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Pennsylvania Zip Codes



Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a US state that is located in the Northeastern and Mid-Atlantic regions of the United States, and the Great Lakes region. The state borders Delaware to the southeast, Maryland to the south, West Virginia to the southwest, Ohio to the west, Lake Erie to the northwest, New York to the north, and New Jersey to the east.

Pennsylvania is the 33rd most extensive, the 6th most populous, and the 9th most densely populated of the 50 United States. The state s four most populous cities are Philadelphia, Pittsburgh, Allentown, and Erie. The state capital is Harrisburg. Pennsylvania has 63 miles (101 km) of coastline along Lake Erie and 57 miles (92 km) of shoreline along the Delaware Estuary.

State Zip Code City County Area Codes
PA 19450 Lederach Montgomery County 215, 267, 445
PA 19451 Mainland Montgomery County 215, 267, 445
PA 19453 Mont Clare Montgomery County 484, 610, 835
PA 19454 North Wales Montgomery County 215, 267, 445
PA 19455 North Wales Montgomery County 215
PA 19456 Oaks Montgomery County 484, 610, 835
PA 19457 Parker Ford Chester County 484, 610, 835
PA 19460 Phoenixville Chester County 484, 610, 835
PA 19462 Plymouth Meeting Montgomery County 215, 267, 445, 484, 610, 835
PA 19464 Pottstown Montgomery County 484, 610, 835
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Map of Pennsylvania

ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the code in the postal address. The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the ZIP code, a hyphen, and four more digits that determine a more precise location than the ZIP code alone. The term ZIP code was originally registered as a servicemark (a type of trademark) by the U.S. Postal Service, but its registration has since expired.

ZIP codes designate only delivery points within the United States and its dependencies, as well as locations of its armed forces. There are no ZIP codes reserved for designating mail bound for foreign destinations (with the exception of U.S. military units stationed outside of the United States), and therefore, international outbound mail should not include a ZIP code in the delivery address. The last line of a foreign address must only show the name of the country of destination.

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