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
Maps and coordinates
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 43011 Centerburg Knox County 220, 419, 567, 740
OH 43013 Croton Licking County 220, 740
OH 43014 Danville Knox County 220, 234, 330, 419, 567, 740
OH 43015 Delaware Delaware County 220, 380, 419, 567, 614, 740
OH 43016 Dublin Franklin County 380, 614
OH 43017 Dublin Franklin County 380, 614
OH 43018 Etna Licking County 220, 740
OH 43019 Fredericktown Knox County 220, 419, 567, 740
OH 43021 Galena Delaware County 220, 380, 614, 740
OH 43022 Gambier Knox County 220, 740
Page 2 of 145

Geographic Map of Ohio

Postal context

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.