State of Colorado which is part of the United States, was founded in Aug. 1, 1876. Colorado occupies the 8 place in terms of total area of the US. The area of the state is 269 602 square kilometers. The capital of Colorado is Denver. The population of Colorado amounts to 5 540 545 people and ranks 21 in terms of population of the US. The largest city of the state is Denver. Our catalog contains 75 cities and 147 435 enterprises located in this state. Postal abbreviation or short name is CO.