ZIP code 45674 is officially located in the state of Ohio, primarily serving the city of Rio grande. It falls under the administrative jurisdiction of Gallia County. When planning mail delivery, logistics routing, or demographic research, 45674 operates within the Eastern Time (ET) timezone and supports the 769 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 45674 ZIP Code Tabulation Area is approximately 37,869. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $98,674.