Watkins (also once called Box Elder) is a census-designated place (CDP) in Arapahoe and Adams County, Colorado, United States. It was formerly an incorporated town. The Watkins Post Office has the ZIP Code 80137. In 2006, its population was estimated at 1,955 residents: 306 in Adams County, and 1,649 in Arapahoe County.
Long an unincorporated community, Watkins incorporated as a town on June 15, 2004. However, on November 7, 2006, the town voted to revert to being an unincorporated community by a margin of 308-184.
Watkins is involved in trying to build the First Park in Adams County and the Watkins Historical Preservation Society is co-operating with the town on some historical buildings for installation in the park as well. Front Range Airport is located near Watkins.