RANKING · 2024 ACS · 26 SHOWN OF 26

Most population lost, New Hampshire cities

New Hampshire cities that lost the most residents from the 2020 census to 2024, by raw count of people rather than percentage. This list covers the 26 cities in New Hampshire that qualify, ranked against each other statewide. The median across all 26 is +14. Biggest climber in the top 100 since 2020: Derry, NH, up 14 places to #1.

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New HampshireAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01▲14Derry, NHNH21,339-1,540−170%

02▲8Hanover, NHNH8,479-599−139%

03▲11Durham, NHNH10,681-466+120%

04▲5Milford, NHNH8,956-256−192%

05▲11Exeter, NHNH9,964-145−171%

06▲6Newmarket, NHNH5,679-118−157%

07▼4Keene, NHNH23,072-108−181%

08▲10East Merrimack, NHNH5,081-95−174%

09▼3Suncook, NHNH5,432-69−147%

10▼3Hudson, NHNH7,469-65−135%

11▼10Berlin, NHNH9,502-42−97%

12▲13Nashua, NHNH92,435-28−100%

13▲13Manchester, NHNH116,818-1−100%

14▼3South Hooksett, NHNH5,902+14−99%

15▼7Franklin, NHNH8,839+58−43%

16▼14Claremont, NHNH13,032+129−117%

17Laconia, NHNH17,246+214−68%

18▼13Somersworth, NHNH12,171+256+12%

19▲3Concord, NHNH44,597+399−91%

20▼16Hampton, NHNH10,101+504−56%

21▼8Londonderry, NHNH12,225+580–

22▼1Portsmouth, NHNH23,028+589−111%

23▼3Hooksett, NHNH5,876+593−46%

24Dover, NHNH34,623+623−66%

25▼2Rochester, NHNH33,716+652−64%

26▼7Lebanon, NHNH15,481+717+86%

SHOWING 1–26 OF 26

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES