ZIP code 45828 is officially located in the state of Ohio, primarily serving the city of Coldwater. It falls under the administrative jurisdiction of Mercer County. When planning mail delivery, logistics routing, or demographic research, 45828 operates within the Eastern Time (ET) timezone and supports the 723 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 45828 ZIP Code Tabulation Area is approximately 17,523. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $116,828.