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 73021 Colony Washita County 405, 572, 580
OK 73022 Concho Canadian County 405, 572
OK 73023 Chickasha Grady County 405
OK 73024 Corn Washita County 405, 572, 580
OK 73025 Edmond Oklahoma County 405, 572
OK 73026 Norman Cleveland County 405, 572
OK 73027 Coyle Logan County 405, 572
OK 73028 Crescent Logan County 405, 572, 580
OK 73029 Cyril Caddo County 405, 572, 580
OK 73030 Davis Murray County 405, 572, 580
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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.