ZIP code 37330 is officially located in the state of Tennessee, primarily serving the city of Estill springs. It falls under the administrative jurisdiction of Franklin County. When planning mail delivery, logistics routing, or demographic research, 37330 operates within the Central Time (CT) timezone and supports the 480 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 37330 ZIP Code Tabulation Area is approximately 40,380. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $50,330.