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
All states and U.S. territories
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State directory

Ohio ZIP Codes

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

State ZIP Code City County Area Codes
OH 44430 Leavittsburg Trumbull County 234, 330
OH 44431 Leetonia Columbiana County 234, 330
OH 44432 Lisbon Columbiana County 234, 330
OH 44436 Lowellville Mahoning County 234, 330, 724, 878
OH 44437 Mc Donald Trumbull County 234, 330
OH 44438 Masury Trumbull County 234, 330, 724, 878
OH 44439 Mesopotamia Trumbull County 440
OH 44440 Mineral Ridge Trumbull County 234, 330
OH 44441 Negley Columbiana County 234, 330, 724, 878
OH 44442 New Middletown Mahoning County 234, 330, 724, 878
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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.