The Town of Deer Trail is a Statutory Town located in eastern Arapahoe County, Colorado, United States. The town population was 1,068 at the 2020 United States Census, a+95.60% increase since the 2010 United States Census. Deer Trail is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area and the Front Range Urban Corridor. The town is situated along Interstate 70, approximately 55 miles east of Denver.