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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Oklahoma ZIP Codes

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

State ZIP Code City County Area Codes
OK 73043 Greenfield Blaine County 405, 572, 580
OK 73044 Guthrie Logan County 405, 572, 580
OK 73045 Harrah Oklahoma County 405, 572
OK 73047 Hinton Caddo County 405, 572
OK 73048 Hydro Caddo County 405, 572, 580
OK 73049 Jones Oklahoma County 405, 572
OK 73050 Langston Logan County 405, 572
OK 73051 Lexington Cleveland County 405, 572
OK 73052 Lindsay Garvin County 405, 572, 580
OK 73053 Lookeba Caddo 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.