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 45812 Alger Hardin County 419, 567
OH 45813 Antwerp Paulding County 260, 419, 567
OH 45814 Arlington Hancock County 419, 567
OH 45815 Belmore Putnam County 419, 567
OH 45816 Benton Ridge Hancock County 419, 567
OH 45817 Bluffton Allen County 419, 567
OH 45819 Buckland Auglaize County 419, 567
OH 45820 Cairo Allen County 419, 567
OH 45821 Cecil Paulding County 419, 567
OH 45822 Celina Mercer County 260, 419, 567
Page 138 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.