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 74731 Cartwright Bryan County 430, 580, 903
OK 74733 Colbert Bryan County 430, 580, 903
OK 74734 Eagletown McCurtain County 580, 870
OK 74735 Fort Towson Choctaw County 430, 580, 903
OK 74736 Garvin McCurtain County 430, 580, 903
OK 74737 Golden McCurtain County 580
OK 74738 Grant Choctaw County 430, 580, 903
OK 74740 Haworth McCurtain County 430, 580, 870, 903
OK 74741 Hendrix Bryan County 430, 580, 903
OK 74743 Hugo Choctaw County 430, 580, 903
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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.