ZIP code 62021 is officially located in the state of Illinois, primarily serving the city of Dorsey. It falls under the administrative jurisdiction of Madison County. When planning mail delivery, logistics routing, or demographic research, 62021 operates within the Central Time (CT) timezone and supports the 294 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 62021 ZIP Code Tabulation Area is approximately 33,194. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $97,021.