Watertown is a town in Jefferson County, New York, United States.

[1] The town is located in the central part of the county and borders the city of Watertown to the south, east, and west.

Numerous sites of aboriginal habitation were found by early surveyors of this region.

The town was first settled in 1800 around the time of the first permanent US military presence in the region, which was established at nearby Sackets Harbor to guard the international border and to fight smuggling in the St. Lawrence region.

The John Losee House was added to the National Register of Historic Places in 2014.

The area is served by Watertown International Airport to the west in the town of Hounsfield.

Three full-power television stations, WPBS (PBS), WWNY (CBS) and WWTI (ABC), currently serve the Watertown area.