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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Ohio ZIP Codes

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

State ZIP Code City County Area Codes
OH 45721 Coal Run Washington County 220, 740
OH 45723 Coolville Athens County 220, 304, 681, 740
OH 45724 Cutler Washington County 220, 740
OH 45727 Dexter City Noble County 220, 740
OH 45729 Fleming Washington County 220, 740
OH 45732 Glouster Athens County 220, 740
OH 45734 Graysville Monroe County 220, 740
OH 45735 Guysville Athens County 220, 740
OH 45739 Hockingport Athens County 220, 304, 681, 740
OH 45740 Jacksonville Athens 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.