ZIP code 37369 is officially located in the state of Tennessee, primarily serving the city of Reliance. It falls under the administrative jurisdiction of Polk County. When planning mail delivery, logistics routing, or demographic research, 37369 operates within the Eastern Time (ET) timezone and supports the 559 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 37369 ZIP Code Tabulation Area is approximately 13,859. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $113,369.