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	74602	Ponca City	Kay County	`580`
OK	74604	Ponca City	Kay County	`539, 580, 918`
OK	74630	Billings	Noble County	`580`
OK	74631	Blackwell	Kay County	`580`
OK	74632	Braman	Kay County	`580, 620`
OK	74633	Burbank	Osage County	`539, 580, 918`
OK	74636	Deer Creek	Grant County	`580`
OK	74637	Fairfax	Osage County	`539, 580, 918`
OK	74640	Hunter	Garfield County	`580`
OK	74641	Kaw City	Kay County	`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.