U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
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Pennsylvania ZIP Codes

Complete postal directory, details, and geographic map for the State of Pennsylvania.

State ZIP Code City County Area Codes
PA 18063 Martins Creek Northampton County 484, 610, 835
PA 18064 Nazareth Northampton County 484, 610, 835
PA 18065 Neffs Lehigh County 484, 610, 835
PA 18066 New Tripoli Lehigh County 272, 484, 570, 610, 835
PA 18067 Northampton Northampton County 484, 610, 835
PA 18068 Old Zionsville Lehigh County 484
PA 18069 Orefield Lehigh County 484, 610, 835
PA 18070 Palm Montgomery County 215, 267, 445, 484, 610, 835
PA 18071 Palmerton Carbon County 484, 610, 835
PA 18072 Pen Argyl Northampton County 272, 484, 570, 610, 835
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.