Greater Boston can be described either as a
metropolitan statistical area (MSA), or as a broader
combined statistical area (CSA). The MSA consists of most of the eastern third of Massachusetts, excluding the
South Coast region and
Cape Cod; while the CSA additionally includes the municipalities of
Manchester (the largest
city in the U.S. state of New Hampshire),
Worcester, Massachusetts (the second largest
city in New England), as well as the South Coast region and Cape Cod in Massachusetts. While the small footprint of the city of Boston itself only contains an estimated 685,094, the urbanization has extended well into surrounding areas; the CSA is one of two in Massachusetts, the only other being
Greater Springfield. Greater Boston is the only CSA-form statistical area in New England which crosses into three states (Massachusetts, New Hampshire and Rhode Island).
Some of Greater Boston's most well-known contributions involve the region's
higher education and medical institutions. Greater Boston has been influential upon American
history and
industry. The region and the state of Massachusetts are global leaders in
biotechnology,
engineering,
higher education,
finance, and
maritime trade.
[1]
Over 80% of Massachusetts' population lives in the Greater Boston metropolitan region. Greater Boston is
ranked tenth in population among US metropolitan statistical areas, home to 4,875,390 people as of the 2018 US Census estimate, and
sixth among combined statistical areas, with a population of 8,285,407.
[2] The area has hosted many people and sites significant to
American culture and history, particularly
American literature,
[3] politics, and the
American Revolution.