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

Oklahoma ZIP Codes

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

State ZIP Code City County Area Codes
OK 73011 Bradley Grady County 405, 572, 580
OK 73012 Edmond Oklahoma County 405, 572
OK 73013 Edmond Oklahoma County 405, 572
OK 73014 Calumet Canadian County 405, 572
OK 73015 Carnegie Caddo County 405, 572, 580
OK 73016 Cashion Kingfisher County 405, 572
OK 73017 Cement Caddo County 405, 572, 580
OK 73018 Chickasha Grady County 405, 572
OK 73019 Norman Cleveland County 405, 572
OK 73020 Choctaw Oklahoma County 405, 572
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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.