American symbols

Colorado Abbreviation

Seal and Nickname

What is the Abbreviation for Colorado?
The two digit state code or abbreviation of Colorado (CO) known as the "Centennial State". Colorado has 64 counties, and the capital of the State is Denver.


The two digit state code or abbreviation of Colorado is determined by taking the 'First Two Letters' of the State's name.  The two letter, no-period state abbreviation of CO is recommended by the U.S. Postal Service and should always be used where a ZIP code follows. The purpose of introducing the CO Abbreviation for Colorado 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 Colorado


AP State Abbreviation
The AP State Abbreviations, the old State Abbreviations, are still in use. The AP State Abbreviation for Colorado 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.

Colorado - (CO) - Colo.

Map showing location of Colorado in USA

Where is Colorado? (CO)

The State of Colorado is located in west central United States in the Rocky Mountains.


Abbreviation of Colorado - 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 Colorado?  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 CO!
You now know that the Colorado abbreviation is CO. 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!


Colorado Abbreviation (CO)

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

Abbreviation (CO)

US - American- Colorado - CO - Colo. - Map - Postal - Mailing - AP Style - Addresses - Initials - Letters - Digits - Zip Codes - Two Digit State Code - Facts - Info - Information - Kids - Children - Business - Businesses - America - United States - US - USA - CO - Colo.

June 2015 Siteseen Ltd.

Cookie Policy Privacy Statement