Dedham is a town located in the U.S. state of Massachusetts. It is within and the county seat of Norfolk County included in the Boston-Cambridge-Newton Metro Area. It has a total area of 10.6 square miles at 42°14′30″N 71°10′00″W. The elevation is 120 feet above sea level. As of the 2010 census data, it had a total population of 24,729. The population density was 2,355.1/sq mi. Estimated per capita income in 2016 was $46,696. Recent job growth is positively increased by 1.30 percent. The average travel time is 25 minutes. It has Zip code 02026.