Castell TX ZIP Code
Castell city is located in Texas State, Llano County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Castell TX zip code by its streets and block numbers if we have some of the Castell streets loaded in our website
Castell Area Code is 325 and Time Zone is Central (GMT -06:00).
Castell Zip Code - Texas
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Castell City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Castell ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Castell, Texas.
The Castell Zip Code is 76831.
If you want to send a mail to Castell City, you should use the 76831 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Castell 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 76831 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Castell 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 Texas.