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
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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 73937 Felt Cimarron County 575, 580, 806
OK 73938 Forgan Beaver County 580, 620
OK 73939 Goodwell Texas County 580, 620, 806
OK 73942 Guymon Texas County 580, 620, 806
OK 73944 Hardesty Texas County 580, 806
OK 73945 Hooker Texas County 580, 620
OK 73946 Kenton Cimarron County 303, 575, 580, 719, 720, 983
OK 73947 Keyes Cimarron County 580, 620, 719
OK 73949 Texhoma Texas County 580, 806
OK 73950 Turpin Beaver County 580, 620
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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.