Columbine, Colorado

Columbine is a census-designated place (CDP) in Arapahoe and Jefferson counties in the U.S. state of Colorado. Located mostly in Jefferson County, it lies west of the Denver suburb of Littleton. As of the 2020 census, the CDP had a population of 25,229. In 1999, Columbine was the site of the Columbine High School massacre. References