ZIP code 45146 is officially located in the state of Ohio, primarily serving the city of Martinsville. It falls under the administrative jurisdiction of Clinton County. When planning mail delivery, logistics routing, or demographic research, 45146 operates within the Eastern Time (ET) timezone and supports the 760 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 45146 ZIP Code Tabulation Area is approximately 43,460. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $122,146.