ZIP Code 37990 is located in the county of Knox in the state of Tennessee. 37990 ZIP Code is spread between the coordinates of +35.86 Latitude and -84.12 Longitude. 37990 ZIP Code is part of the 865 area code. There are 0 postal offices in zip code 37990.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 37990. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.