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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State directory

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 07820 Allamuchy Warren County 908
NJ 07821 Andover Sussex County 862, 908, 973
NJ 07822 Augusta Sussex County 862, 973
NJ 07823 Belvidere Warren County 272, 484, 570, 610, 835, 908
NJ 07825 Blairstown Warren County 272, 570, 862, 908, 973
NJ 07826 Branchville Sussex County 862, 908, 973
NJ 07827 Montague Sussex County 272, 570, 845, 862, 973
NJ 07828 Budd Lake Morris County 862, 908, 973
NJ 07829 Buttzville Warren County 908
NJ 07830 Califon Hunterdon County 908
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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.