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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SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Hazardville, CTCT6,022+49.4%−1017%

02Bethel, CTCT11,404+21.3%+523%

03Manchester, CTCT36,759+19.0%–

04Kensington, CTCT9,962+17.8%+528%

05Glastonbury Center, CTCT7,266+14.5%+1270%

06Cheshire, CTCT6,172+12.3%+2266%

07Stamford, CTCT139,535+10.5%+25%

08New Milford, CTCT8,188+9.8%−34%

09Simsbury Center, CTCT6,198+7.4%−10476%

10Danbury, CTCT89,033+7.0%−51%

11Greenwich, CTCT14,792+6.9%–

12Norwalk, CTCT94,508+6.5%+11%

13Rockville, CTCT7,072+6.0%–

14Old Greenwich, CTCT6,936+5.3%–

15Riverside, CTCT8,954+5.1%–

16Oakville, CTCT9,276+5.1%−459%

17Storrs, CTCT15,207+4.1%−142%

18Waterbury, CTCT115,771+3.7%−336%

19Branford Center, CTCT6,305+3.6%+331%

20Shelton, CTCT42,880+3.3%−56%

21New Haven, CTCT138,774+3.3%−162%

22Bridgeport, CTCT152,273+3.1%−302%

23Southwood Acres, CTCT8,115+2.9%−129%

24Wethersfield, CTCT27,250+2.4%−2%

25Willimantic, CTCT18,096+2.3%–

26Orange, CTCT14,315+2.3%−26%

27Cos Cob, CTCT7,546+1.5%–

28West Hartford, CTCT63,620+1.3%−78%

29New Britain, CTCT76,286+1.3%−124%

30Windsor Locks, CTCT12,579+0.9%−136%

31North Haven, CTCT24,336+0.7%−81%

32Bristol, CTCT62,341+0.6%−162%

33Conning Towers-Nautilus Park, CTCT8,460+0.4%−82%

34Wallingford Center, CTCT18,208+0.4%−121%

35Middletown, CTCT48,439+0.1%−85%

36West Haven, CTCT55,351+0.0%−101%

37Meriden, CTCT60,810-0.0%−99%

38Newington, CTCT30,896-0.1%−125%

39East Hartford, CTCT50,918-0.4%−77%

40Ridgefield, CTCT6,970-0.6%−105%

41Sherwood Manor, CTCT5,706-0.7%−93%

42Thompsonville, CTCT7,927-0.7%−81%

43Portland, CTCT5,944-0.8%−57%

44Norwich, CTCT40,001-0.9%−73%

45New London, CTCT28,003-0.9%−91%

46Naugatuck, CTCT32,230-1.1%−191%

47Milford, CTCT51,215-1.4%–

48Ansonia, CTCT19,216-1.7%−310%

49Putnam, CTCT7,120-2.1%–

50Torrington, CTCT35,796-2.4%−153%

51Hartford, CTCT121,981-3.0%−77%

52Pawcatuck, CTCT5,577-3.4%−197%

53Terryville, CTCT5,461-3.4%+182%

54Derby, CTCT12,925-4.5%−384%

55East Haven, CTCT27,806-4.6%−158%

56Winsted, CTCT6,977-6.7%−40%

57Groton, CTCT10,160-9.6%−648%

SHOWING 1–57 OF 57

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