South Mountain PA ZIP Code
South Mountain city is located in Pennsylvania State, Franklin County and has a unique zip code assigned by the US Postal Service Office.
You can search for the South Mountain PA zip code by its streets and block numbers if we have some of the South Mountain streets loaded in our website
South Mountain Area Code is 717 and Time Zone is Eastern (GMT -05:00).
South Mountain Zip Code - Pennsylvania
The US ZIP Code basic format consists of five decimal numerical digits assigned to the South Mountain City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the South Mountain ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in South Mountain, Pennsylvania.
The South Mountain Zip Code is 17261.
If you want to send a mail to South Mountain City, you should use the 17261 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded South Mountain 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 17261 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a South Mountain 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.