Heiskell TN ZIP Code
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Heiskell city is located in Tennessee State, Knox County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Heiskell TN zip code by its streets and block numbers if we have some of the Heiskell streets loaded in our website
Heiskell Area Code is 865 and Time Zone is Eastern (GMT -05:00).
Heiskell Zip Code - Tennessee
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Heiskell City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Heiskell ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Heiskell, Tennessee.
The Heiskell Zip Code is 37754.
If you want to send a mail to Heiskell City, you should use the 37754 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Heiskell 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 37754 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Heiskell 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.