ZIP code 37311 is officially located in the state of Tennessee, primarily serving the city of Cleveland. It falls under the administrative jurisdiction of Bradley County. When planning mail delivery, logistics routing, or demographic research, 37311 operates within the Eastern Time (ET) timezone and supports the 280 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 37311 ZIP Code Tabulation Area is approximately 20,580. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $127,311.