Aurora, Colorado, is the state’s third-largest city with about 386,000 residents. It covers about 160 square miles within Arapahoe, Adams, and Douglas counties. Just minutes from Denver International Airport, it has a vibrant business environment that attracts the large and small. Tree-lined streets, open prairie, mountain views, and ample parks spur its growth.
Colorado is in the Mountain West subregion of the U.S. It spans 104,094 square miles, of which 376 square miles are water, and shares borders with Wyoming, Nebraska, Kansas, Oklahoma, New Mexico, and Utah, and touches Arizona at the Four Corners. It is the 21st most populous, with about 5,773,700 residents. Denver is the capital and most populous city.