ZIP code 62401 is officially located in the state of Illinois, primarily serving the city of Effingham. It falls under the administrative jurisdiction of Effingham County. When planning mail delivery, logistics routing, or demographic research, 62401 operates within the Central Time (CT) timezone and supports the 470 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 62401 ZIP Code Tabulation Area is approximately 15,870. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $57,401.