Port Arthur TX ZIP Code
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Port Arthur city is located in Texas State, Jefferson County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Port Arthur TX zip code by its streets and block numbers if we have some of the Port Arthur streets loaded in our website
Port Arthur Area Code is 409 and Time Zone is Central (GMT -06:00).
Port Arthur Zip Code - Texas
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Port Arthur City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Port Arthur ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Port Arthur, Texas.
The Port Arthur Zip Code is 77640, 77641, 77642, 77643.
If you want to send a mail to Port Arthur City, you should use the 77640, 77641, 77642, 77643 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Port Arthur 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 77640, 77641, 77642, 77643 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Port Arthur 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.