ZIP code 37643 is officially located in the state of Tennessee, primarily serving the city of Elizabethton. It falls under the administrative jurisdiction of Carter County. When planning mail delivery, logistics routing, or demographic research, 37643 operates within the Eastern Time (ET) timezone and supports the 776 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 37643 ZIP Code Tabulation Area is approximately 44,176. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $71,643.