Dedham is a county seat located in the Massachusetts region of the United States. During the most recent census, Dedham had a population of 24,729. Dedham is the 74th most poplulated city in the Massachusetts region, the 1,786th most populated city in the United States and the 11,803rd most populated city in the world. Dedham is in the America/New York timezone which is 4 hours behind UTC. Dedham adjusts the hour with daylight savings time during the winter months.
Dedham is located at sea level (33 meters / 108 feet). The closest cities to Dedham are Westwood (5.7 km / 3.6 miles), Norwood (5.9 km / 3.7 miles), Needham (7.2 km / 4.5 miles), Milton (8.3 km / 5.1 miles) and Jamaica Plain (8.5 km / 5.3 miles)