ZIP code 45640 is officially located in the state of Ohio, primarily serving the city of Jackson. It falls under the administrative jurisdiction of Jackson County. When planning mail delivery, logistics routing, or demographic research, 45640 operates within the Eastern Time (ET) timezone and supports the 459 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 45640 ZIP Code Tabulation Area is approximately 20,759. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $120,640.