Quincy is the largest city in Norfolk County, Massachusetts, United States. It is a major part of Metropolitan Boston and is Boston's immediate southern suburb. Its population in 2010 was 92,271, making it the 8th largest city in the state. Known as the "City of Presidents," Quincy is the birthplace of two U.S. presidents — John Adams and his son John Quincy Adams — as well as John Hancock, a President of the Continental Congress and the first signer of the Declaration of Independence.