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U.S. ZIP Codes Database 2026

Name: Kay County
Address: US

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Kay County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Kay County.

County	State	ZIP Code	City	Area Codes
Kay County	OK	74601	Ponca City	`580`
Kay County	OK	74602	Ponca City	`580`
Kay County	OK	74604	Ponca City	`539, 580, 918`
Kay County	OK	74631	Blackwell	`580`
Kay County	OK	74632	Braman	`580, 620`
Kay County	OK	74641	Kaw City	`580`
Kay County	OK	74646	Nardin	`580`
Kay County	OK	74647	Newkirk	`580, 620`
Kay County	OK	74653	Tonkawa	`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.