Stamford () is a city in Fairfield County, Connecticut, the United States. According to the US Census Bureau, the population of the city is 122,643 as of the 2010 census, and 129,638 in 2019, according to the Census Bureau, making it the third-largest city in the state (behind Bridgeport and New Haven), and the seventh-largest city in New England. Approximately halfway between Manhattan and New Haven at approximately 38 miles (60 kilometers) from each, Stamford is in the Bridgeport-Stamford-Norwalk-Danbury Metro area which is a part of the Greater New York metropolitan area.
Stamford is home to nine Fortune 500 companies as of 2019, as well as numerous divisions of large corporations. This gives Stamford the largest financial district in the New York metropolitan region outside New York City itself and one of the largest concentrations of corporations in the United States.
Stamford was known as Rippowam by the Siwanoy Native American inhabitants to the region, and the very first European settlers to the area also referred to it as such. The present name is after the town of Stamford, Lincolnshire, England. The deed to Stamford was signed on July 1, 1640, between Captain Turner of the New Haven Colony and Chief Ponus. By the 18th century, one of the primary industries of the town was merchandising by water, which was possible due to Stamford's proximity to New York.
In 1692, Stamford was home to a less famous witch trial than the well-known Salem witch trials, which also occurred in 1692.