Greenback TN ZIP Code
Greenback city is located in Tennessee State, Loudon County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Greenback TN zip code by its streets and block numbers if we have some of the Greenback streets loaded in our website
Greenback Area Code is 865 and Time Zone is Eastern (GMT -05:00).
Greenback Zip Code - Tennessee
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Greenback City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Greenback ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Greenback, Tennessee.
The Greenback Zip Code is 37742.
If you want to send a mail to Greenback City, you should use the 37742 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Greenback ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 37742 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Greenback city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Tennessee.