP code 60021 is officially located in the state of Illinois, primarily serving the city of Fox river grove. It falls under the administrative jurisdiction of McHenry County. When planning mail delivery, logistics routing, or demographic research, 60021 operates within the Central Time (CT) timezone and supports the 556 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 60021 ZIP Code Tabulation Area is approximately 11,756. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $97,021.