Castalian Springs TN ZIP Code
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Castalian Springs city is located in Tennessee State, Sumner County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Castalian Springs TN zip code by its streets and block numbers if we have some of the Castalian Springs streets loaded in our website
Castalian Springs Area Code is 615 and Time Zone is Central (GMT -06:00).
Castalian Springs Zip Code - Tennessee
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Castalian Springs City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Castalian Springs ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Castalian Springs, Tennessee.
The Castalian Springs Zip Code is 37031.
If you want to send a mail to Castalian Springs City, you should use the 37031 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Castalian Springs 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 37031 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Castalian Springs 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.