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 45056 Oxford Butler County 283, 513, 765
OH 45061 Ross Butler County 283, 513
OH 45062 Seven Mile Butler County 283, 513
OH 45063 Shandon Butler County 283, 513
OH 45064 Somerville Butler County 283, 326, 513, 937
OH 45065 South Lebanon Warren County 283, 513
OH 45066 Springboro Warren County 283, 326, 513, 937
OH 45067 Trenton Butler County 283, 513
OH 45068 Waynesville Warren County 283, 326, 513, 937
OH 45069 West Chester Butler County 283, 513
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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.