Coos County, NH

COOS COUNTY, situated at the extreme north part of New Hampshire, on the easterly side of Connecticut river. Area, 1,600 square miles. Face of the country mountainous and generally broken; soil in many parts productive in grain and pasturage. Seat of justice, Lancaster. Pop. in 1820, 5,549; in 1830, 8,390; in 1840, 9,849; in 1850, 11,713. (Fanning's, 1853)