ZIP code 45242 is officially located in the state of Ohio, primarily serving the city of Sycamore. It falls under the administrative jurisdiction of Hamilton County. When planning mail delivery, logistics routing, or demographic research, 45242 operates within the Eastern Time (ET) timezone and supports the 561 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 45242 ZIP Code Tabulation Area is approximately 23,661. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $54,242.