ZIP code 61567 is officially located in the state of Illinois, primarily serving the city of Topeka. It falls under the administrative jurisdiction of Mason County. When planning mail delivery, logistics routing, or demographic research, 61567 operates within the Central Time (CT) timezone and supports the 475 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 61567 ZIP Code Tabulation Area is approximately 5,375. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $79,567.