Watertown is a census-designated place (CDP) in Litchfield County, Connecticut, United States.

The CDP is bordered to the southeast by the community of Oakville, the most populous place in Watertown.

[2] U.S. Route 6 follows Cutler Street, Deforest Street, and Woodbury Road through the center of the community; it leads northeast 5 miles (8 km) to Thomaston and southwest 7 miles (11 km) to Woodbury.

Male full-time workers had a median income of $57,385 versus $41,723 for females.

About 0% of families and 6.3% of the population were living below the poverty line, including 5.1% of those age 65 or over.