Denver–Aurora–Lakewood metropolitan area

Denver is the central city of a conurbation region in the U.S. state of Colorado. The conurbation includes one continuous region consisting of the six central counties of Adams, Arapahoe, Broomfield, Denver, Douglas and Jefferson. The Denver region is part of the Front Range Urban Corridor.

The United States Office of Management and Budget has delineated the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area consisting of ten Colorado counties: the City and County of Denver, Arapahoe County, Jefferson County, Adams County, Douglas County, the City and County of Broomfield, Elbert County, Park County, Clear Creek County, and Gilpin County. The United States Census Bureau estimates that the population was 2,812,732 as of July 1, 2015, an increase of +10.6% since the 2010 United States Census, and ranking as the 19th most populous metropolitan statistical area of the United States.

The Office of Management and Budget also delineated the more extensive Denver-Aurora Combined Statistical Area comprising the Denver-Aurora-Lakewood Metropolitan Statistical Area, the Boulder Metropolitan Statistical Area, and the Greeley Metropolitan Statistical Area.

...
Wikipedia