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	73552	Indiahoma	Comanche County	`580`
OK	73553	Loveland	Tillman County	`580`
OK	73554	Mangum	Greer County	`580`
OK	73555	Manitou	Tillman County	`580`
OK	73556	Martha	Jackson County	`580`
OK	73557	Medicine Park	Comanche County	`580`
OK	73558	Meers	Comanche County	`580`
OK	73559	Mountain Park	Kiowa County	`580`
OK	73560	Olustee	Jackson County	`580, 940`
OK	73561	Oscar	Jefferson County	`580`

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Geographic Map of Oklahoma

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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.