ZIP code 61274 is officially located in the state of Illinois, primarily serving the city of Osco. It falls under the administrative jurisdiction of Henry County. When planning mail delivery, logistics routing, or demographic research, 61274 operates within the Central Time (CT) timezone and supports the 251 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 61274 ZIP Code Tabulation Area is approximately 11,451. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $98,274.