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
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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 45622 Creola Vinton County 220, 740
OH 45623 Crown City Gallia County 220, 304, 681, 740
OH 45624 Cynthiana Pike County 220, 740
OH 45628 Frankfort Ross County 220, 326, 740, 937
OH 45629 Franklin Furnace Scioto County 220, 606, 740
OH 45630 Friendship Scioto County 220, 740
OH 45631 Gallipolis Gallia County 220, 304, 681, 740
OH 45633 Hallsville Ross County 740
OH 45634 Hamden Vinton County 220, 740
OH 45636 Haverhill Scioto County 220, 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.