Sullivan County, New Hampshire

Sullivan County: County in New Hampshire, United States

About

Sullivan County is a county located in the U.S. state of New Hampshire. As of the 2010 census, the population was 43,742 and a population density of 31 people per km². After 10 years in 2020 county had an estimated population of 43,267 inhabitants. Its county seat is Newport. The county was created 197 years ago in 1826.

Sullivan County locator map
Location of Sullivan County on New Hampshire map.

Quick Facts about Sullivan County

Population : 43,267 (2020)
Country : United States of America
State : New Hampshire (United States)
Different from : Sullivan County, Sullivan County, Sullivan County, Sullivan County, Sullivan County
Area : 1429 km2
Water as percent of area : 2.6%
Land as percent of area : 97.4%
Named for : John Sullivan
Capital : Newport
Establishment : January 01, 1827
Time Zone : America/New_York
Local time : 13:25:23 (8th December 2024)
Density : 30 Pop. per km² as of 2020
Population growth : -1.1% (2010-2020)
LempsterNHWindFarm Cemetery image
LempsterNHWindFarm Cemetery
LempsterNHWindFarm Cemetery image

Geography

Sullivan County is located at 43°21'40"N 72°13'21"W (43.3612200, -72.2224000). It has 6 neighbors: Hillsborough County, Cheshire County, Grafton County, Merrimack County, Windham County and Windsor County.

Sullivan County map

The largest city of Sullivan County is Claremont with a population of 12,944. . See all Sullivan County cities & populated places.

Sullivan County Populated Places

Cities, towns, neighborhoods & other populated places in Sullivan County.

City Name Population Title
Claremont 12,944 City in New Hampshire, United States
Newport 6,379 Town in New Hampshire, United States
Charlestown 5,032 Town in New Hampshire
Sunapee 3,505 Town of the United States
Grantham 2,955 Town in Sullivan County, New Hampshire, United States
Plainfield 2,419 Town in Sullivan County, New Hampshire, United States
Unity 1,616 Town in Sullivan County, New Hampshire, United States
Springfield 1,348 Town in New Hampshire, United States
Lempster 1,177 Town in Sullivan County, New Hampshire
Washington 1,104 Town in New Hampshire
Acworth 897 Town in New Hampshire
Goshen 813 Town in New Hampshire, United States
Croydon 774 Town in Sullivan County, New Hampshire, United States
Langdon 688 Town

Sullivan County has 6 neighbours.

  • Croydon
  • Newport
  • Langdon
  • Lempster
  • Acworth
  • Claremont
  • Goshen
  • Springfield
  • Sunapee
  • Plainfield
  • Washington
  • Cornish
  • Grantham
  • Charlestown
  • Unity

Demographics

According to census records, the population of Sullivan County decreased by 1.1% in 10 years.

Year Population % Change Method
2010 43,742 - census
2011 43,502 -0.55% estimation process
2012 43,229 -0.63% estimation process
2013 43,049 -0.42% estimation process
2014 43,149 0.23% estimation process
2015 43,148 -0% estimation process
2016 43,084 -0.15% estimation process
2017 43,027 -0.13% estimation process
2018 43,114 0.2% estimation process
2019 43,146 0.07% estimation process
2020 43,267 0.28% estimation process

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People born in Sullivan County (2)

People born in Sullivan County, including actor James Broderick, Union United States Army officer Thomas J. Cram, .

List

Other places with the same name (6)

New Hampshire Other Counties (more counties)

County Name Population Title
Hillsborough County 418,735 The most populous county in the U.
Rockingham County 311,307 County in New Hampshire, United States
Merrimack County 152,622 County in New Hampshire, United States
Strafford County 131,533 County in New Hampshire, United States
Manchester 112,546 The most populous city in Hillsborough County, New Hampshire.
City of Manchester 109,565 The most populous city in Hillsborough County, New Hampshire.
Grafton County 90,691 County in New Hampshire, United States
Nashua 89,167 The most populous city in Hillsborough County, New Hampshire.
Cheshire County 76,228 County in New Hampshire, United States
Belknap County 61,551 County in New Hampshire, United States
Carroll County 49,167 County in New Hampshire, United States
Concord 43,924 The capital of New Hampshire.
East Concord 42,605 A census-designated place in Merrimack County, New Hampshire.
Derry Village 34,539 City in Rockingham County, New Hampshire, United States of America
Derry 33,442 Town in New Hampshire, United States
Dover 32,443 County seat city in Strafford County, New Hampshire, United States