Larkspur is a home rule municipality in Douglas County, Colorado, United States.

[5] Each year, on weekends in June, July and August, the Colorado Renaissance Festival is held in the hills just west of the town.

A town that works together by: Fostering a Government of Integrity that Responds to its People, Directing Future Growth within Larkspur´s Small Town Values, Providing Community Facilities and Activities for All Ages, and Preserving the Natural Environment that is Unique to the Larkspur Area.

"[12] Larkspur is located in southern Douglas County in the valley of East Plum Creek.

According to the United States Census Bureau, the town has a total area of 1.5 square miles (3.9 km2), all land.