Westborough MA ZIP Code
Westborough city is located in Massachusetts State, Worcester County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Westborough MA zip code by its streets and block numbers if we have some of the Westborough streets loaded in our website
Westborough Area Code is 508/774 and Time Zone is Eastern (GMT -05:00).
Westborough Zip Code - Massachusetts
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Westborough City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Westborough ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Westborough, Massachusetts.
The Westborough Zip Code is 01581.
If you want to send a mail to Westborough City, you should use the 01581 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Westborough 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 01581 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Westborough 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 Massachusetts.