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 43035 Lewis Center Delaware County 220, 380, 614, 740
OH 43036 Magnetic Springs Union County 326, 937
OH 43037 Martinsburg Knox County 220, 740
OH 43040 Marysville Union County 220, 326, 380, 614, 740, 937
OH 43041 Marysville Union County 937
OH 43044 Mechanicsburg Champaign County 220, 326, 380, 614, 740, 937
OH 43045 Milford Center Union County 326, 380, 614, 937
OH 43046 Millersport Fairfield County 220, 740
OH 43047 Mingo Champaign County 326, 937
OH 43048 Mount Liberty Knox County 740
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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.