Erwin TN ZIP Code
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Erwin city is located in Tennessee State, Unicoi County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Erwin TN zip code by its streets and block numbers if we have some of the Erwin streets loaded in our website
Erwin Area Code is 423 and Time Zone is Eastern (GMT -05:00).
Erwin Zip Code - Tennessee
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Erwin City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Erwin ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Erwin, Tennessee.
The Erwin Zip Code is 37650.
If you want to send a mail to Erwin City, you should use the 37650 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Erwin 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 37650 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Erwin 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.