Denver, Colorado's elevation is officially 5,280 feet (1,609 meters) above sea level. The benchmark is marked on the west steps of the State Capitol—step 13, to be precise—making Denver one of the highest major U.S. cities.
City limits range 5,130–5,690 ft. Stapleton/Northfield (NE) ~5,350 ft; Bear Valley (SW) ~5,600 ft. Suburbs climb higher—Castle Rock 6,200 ft, Evergreen 7,200 ft.
One mile high isn't a slogan—it's a specification that shapes life in subtle, surprising ways.