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 45850 Harrod Allen County 326, 419, 567, 937
OH 45851 Haviland Paulding County 419, 567
OH 45853 Kalida Putnam County 419, 567
OH 45854 Lafayette Allen County 419, 567
OH 45855 Latty Paulding County 419, 567
OH 45856 Leipsic Putnam County 419, 567
OH 45858 Mc Comb Hancock County 419, 567
OH 45859 Mc Guffey Hardin County 419, 567
OH 45860 Maria Stein Mercer County 419, 567
OH 45861 Melrose Paulding County 419, 567
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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.