Watertown is a city located in the Massachusetts region of the United States. During the most recent census, Watertown had a population of 31,915. Watertown is the 51st most poplulated city in the Massachusetts region, the 1,351st most populated city in the United States and the 9,788th most populated city in the world. Watertown is in the America/New York timezone which is 4 hours behind UTC. Watertown adjusts the hour with daylight savings time during the winter months.
Watertown is located at sea level (19 meters / 62 feet). The closest cities to Watertown are Belmont (2.8 km / 1.7 miles), Newton (4.4 km / 2.7 miles), Waltham (4.4 km / 2.7 miles), Arlington (5.4 km / 3.4 miles) and Cambridge (6.4 km / 4.0 miles)