RANKING · 2010 CENSUS · 51 SHOWN OF 51

Fastest shrinking, Connecticut cities · 2010

Connecticut cities with the steepest population decline from the 2000 census to 2010. This list covers the 51 cities in Connecticut that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Conning Towers-Nautilus Park, CTCT8,460-13.7%−703%

02Hazardville, CTCT6,022-6.1%+14%

03Southwood Acres, CTCT8,115-5.1%−49%

04Sherwood Manor, CTCT5,706-4.9%−53%

05Rockville, CTCT7,072-3.0%–

06New Milford, CTCT8,188-1.7%−111%

07Kensington, CTCT9,962-1.0%−134%

08West Hartford, CTCT63,620-0.5%−109%

09Cheshire, CTCT6,172-0.1%−110%

10Terryville, CTCT5,461+0.5%−141%

11Bristol, CTCT62,341+0.7%−172%

12Milford, CTCT51,215+1.3%–

13Branford Center, CTCT6,305+1.5%+77%

14Wethersfield, CTCT27,250+1.5%−37%

15New Britain, CTCT76,286+2.3%−145%

16Hartford, CTCT121,981+2.6%−120%

17Pawcatuck, CTCT5,577+2.7%−22%

18Naugatuck, CTCT32,230+2.8%+137%

19Waterbury, CTCT115,771+2.9%−286%

20Norwalk, CTCT94,508+3.2%−46%

21Glastonbury Center, CTCT7,266+3.2%+203%

22Torrington, CTCT35,796+3.4%−25%

23Bridgeport, CTCT152,273+3.4%−321%

24East Hartford, CTCT50,918+3.4%−295%

25Ansonia, CTCT19,216+3.7%+357%

26Windsor Locks, CTCT12,579+3.8%−248%

27Groton, CTCT10,160+3.8%+115%

28East Haven, CTCT27,806+3.8%−52%

29Shelton, CTCT42,880+3.8%−49%

30Wallingford Center, CTCT18,208+4.0%−324%

31Derby, CTCT12,925+4.1%+162%

32Simsbury Center, CTCT6,198+4.2%−5929%

33Newington, CTCT30,896+4.3%+1177%

34Meriden, CTCT60,810+4.5%−317%

35Bethel, CTCT11,404+4.5%+32%

36North Haven, CTCT24,336+4.6%+30%

37Stamford, CTCT139,535+4.7%−43%

38New Haven, CTCT138,774+5.0%−195%

39Oakville, CTCT9,276+5.0%−454%

40Winsted, CTCT6,977+5.3%−147%

41Orange, CTCT14,315+5.5%+74%

42Thompsonville, CTCT7,927+5.6%−241%

43Portland, CTCT5,944+5.9%−401%

44Ridgefield, CTCT6,970+6.0%−55%

45West Haven, CTCT55,351+6.1%−299%

46New London, CTCT28,003+7.6%−176%

47Danbury, CTCT89,033+8.1%−43%

48Middletown, CTCT48,439+10.4%+996%

49Willimantic, CTCT18,096+12.1%–

50Norwich, CTCT40,001+12.1%−456%

51Storrs, CTCT15,207+39.5%−501%

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