Sullivan County, New Hampshire

Sullivan County History

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.


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