Waltham is a city located in the Massachusetts region of the United States. During the most recent census, Waltham had a population of 60,632. Waltham is the 17th most poplulated city in the Massachusetts region, the 624th most populated city in the United States and the 5,852nd most populated city in the world. Waltham is in the America/New York timezone which is 4 hours behind UTC. Waltham adjusts the hour with daylight savings time during the winter months.
Waltham is located at sea level (20 meters / 66 feet). The closest cities to Waltham are Watertown (4.4 km / 2.7 miles), Newton (4.9 km / 3.0 miles), Belmont (5.2 km / 3.2 miles), Weston (5.7 km / 3.5 miles) and Arlington (7.8 km / 4.9 miles)