RANKING · 2020 CENSUS · 20 SHOWN OF 20

Highest Czech population share, New Hampshire cities · 2020

New Hampshire cities ranked by the share of all residents who are Czech ancestry (2023 American Community Survey). A concentration measure: Czech residents as a percentage of total population. This list covers the 20 cities in New Hampshire that qualify, ranked against each other statewide.

New HampshireAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH SHAREVS 2000

01Newmarket, NHNH5,6792.5%–

02Hanover, NHNH8,4790.7%–

03Suncook, NHNH5,4320.6%–

04Nashua, NHNH92,4350.5%–

05Franklin, NHNH8,8390.4%–

06Lebanon, NHNH15,4810.3%–

07Rochester, NHNH33,7160.3%–

08Keene, NHNH23,0720.3%–

09Portsmouth, NHNH23,0280.2%–

10Laconia, NHNH17,2460.2%–

11Londonderry, NHNH12,2250.2%–

12Derry, NHNH21,3390.2%–

13Concord, NHNH44,5970.2%–

14Claremont, NHNH13,0320.2%–

15Durham, NHNH10,6810.1%–

16Milford, NHNH8,9560.1%–

17Dover, NHNH34,6230.1%–

18Manchester, NHNH116,8180.1%–

19Somersworth, NHNH12,1710.1%–

20Hampton, NHNH10,1010.1%–

SHOWING 1–20 OF 20

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