All counties in the State of Connecticut.
| Name | Status | Population census 2000-04-01 | Population census 2010-04-01 | Population estimate 2011-07-01 | |
|---|---|---|---|---|---|
| Fairfield | County | 882,622 | 916,829 | 927,567 | o |
| Hartford | County | 857,184 | 894,017 | 896,248 | o |
| Litchfield | County | 182,183 | 189,927 | 188,923 | o |
| Middlesex | County | 155,088 | 165,676 | 166,384 | o |
| New Haven | County | 823,993 | 862,474 | 862,812 | o |
| New London | County | 259,108 | 274,055 | 274,091 | o |
| Tolland | County | 136,377 | 152,691 | 152,487 | o |
| Windham | County | 109,095 | 118,428 | 118,205 | o |
| Connecticut | Federal State | 3,405,650 | 3,574,097 | 3,586,717 |
All incorporated places in the State of Connecticut.
| Name | Status | County | Population census 2000-04-01 | Population census 2010-04-01 | Population estimate 2011-07-01 | |
|---|---|---|---|---|---|---|
| Ansonia | City | New Haven | 18,554 | 19,249 | 19,219 | o |
| Bantam | Borough | Litchfield | 802 | 759 | 754 | o |
| Bridgeport | City | Fairfield | 139,529 | 144,229 | 145,638 | o |
| Bristol | City | Hartford | 60,227 | 60,477 | 60,525 | o |
| Danbury | City | Fairfield | 74,838 | 80,893 | 81,671 | o |
| Danielson | Borough | Windham | 4,265 | 4,051 | 4,042 | o |
| Derby | City | New Haven | 12,391 | 12,902 | 12,882 | o |
| Fenwick | Borough | Middlesex | 52 | 43 | 43 | o |
| Groton | City | New London | 9,288 | 10,389 | 10,369 | o |
| Groton Long Point | Borough | New London | 667 | 518 | 517 | o |
| Hartford | City | Hartford | 124,121 | 124,775 | 124,867 | o |
| Jewett City | Borough | New London | 3,053 | 3,487 | 3,479 | o |
| Litchfield | Borough | Litchfield | 1,328 | 1,258 | 1,251 | o |
| Meriden | City | New Haven | 58,244 | 60,868 | 60,770 | o |
| Middletown | City | Middlesex | 45,565 | 47,648 | 47,749 | o |
| Milford (balance) | City | New Haven | 50,594 | 51,271 | 51,189 | o |
| Naugatuck | Borough | New Haven | 30,989 | 31,862 | 31,810 | o |
| New Britain | City | Hartford | 71,538 | 73,206 | 73,261 | o |
| New Haven | City | New Haven | 123,777 | 129,779 | 129,585 | o |
| New London | City | New London | 26,185 | 27,620 | 27,569 | o |
| Newtown | Borough | 1,843 | 1,941 | 1,960 | o | |
| Norwalk | City | Fairfield | 82,951 | 85,603 | 86,460 | o |
| Norwich | City | New London | 36,117 | 40,493 | 40,408 | o |
| Shelton | City | Fairfield | 38,101 | 39,559 | 39,954 | o |
| Stamford | City | Fairfield | 117,083 | 122,643 | 123,868 | o |
| Stonington | Borough | New London | 1,032 | 929 | 927 | o |
| Torrington | City | Litchfield | 35,202 | 36,383 | 36,167 | o |
| Waterbury | City | New Haven | 107,271 | 110,366 | 110,189 | o |
| West Haven | City | New Haven | 52,360 | 55,564 | 55,477 | o |
| Woodmont | Borough | New Haven | 1,711 | 1,488 | 1,486 | o |
Source: US Census Bureau (web).
2012-07-02WWW.CITYPOPULATION.DE