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U.S. ZIP Codes Database 2026

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Trumbull County ZIP Codes

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

County State ZIP Code City Area Codes
Trumbull County OH 44430 Leavittsburg 234, 330
Trumbull County OH 44437 Mc Donald 234, 330
Trumbull County OH 44438 Masury 234, 330, 724, 878
Trumbull County OH 44439 Mesopotamia 440
Trumbull County OH 44440 Mineral Ridge 234, 330
Trumbull County OH 44444 Newton Falls 234, 330
Trumbull County OH 44446 Niles 234, 330
Trumbull County OH 44450 North Bloomfield 234, 330, 440
Trumbull County OH 44453 Orangeville 234
Trumbull County OH 44470 Southington 234, 330
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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.