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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.

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Morris County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Morris County.

County State ZIP Code City Area Codes
Morris County NJ 07803 Mine Hill 862, 973
Morris County NJ 07806 Picatinny Arsenal 973, 862
Morris County NJ 07828 Budd Lake 862, 908, 973
Morris County NJ 07834 Denville 862, 973
Morris County NJ 07836 Flanders 862, 908, 973
Morris County NJ 07842 Hibernia 862, 973
Morris County NJ 07845 Ironia 862
Morris County NJ 07847 Kenvil 862, 973
Morris County NJ 07849 Lake Hopatcong 862, 973
Morris County NJ 07850 Landing 862, 973
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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.