Sullivan County was organized in September, 1827. It was named for
General John Sullivan, a Revolutionary War hero, New Hampshire attorney general and judge.
County seat: Newport. Sullivan County is also the birthplace of America's machine tool industry.
Sullivan County is located in western New Hampshire, along the Vermont border. It consists of 528
square miles and contains a population of 39,370. Its largest city is Claremont with a population of
14,050. Twelve percent of Sullivan County is prime farmland. Many of these 18th century farms are
still in the same family. Primary industries include manufacturing, retail, health care and higher
education. Several historic mill communities are also located in Sullivan County.