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 45601 Chillicothe Ross County 220, 740
OH 45612 Bainbridge Ross County 220, 326, 740, 937
OH 45613 Beaver Pike County 220, 740
OH 45614 Bidwell Gallia County 220, 740
OH 45616 Blue Creek Adams County 220, 326, 740, 937
OH 45617 Bourneville Ross County 220, 740
OH 45618 Cherry Fork Adams County 326, 937
OH 45619 Chesapeake Lawrence County 220, 304, 681, 740
OH 45620 Cheshire Gallia County 220, 304, 681, 740
OH 45621 Coalton Jackson 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.