Willow Grove PA ZIP Code
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Willow Grove city is located in Pennsylvania State, Montgomery County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Willow Grove PA zip code by its streets and block numbers if we have some of the Willow Grove streets loaded in our website
Willow Grove Area Code is 267/215 and Time Zone is Eastern (GMT -05:00).
Willow Grove Zip Code - Pennsylvania
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Willow Grove City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Willow Grove ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Willow Grove, Pennsylvania.
The Willow Grove Zip Code is 19090.
If you want to send a mail to Willow Grove City, you should use the 19090 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Willow Grove 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 19090 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Willow Grove 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 Pennsylvania.