Table 1.  The Counties and the Most Populous Cities and Towns in 2010 in Connecticut:  2000 and 2010
(For information on confidentiality protection, nonsampling error, and definitions, see http://www.census.gov/prod/cen2010/pl94-171.pdf)
Population rank     Population Change, 2000 to 2010
             
2010 2000   Geographic area 2000 1 2010 Number Percent
             
    Connecticut………...………………………………………………. 3 405 565 3 574 097  168 532 4.9
             
    COUNTY        
             
1 1   Fairfield County…………………………………………………  882 567  916 829  34 262 3.9
2 2   Hartford County……………………………………………..  857 183  894 014  36 831 4.3
3 3   New Haven County……………………………………………  824 008  862 477  38 469 4.7
4 4   New London County………………………………………….  259 088  274 055  14 967 5.8
5 5   Litchfield County…………………………………………….  182 193  189 927  7 734 4.2
6 6   Middlesex County………………………………………….  155 071  165 676  10 605 6.8
7 7   Tolland County……………………………………………….  136 364  152 691  16 327 12.0
8 8   Windham County……………………………………………..  109 091  118 428  9 337 8.6
             
    CITY OR TOWN        
             
1 1   Bridgeport city……………………………………………….  139 529  144 229  4 700 3.4
2 2   New Haven city……………………………………………….  123 626  129 779  6 153 5.0
3 3   Hartford city………………………………………………….  121 578  124 775  3 197 2.6
4 4   Stamford city………………………………………………..  117 083  122 643  5 560 4.7
5 5   Waterbury city………………………………………………..  107 271  110 366  3 095 2.9
6 6   Norwalk city…………………………………………………..  82 951  85 603  2 652 3.2
7 7   Danbury city………………………………………………….  74 848  80 893  6 045 8.1
8 8   New Britain city…………………………………………………  71 538  73 206  1 668 2.3
9 9   West Hartford town………………………………………………  63 589  63 268 -  321 -0.5
10 10   Greenwich town……………………………………………..  61 101  61 171   70 0.1
11 14   Hamden town……………………………………………..  56 913  60 960  4 047 7.1
12 12   Meriden city…………………………………………………….  58 244  60 868  2 624 4.5
13 11   Bristol city…………………………………………………….  60 062  60 477   415 0.7
14 13   Fairfield town……………………………………………………  57 340  59 404  2 064 3.6
15 15   Manchester town……………………………………………..  54 740  58 241  3 501 6.4
16 16   West Haven city………………………………………………  52 360  55 564  3 204 6.1
17 17   Milford city…………………………………………………….  52 305  52 759   454 0.9
18 18   Stratford town………………………………………………….  49 976  51 384  1 408 2.8
19 19   East Hartford town………………………………………………  49 575  51 252  1 677 3.4
20 21   Middletown city……………………………………………….  43 167  47 648  4 481 10.4
               
1 Census 2000 counts are as published in Census 2000 reports and thus do not include any changes published subsequently due to boundary changes or to the Count Question Resolution program.
Source:  U.S. Census Bureau, Census 2000 Redistricting Data (Public Law 94-171) Summary File, Table PL1, and 2010 Census Redistricting Data (Public Law 94-171) Summary File, Table P1.