ZIP code 61532 is officially located in the state of Illinois, primarily serving the city of Forest city. It falls under the administrative jurisdiction of Mason County. When planning mail delivery, logistics routing, or demographic research, 61532 operates within the Central Time (CT) timezone and supports the 496 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 61532 ZIP Code Tabulation Area is approximately 10,296. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $84,532.