Sullivan County
New Hampshire


                           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. 

A landmark in Sullivan County is Fort at No 4, a Living History Museum. This museum was originally constructed in the middle of what is now the town of Charlestown. A plaque commemorates this fact. The Fort #4 replica was constructed about a mile or so away as it required some acreage for this living museum.  For those interested in genealogy,  and are interested in life during the Colonial Days. Visit their web site:

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Town          Date Formed Population Town Coordinator
Acworth 1776 891 Available
Charlestown 1753 1,152 Linda Simpson
Claremont  1764 13,355 Available
Cornish 1763 1,640 Available
Croydon 1763 764 Available
Goshen 1791 810 Andi Willett
Grantham 1761 2,985 Available
Langdon 1787 688 Marcia Maloney
Lempster 1761 1,154 Available        
Newport 1761 county seat Linda Simpson
Plainfield 1761 2,364 Available
Springfield 1794 1,311                ----
Sunapee 1850 3,365 Available
Unity 1764 1,671


Washington 1776 1,123 Available

Populations figures per 2010 census

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County Coordinator

Linda Simpson

SC - Trish Elliott-Kashima
George Kidder

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Sullivan County. New Hampshire