Burlington is a town in Hartford County, Connecticut, United States.Situated at the foot of the Berkshires and bordering the Farmington River, Burlington is a scenic hill town, rural in nature, located 20 miles west of Hartford. Incorporated in 1806, the population was 9,301 at the 2010 census. Burlington is home to the State of Connecticut Fish Hatchery, the Nepaug Reservoir and Sessions Woods Wildlife Management Area. Almost half of the land in the town is owned by three public water supply companies and the State of Connecticut.