This article shows U.S. Census totals for Sullivan County, New Hampshire, broken down by municipality, from 1900 to 2000.

Like most areas of New England

New England

New England is a region in the northeastern corner of the United States consisting of the six states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut...

, Sullivan County

Sullivan County, New Hampshire

-Demographics:As of the census of 2000, there were 40,458 people, 16,530 households, and 11,174 families residing in the county. The population density was 29/; . There were 20,158 housing units at an average density of 38 per square mile...

 is (and has been at all times since well before the 20th century) entirely divided into incorporated municipalities. There is no unincorporated territory. For any census, adding up the totals for each municipality should yield the county total.

There are two types of incorporated municipalities in New Hampshire, towns

New England town

The New England town is the basic unit of local government in each of the six New England states. Without a direct counterpart in most other U.S. states, New England towns are conceptually similar to civil townships in other states, but are incorporated, possessing powers like cities in other...

 and cities. The tables below differentiate between towns and cities.

For more information on the New England municipal system, see New England town

New England town

The New England town is the basic unit of local government in each of the six New England states. Without a direct counterpart in most other U.S. states, New England towns are conceptually similar to civil townships in other states, but are incorporated, possessing powers like cities in other...

.

1900

County total: 18,009

• Claremont
  Claremont, New Hampshire
  There were 5,685 households out of which 27.4% had children under the age of 18 living with them, 45.5% were married couples living together, 10.3% had a female householder with no husband present, and 39.7% were non-families. 32.2% of all households were made up of individuals and 14.7% had...
  
   6,498
• Newport
  Newport, New Hampshire
  Newport is a town in and the county seat of Sullivan County, New Hampshire, United States. It is west-northwest of Concord. The population was 6,507 at the 2010 census. A covered bridge is in the northwest...
  
   3,126
• Charlestown
  Charlestown, New Hampshire
  Charlestown is a town in Sullivan County, New Hampshire, United States. The population was 5,114 at the 2010 census. The town is home to Hubbard State Forest and the headquarters of the Student Conservation Association....
  
   1,473
• Plainfield
  Plainfield, New Hampshire
  Plainfield is a town in Sullivan County, New Hampshire, United States. As of the 2010 census, the town had a total population of 2,364. The town is home to the Helen Woodruff Smith Bird Sanctuary and Annie Duncan State Forest....
  
   1,114
• Cornish
  Cornish, New Hampshire
  Cornish is a town in Sullivan County, New Hampshire, United States. The population was 1,640 at the 2010 census. Cornish has three covered bridges. Each August, it is home to the Cornish Fair.-History:...
  
   962
• Sunapee
  Sunapee, New Hampshire
  Sunapee is a town in Sullivan County, New Hampshire, United States. The population was 3,365 at the 2010 census. Sunapee is home to part of Lake Sunapee...
  
   946
• Acworth
  Acworth, New Hampshire
  Acworth is a town in Sullivan County, New Hampshire, United States. As of the 2010 census, the town had a total population of 891.-History:Originally chartered by Governor Benning Wentworth in 1752, it was called Burnet after William Burnet, a former governor of the Province of Massachusetts Bay...
  
   594
• Unity
  Unity, New Hampshire
  Unity is a town in Sullivan County, New Hampshire, United States. The population was 1,671 at the 2010 census. The town includes the villages of Unity, East Unity, Quaker City, and West Unity.- Geography :...
  
   572
• Washington
  Washington, New Hampshire
  Washington is a town in Sullivan County, New Hampshire, United States. The population was 1,123 at the 2010 census. Situated in a hilly, rocky, forested area, and with 26 lakes and ponds, Washington is a picturesque resort area...
  
   464
• Springfield
  Springfield, New Hampshire
  Springfield is a town in Sullivan County, New Hampshire, United States. The population was 1,311 at the 2010 census. Gile State Forest is located within the town.-History:...
  
   439
• Lempster
  Lempster, New Hampshire
  Lempster is a town in Sullivan County, New Hampshire, United States. The population was 1,154 at the 2010 census. Settlements include the town center and the village of East Lempster.- History :...
  
   391
• Grantham
  Grantham, New Hampshire
  Grantham is a town in Sullivan County, New Hampshire, United States. The population was 2,985 at the 2010 census. This made Grantham the fastest growing town numerically in Sullivan County between the 2000 and 2010 censuses...
  
   374
• Croydon
  Croydon, New Hampshire
  Croydon is a town in Sullivan County, New Hampshire, United States. The population was 764 at the 2010 census.- History :Incorporated in 1763, the town takes its name from Croydon, a suburb of London, England.- Geography :...
  
   372
• Goshen
  Goshen, New Hampshire
  Goshen is a town in Sullivan County, New Hampshire, United States. The population was 810 at the 2010 census.- History :Incorporated in 1791, Goshen was first settled in 1768 as a part of Saville...
  
   345
• Langdon
  Langdon, New Hampshire
  Langdon is a town in Sullivan County, New Hampshire, United States. The population was 688 at the 2010 census.-History:First settled in 1773 by Seth Walker, Langdon was incorporated on January 11, 1787, when it was named after Governor John Langdon. The town is home to the Prentiss Bridge, the...
  
   339

1910

County total: 19,337

• Claremont 7,529
• Newport 3,765
• Charlestown 1,496
• Sunapee 1,071
• Cornish 1,005
• Plainfield 987
• Acworth 536
• Unity 504
• Springfield 422
• Lempster 383
• Washington 360
• Langdon 340
• Goshen 329
• Croydon 324
• Grantham 286

1920

County total: 20,922

• Claremont 9,524
• Newport 4,109
• Charlestown 1,505
• Sunapee 898
• Plainfield 853
• Cornish 844
• Unity 522
• Grantham 495
• Acworth 436
• Springfield 349
• Washington 308
• Lempster 287
• Goshen 283
• Langdon 279
• Croydon 230

1930

County total: 24,286

• Claremont 12,377
• Newport 4,659
• Charlestown 1,644
• Sunapee 1,040
• Plainfield 858
• Cornish 855
• Unity 501
• Acworth 471
• Grantham 302
• Lempster 273
• Springfield 270
• Croydon 269
• Langdon 267
• Goshen 255
• Washington 245

1940

County total: 25,442

• Claremont 12,144
• Newport 5,304
• Charlestown 1,756
• Sunapee 1,071
• Plainfield 970
• Cornish 790
• Unity 669
• Acworth 477
• Grantham 367
• Springfield 364
• Goshen 352
• Croydon 312
• Lempster 312
• Washington 278
• Langdon 276

1950

County total: 26,441

• Claremont (city) 12,811
• Newport 5,131
• Charlestown 2,077
• Sunapee 1,108
• Plainfield 1,011
• Cornish 989
• Unity 653
• Acworth 418
• Langdon 378
• Grantham 359
• Goshen 356
• Croydon 349
• Springfield 324
• Lempster 309
• Washington 168

1960

County total: 28,067

• Claremont (city) 13,563
• Newport 5,458
• Charlestown 2,576
• Sunapee 1,164
• Cornish 1,106
• Plainfield 1,071
• Unity 708
• Acworth 371
• Goshen 351
• Langdon 338
• Grantham 332
• Croydon 312
• Springfield 283
• Lempster 272
• Washington 162

1970

County total: 30,949

• Claremont (city) 14,221
• Newport 5,899
• Charlestown 3,274
• Sunapee 1,384
• Plainfield 1,323
• Cornish 1,268
• Unity 709
• Acworth 459
• Croydon 396
• Goshen 395
• Grantham 366
• Lempster 360
• Langdon 337
• Springfield 310
• Washington 248

1980

County total: 36,063

• Claremont (city) 14,557
• Newport 6,229
• Charlestown 4,417
• Sunapee 2,312
• Plainfield 1,749
• Cornish 1,390
• Unity 1,092
• Grantham 704
• Lempster 637
• Acworth 590
• Goshen 549
• Springfield 532
• Croydon 457
• Langdon 437
• Washington 411

1990

County total: 38,592

• Claremont (city) 13,902
• Newport 6,110
• Charlestown 4,630
• Sunapee 2,559
• Plainfield 2,056
• Cornish 1,659
• Unity 1,341
• Grantham 1,247
• Lempster 947
• Springfield 788
• Acworth 776
• Goshen 742
• Washington 628
• Croydon 627
• Langdon 580

2000

County total: 40,458

• Claremont (city) 13,151
• Newport 6,269
• Charlestown 4,749
• Sunapee 3,055
• Plainfield 2,241
• Grantham 2,167
• Cornish 1,661
• Unity 1,530
• Lempster 971
• Springfield 945
• Washington 895
• Acworth 836
• Goshen 741
• Croydon 661
• Langdon 586

See also

• United States Census
  United States Census
  The United States Census is a decennial census mandated by the United States Constitution. The population is enumerated every 10 years and the results are used to allocate Congressional seats , electoral votes, and government program funding. The United States Census Bureau The United States Census...
  
  
• Sullivan County
  Sullivan County, New Hampshire
  -Demographics:As of the census of 2000, there were 40,458 people, 16,530 households, and 11,174 families residing in the county. The population density was 29/; . There were 20,158 housing units at an average density of 38 per square mile...
  
  , New Hampshire
  New Hampshire
  New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...