RANKING · 2000 CENSUS · 25 SHOWN OF 25

Fastest shrinking, New Hampshire cities · 2000

New Hampshire cities with the steepest population decline from the 1990 census to 2000. This list covers the 25 cities in New Hampshire that qualify, ranked against each other statewide.

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New HampshireAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION GROWTHVS –

01Portsmouth, NHNH23,028-19.8%–

02Berlin, NHNH9,502-12.6%–

03Claremont, NHNH13,032-5.4%–

04Durham, NHNH10,681-2.3%–

05Keene, NHNH23,072+0.6%–

06Franklin, NHNH8,839+1.2%–

07Somersworth, NHNH12,171+2.0%–

08Exeter, NHNH9,964+2.1%–

09Hudson, NHNH7,469+2.5%–

10Suncook, NHNH5,432+2.8%–

11Lebanon, NHNH15,481+3.2%–

12Milford, NHNH8,956+3.5%–

13East Merrimack, NHNH5,081+3.5%–

14Newmarket, NHNH5,679+4.2%–

15Laconia, NHNH17,246+4.2%–

16Rochester, NHNH33,716+6.9%–

17Dover, NHNH34,623+7.4%–

18Manchester, NHNH116,818+7.5%–

19Nashua, NHNH92,435+8.7%–

20Derry, NHNH21,339+10.8%–

21Concord, NHNH44,597+13.0%–

22Hampton, NHNH10,101+14.2%–

23Hanover, NHNH8,479+23.3%–

24South Hooksett, NHNH5,902+42.7%–

25Hooksett, NHNH5,876+43.8%–

SHOWING 1–25 OF 25

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS