ZIP code 37339 is officially located in the state of Tennessee, primarily serving the city of Gruetli laager. It falls under the administrative jurisdiction of Grundy County. When planning mail delivery, logistics routing, or demographic research, 37339 operates within the Central Time (CT) timezone and supports the 555 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 37339 ZIP Code Tabulation Area is approximately 25,055. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $103,339.