American symbols

Oklahoma Abbreviation

Seal and Nickname

Oklahoma City
The two digit state code or abbreviation of Oklahoma (OK) known as the "Cowboy Country". Oklahoma has 77 counties, and the capital of the State is Oklahoma City.


The two digit state code or abbreviation of Oklahoma is determined by taking the 'First Two Letters' of the State's name.  The two letter, no-period state abbreviation of OK is recommended by the U.S. Postal Service and should always be used where a ZIP code follows. The purpose of introducing the OK Abbreviation for Oklahoma was to make room for ZIP codes in the mailing addresses. There was no attempt to standardize the format of the abbreviations which is why they are usually memorized.

Map of Oklahoma


AP State Abbreviation
The AP State Abbreviations, the old State Abbreviations, are still in use. The AP State Abbreviation for Oklahoma is:


The Associated Press (AP) style of abbreviation, the old style, is still used by journalists and business people. As some two digit state codes are determined from the first and last letter of the old abbreviation they are important to those learning about the abbreviations of the US States.

Oklahoma - (OK) - Okla.

Map showing location of Oklahoma in USA

Where is Oklahoma? (OK)

The State of Oklahoma is located in the south central United States.


Abbreviation of Oklahoma - Two Digit State Code Rules
There is no standard format to the State Abbreviations. It's therefore not surprising that you needed to know "What is the Abbreviation for Oklahoma?  The rules to determine the state acronym, or abbreviation is by the 'First Two Letters', the 'First and Last Letter', the 'Initial Letter of 2 words' and those determined by the 'First and Last Letter of the Old Abbreviation'.

Play the Abbreviation of States Game OK!
You now know that the Oklahoma abbreviation is OK. But what about the abbreviation for all the other US states? We have developed an Abbreviation of States Game to play. It's a totally free, multiple choice, online, picture quiz game with no downloads required. Free fun as you learn!


Oklahoma Abbreviation (OK)

Initials & Acronym - OK
Initials determined by the 'First Two Letters'
Facts about AP style
Oklahoma - (OK) - Okla.
What state is OK? Abbr. of states
Interesting facts about the two digit code
Old states initials, letters and acronym
Two letter abbreviation of Oklahoma (OK)

Abbreviation (OK)

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