ZIP code 45601 is officially located in the state of Ohio, primarily serving the city of Chillicothe. It falls under the administrative jurisdiction of Ross County. When planning mail delivery, logistics routing, or demographic research, 45601 operates within the Eastern Time (ET) timezone and supports the 373 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 45601 ZIP Code Tabulation Area is approximately 15,773. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $57,601.