ZIP code 60003 is officially located in the state of Illinois, primarily serving the city of Antioch. It falls under the administrative jurisdiction of Lake County. When planning mail delivery, logistics routing, or demographic research, 60003 operates within the Central Time (CT) timezone and supports the 829 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 60003 ZIP Code Tabulation Area is approximately Data Not Available. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,003.