Williston SC ZIP Code
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Williston city is located in South Carolina State, Barnwell County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Williston SC zip code by its streets and block numbers if we have some of the Williston streets loaded in our website
Williston Area Code is 803 and Time Zone is Eastern (GMT -05:00).
Williston Zip Code - South Carolina
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Williston City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Williston ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Williston, South Carolina.
The Williston Zip Code is 29853.
If you want to send a mail to Williston City, you should use the 29853 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Williston 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 29853 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Williston 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 South Carolina.