Wellesley /ˈwɛlzli/ is a town in Norfolk County, Massachusetts, United States. Wellesley is part of Greater Boston. The population was 27,982 at the time of the 2010 census. In 2008, Wellesley had the 3rd highest median household and family incomes in all of Massachusetts. In 2018, data from the American Community Survey revealed that Wellesley was the 7th wealthiest city in the United States. It is best known as the home of Wellesley College, Babson College, and a campus of Massachusetts Bay Community College.