Denver, Colorado Springs, and Aurora.
The 5 largest cities in Colorado by population are Denver, Colorado Springs, Aurora, Fort Collins, and Lakewood. Denver has a population of 600,158. Colorado Springs has 416,427. Aurora has 325,078. Fort Collins has 143,986. Lakewood has 142,980
The top 6 most populous (and major cities) are (in order): Denver, Colorado Springs, Pueblo, Lakewood, Fort Collins, and Aurora
Denver: 598,707Colorado Spring: 360,890Aurora: 276,393Lake Wood: 140,772Fort Collins: 124,252The top 5 largest cities are Denver, Colorado Springs, Aurora, Lakewood, and Fort Collins.
Denver, Colorado Springs, Aurora, Fort Collins, and Lakewood
According to a Google search, Denver, Colorado Springs, Aurora, Fort Collins & Lakewood. However, Aurora and Lakewood are suburbs of Denver. If I had to guess at the biggest cities in Colorado that include Denver as a general metro area, I would say Denver, Colorado Springs, Fort Collins, Pueblo, Boulder and Grand Junction.
Denver, Colorado Springs, Aurora, Lake Wood, & Fort Collins... accourding to population
Based on population the largest cities in Colorado are Denver, Colorado Springs, Aurora, Fort Collins, and Lakewood.
Denver: 598,707 Colorado Spring: 360,890 Aurora: 276,393
Denver, Colorado is about one hour in driving distance from northern Colorado Springs, CO
Colorado Springs is 65 miles (105 kilometers) south of Denver
There are many major cities. Some of the most famous ones and the top 3 largest cities are Denver, Colorado Springs, and Aurora.