ZIP code 45823 is officially located in the state of Ohio, primarily serving the city of Carthagena. It falls under the administrative jurisdiction of Mercer County. When planning mail delivery, logistics routing, or demographic research, 45823 operates within the Eastern Time (ET) timezone and supports the 721 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 45823 ZIP Code Tabulation Area is approximately Data Not Available. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $131,823.