RANKING · 2020 CENSUS · 26 SHOWN OF 26

Most densely populated, New Hampshire cities · 2020

New Hampshire cities ranked by residents per square mile (2023). This list covers the 26 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 Fastest shrinking Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Durham, NHNH10,6813,685+24%

02Manchester, NHNH116,8183,497+8%

03Nashua, NHNH92,4352,962+5%

04Newmarket, NHNH5,6792,575+13%

05Hudson, NHNH7,4692,450−4%

06Exeter, NHNH9,9642,248+4%

07Hanover, NHNH8,4792,008+11%

08Hampton, NHNH10,1011,763+5%

09Milford, NHNH8,9561,621+11%

10East Merrimack, NHNH5,0811,533+37%

11Suncook, NHNH5,4321,478+3%

12Derry, NHNH21,3391,428+1%

13Portsmouth, NHNH23,0281,402+6%

14Dover, NHNH34,6231,225+22%

15Somersworth, NHNH12,1711,210+3%

16Hooksett, NHNH5,876979+46%

17Londonderry, NHNH12,225953+2%

18South Hooksett, NHNH5,902874+11%

19Laconia, NHNH17,246850+3%

20Rochester, NHNH33,716722+14%

21Concord, NHNH44,597688+8%

22Keene, NHNH23,072621+2%

23Lebanon, NHNH15,481354+14%

24Franklin, NHNH8,839319+4%

25Claremont, NHNH13,032300−2%

26Berlin, NHNH9,502154−9%

SHOWING 1–26 OF 26

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES