Fastest Growing Cities in Connecticut (2025)

168 cities

City
Rank
Change
2025 Pop.
2020 Pop.
Somers17.57%12,48110,079
Newington22.86%33,06730,420
Granby31.89%11,68310,891
Bloomfield41.58%22,58621,448
Middlebury51.47%8,1727,583
Stafford61.44%11,90511,411
New Haven71.35%139,027129,757
Oxford81.34%13,48312,708
Waterford91.31%20,35719,581
Brooklyn101.25%8,8308,380
Beacon Falls111.24%6,3626,007
Griswold121.19%11,90411,421
Berlin131.14%20,90120,133
Haddam141.13%8,9738,436
Shelton151.08%43,06540,762
New London161.01%28,12126,718
East Lyme170.98%19,30318,443
North Haven180.93%24,74924,161
Seymour190.91%17,26316,714
Eastford200.82%1,7171,650
Harwinton210.81%5,7045,474
Voluntown220.8%2,6542,567
Canterbury230.79%5,2225,046
Franklin240.79%1,9211,857
Goshen250.77%3,2823,150
Thompson260.76%9,5299,191
Wolcott270.71%16,54316,101
Middletown280.7%48,66346,965
Canton290.69%10,28810,085
Roxbury300.69%2,3292,255
Cheshire310.69%29,60628,612
Southbury320.66%20,39319,861
Washington330.65%3,7333,634
Killingly340.64%18,17717,710
Woodbury350.6%9,9829,712
Sterling360.6%3,6883,574
New Britain370.59%74,96372,755
Trumbull380.58%37,70736,607
Norwalk390.56%93,50290,891
Fairfield400.55%64,13961,485
Lyme410.54%2,4352,347
Orange420.53%14,47414,231
Newtown430.5%27,95327,034
Bristol440.47%62,18360,727
Woodstock450.46%8,4248,222
Darien460.45%22,21821,444
Prospect470.44%9,5639,372
Plymouth480.44%11,87011,648
Warren490.44%1,3791,349
Sharon500.43%2,7682,677
Thomaston510.43%7,5657,436
Watertown520.41%22,45622,085
Farmington530.38%27,00226,638
New Canaan540.37%21,01620,534
Plainfield550.36%15,30314,978
East Haddam560.36%9,0518,858
Bethlehem570.35%3,4453,387
Naugatuck580.34%32,03831,492
Hebron590.33%9,2069,071
Barkhamsted600.33%3,7013,641
Waterbury610.32%115,730113,880
Westport620.3%27,63627,066
Burlington630.29%9,8029,497
Plainville640.27%17,58717,452
Kent650.26%3,0823,017
Ledyard660.26%15,53915,388
Pomfret670.25%4,3354,267
Scotland680.25%1,5861,572
Cornwall690.25%1,5831,565
Derby700.25%12,46812,312
Killingworth710.24%6,2846,160
Willington720.23%5,5785,552
Tolland730.23%14,64214,530
East Hampton740.23%13,04912,691
Hampton750.23%1,7481,729
Putnam760.22%9,3549,214
Deep River770.22%4,4744,401
Westbrook780.22%6,9116,768
Ansonia790.21%19,08918,886
Ashford800.21%4,2474,190
Salisbury810.21%4,2584,187
Coventry820.2%12,35812,217
Marlborough830.2%6,1306,098
Columbia840.19%5,2885,269
Stamford850.19%136,735135,462
Monroe860.18%18,89918,767
East Windsor870.18%11,21011,144
Torrington880.17%35,67335,365
Hartland890.16%1,9181,897
Danbury900.15%86,38585,732
Litchfield910.14%8,3178,180
Avon920.14%18,93718,875
North Stonington930.14%5,1795,141
New Milford940.13%28,35027,977
Ellington950.13%17,03816,441
West Hartford960.13%64,12963,599
New Hartford970.12%6,7256,649
Old Lyme980.12%7,7147,608
Glastonbury990.12%35,28635,070
Chaplin1000.09%2,1612,150
Simsbury1010.09%24,99924,495
Southington1020.09%43,82143,427
Bridgeport1030.07%148,235147,717
Middlefield1040.07%4,2634,208
Salem1050.07%4,3254,202
Morris1060.04%2,2742,248
Preston1070.04%4,8334,788
Easton1080.04%7,6427,588
Cromwell1090.03%14,37314,221
Rocky Hill1100.03%20,72020,757
Essex1110.03%6,8066,726
Bolton1120.02%4,8364,847
Old Saybrook1130.02%10,57510,466
Manchester1140.01%59,42659,497
Clinton1150%13,40213,170
Canaan1160%1,0821,075
Guilford1170%22,02022,018
Stonington118-0.01%18,42918,318
Milford119-0.01%50,41350,433
South Windsor120-0.01%26,76526,868
Durham121-0.03%7,2007,140
Wethersfield122-0.03%27,09827,238
Mansfield123-0.03%25,38518,139
Stratford124-0.03%52,42052,223
Vernon125-0.03%30,57630,175
Windsor126-0.03%29,35229,341
Hartford127-0.04%119,583119,798
Bozrah128-0.04%2,4102,421
Portland129-0.04%9,4209,365
Norfolk130-0.06%1,5941,584
East Hartford131-0.07%50,58850,864
Winchester132-0.07%10,22210,204
Greenwich133-0.07%63,48863,344
Colebrook134-0.07%1,3661,356
Windsor Locks135-0.08%12,50912,576
Chester136-0.08%3,7553,738
Bethel137-0.08%20,64420,319
Weston138-0.09%10,32610,318
Lisbon139-0.1%4,2204,188
Andover140-0.1%3,1383,147
East Granby141-0.1%5,2085,208
Colchester142-0.1%15,47215,485
Bethany143-0.11%5,2595,282
Norwich144-0.12%39,78340,028
North Canaan145-0.13%3,1963,198
Lebanon146-0.14%7,0887,127
Redding147-0.15%8,6938,729
Wilton148-0.16%18,34018,406
Montville149-0.17%17,75218,069
Bridgewater150-0.18%1,6401,649
Sherman151-0.2%3,5163,512
Branford152-0.21%27,91528,124
Groton153-0.23%37,70238,343
Windham154-0.25%23,71523,857
Ridgefield155-0.27%24,79524,953
Brookfield156-0.28%17,39117,469
Meriden157-0.28%59,77360,617
Madison158-0.31%17,39017,620
Wallingford159-0.32%43,44944,222
Woodbridge160-0.32%8,9639,055
North Branford161-0.35%13,32113,506
West Haven162-0.35%54,40355,370
New Fairfield163-0.36%13,39113,529
East Haven164-0.4%27,31327,794
Sprague165-0.41%2,9162,967
Suffield166-0.43%15,51615,682
Hamden167-0.45%59,48260,332
Enfield168-1.09%39,91241,199

Connecticut Growth Overview

Connecticut's cities with over 1,000 residents show varied growth patterns from 2020 to 2025. Somers leads with 7.57% annualized growth, followed by Newington (2.86%) and Granby (1.89%). The largest population centers are Bridgeport (148,235), New Haven (139,027), and Stamford (136,735). Of the 168 cities over 1,000 population, 117 are growing while 51 experienced population decline. Overall, cities averaged 0.32% annualized growth, with total urban population growing by 1.68% annually.