RANKING · 2010 CENSUS · 51 SHOWN OF 51

Most population gained, Connecticut cities · 2010

Connecticut cities that added the most residents from the 2000 census to 2010, by raw count of people rather than percentage. This list covers the 51 cities in Connecticut that qualify, ranked against each other statewide.

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ConnecticutAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01New Haven, CTCT138,774+6,153−190%

02Danbury, CTCT89,033+6,045−35%

03Stamford, CTCT139,535+5,560−38%

04Bridgeport, CTCT152,273+4,700−318%

05Middletown, CTCT48,439+4,481+1006%

06Norwich, CTCT40,001+4,376−443%

07Storrs, CTCT15,207+4,348−462%

08West Haven, CTCT55,351+3,204−293%

09Hartford, CTCT121,981+3,197−118%

10Waterbury, CTCT115,771+3,095−283%

11Norwalk, CTCT94,508+2,652−43%

12Meriden, CTCT60,810+2,624−312%

13New London, CTCT28,003+1,949−168%

14Willimantic, CTCT18,096+1,914–

15East Hartford, CTCT50,918+1,677−291%

16New Britain, CTCT76,286+1,668−142%

17Shelton, CTCT42,880+1,458−46%

18Newington, CTCT30,896+1,256+1182%

19Torrington, CTCT35,796+1,181−22%

20East Haven, CTCT27,806+1,068−48%

21North Haven, CTCT24,336+1,058+35%

22Naugatuck, CTCT32,230+873+140%

23Orange, CTCT14,315+723+79%

24Wallingford Center, CTCT18,208+700−320%

25Ansonia, CTCT19,216+695+360%

26Milford, CTCT51,215+677–

27Derby, CTCT12,925+511+166%

28Windsor Locks, CTCT12,579+455−244%

29Thompsonville, CTCT7,927+452−236%

30Ridgefield, CTCT6,970+433−49%

31Oakville, CTCT9,276+429−449%

32Bristol, CTCT62,341+415−172%

33Bethel, CTCT11,404+412+36%

34Wethersfield, CTCT27,250+397−36%

35Winsted, CTCT6,977+391−142%

36Groton, CTCT10,160+379+119%

37Portland, CTCT5,944+328−395%

38Simsbury Center, CTCT6,198+233−5925%

39Glastonbury Center, CTCT7,266+230+207%

40Pawcatuck, CTCT5,577+150−19%

41Branford Center, CTCT6,305+84+79%

42Terryville, CTCT5,461+27−141%

43Cheshire, CTCT6,172-3−110%

44Kensington, CTCT9,962-82−135%

45New Milford, CTCT8,188-110−113%

46Rockville, CTCT7,072-234–

47Sherwood Manor, CTCT5,706-279−58%

48Hazardville, CTCT6,022-301+8%

49West Hartford, CTCT63,620-321−109%

50Southwood Acres, CTCT8,115-410−54%

51Conning Towers-Nautilus Park, CTCT8,460-1,407−717%

SHOWING 1–51 OF 51

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