RANKING · 2020 CENSUS · 57 SHOWN OF 57

Fastest growing, Connecticut cities · 2020

Connecticut cities ranked by population growth from the 2010 census to 2020. This list covers the 57 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 GROWTHVS 2000

01Hazardville, CTCT6,022+49.4%+54.8 pts

02Bethel, CTCT11,404+21.3%+17.9 pts

03Manchester, CTCT36,759+19.0%–

04Kensington, CTCT9,962+17.8%+14.9 pts

05Glastonbury Center, CTCT7,266+14.5%+13.5 pts

06Cheshire, CTCT6,172+12.3%+11.8 pts

07Stamford, CTCT139,535+10.5%+2.1 pts

08New Milford, CTCT8,188+9.8%−5.1 pts

09Simsbury Center, CTCT6,198+7.4%+7.5 pts

10Danbury, CTCT89,033+7.0%−7.2 pts

11Greenwich, CTCT14,792+6.9%–

12Norwalk, CTCT94,508+6.5%+0.6 pts

13Rockville, CTCT7,072+6.0%–

14Old Greenwich, CTCT6,936+5.3%–

15Riverside, CTCT8,954+5.1%–

16Oakville, CTCT9,276+5.1%+6.5 pts

17Storrs, CTCT15,207+4.1%+14.0 pts

18Waterbury, CTCT115,771+3.7%+5.2 pts

19Branford Center, CTCT6,305+3.6%+2.7 pts

20Shelton, CTCT42,880+3.3%−4.3 pts

21New Haven, CTCT138,774+3.3%+8.5 pts

22Bridgeport, CTCT152,273+3.1%+4.6 pts

23Southwood Acres, CTCT8,115+2.9%+12.9 pts

24Wethersfield, CTCT27,250+2.4%−0.1 pts

25Willimantic, CTCT18,096+2.3%–

26Orange, CTCT14,315+2.3%−0.8 pts

27Cos Cob, CTCT7,546+1.5%–

28West Hartford, CTCT63,620+1.3%−4.5 pts

29New Britain, CTCT76,286+1.3%+6.5 pts

30Windsor Locks, CTCT12,579+0.9%+3.5 pts

31North Haven, CTCT24,336+0.7%−2.9 pts

32Bristol, CTCT62,341+0.6%+1.5 pts

33Conning Towers-Nautilus Park, CTCT8,460+0.4%−1.9 pts

34Wallingford Center, CTCT18,208+0.4%+2.2 pts

35Middletown, CTCT48,439+0.1%−0.8 pts

36West Haven, CTCT55,351+0.0%+3.1 pts

37Meriden, CTCT60,810-0.0%+2.0 pts

38Newington, CTCT30,896-0.1%−0.4 pts

39East Hartford, CTCT50,918-0.4%+1.3 pts

40Ridgefield, CTCT6,970-0.6%−14.0 pts

41Sherwood Manor, CTCT5,706-0.7%+9.8 pts

42Thompsonville, CTCT7,927-0.7%+3.2 pts

43Portland, CTCT5,944-0.8%+1.1 pts

44Norwich, CTCT40,001-0.9%+2.5 pts

45New London, CTCT28,003-0.9%+9.1 pts

46Naugatuck, CTCT32,230-1.1%−2.3 pts

47Milford, CTCT51,215-1.4%–

48Ansonia, CTCT19,216-1.7%−2.5 pts

49Putnam, CTCT7,120-2.1%–

50Torrington, CTCT35,796-2.4%−6.9 pts

51Hartford, CTCT121,981-3.0%+10.0 pts

52Pawcatuck, CTCT5,577-3.4%−6.9 pts

53Terryville, CTCT5,461-3.4%−2.2 pts

54Derby, CTCT12,925-4.5%−6.0 pts

55East Haven, CTCT27,806-4.6%−12.4 pts

56Winsted, CTCT6,977-6.7%+4.6 pts

57Groton, CTCT10,160-9.6%−11.4 pts

SHOWING 1–57 OF 57

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS