Birchwood TN ZIP Code
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Birchwood city is located in Tennessee State, Hamilton County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Birchwood TN zip code by its streets and block numbers if we have some of the Birchwood streets loaded in our website
Birchwood Area Code is 423 and Time Zone is Eastern (GMT -05:00).
Birchwood Zip Code - Tennessee
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Birchwood City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Birchwood ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Birchwood, Tennessee.
The Birchwood Zip Code is 37308.
If you want to send a mail to Birchwood City, you should use the 37308 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Birchwood 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 37308 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Birchwood 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.