Colorado (USA) is 2.6 times larger than Iceland.
Area: 103,000 km2 World Factbook
Population: 317,351 (July 2014) World Factbook
Iceland is a Nordic country between the North Atlantic and the Arctic Ocean. It has a population of 325,671 and an area of 103,000 km², making it the most sparsely populated country in Europe. Wikipedia
Colorado is a U.S. state encompassing most of the Southern Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is part of the Western United States, the Southwestern United States, and the Mountain States. Wikipedia