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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New Jersey ZIP Codes

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

State ZIP Code City County Area Codes
NJ 08520 Hightstown Mercer County 609, 640, 732, 848
NJ 08525 Hopewell Mercer County 609, 640, 908
NJ 08526 Imlaystown Monmouth County 732
NJ 08527 Jackson Ocean County 609, 640, 732, 848
NJ 08528 Kingston Somerset County 609, 640, 732, 848
NJ 08530 Lambertville Hunterdon County 215, 267, 445, 609, 640, 908
NJ 08533 New Egypt Ocean County 609, 640, 732, 848
NJ 08534 Pennington Mercer County 609, 640
NJ 08535 Millstone Township Monmouth County 609, 640, 732, 848
NJ 08536 Plainsboro Middlesex County 609, 640, 732, 848
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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.