All counties in the State of Connecticut.
| Name | Status | Population census 2000-04-01 | Population estimate 2005-07-01 | Population estimate 2009-07-01 | |
|---|---|---|---|---|---|
| Fairfield | County | 882,567 | 891,015 | 901,208 | o |
| Hartford | County | 857,183 | 870,039 | 879,835 | o |
| Litchfield | County | 182,212 | 187,822 | 188,728 | o |
| Middlesex | County | 155,073 | 162,025 | 165,702 | o |
| New Haven | County | 824,011 | 839,408 | 848,006 | o |
| New London | County | 259,106 | 265,443 | 266,830 | o |
| Tolland | County | 136,366 | 146,492 | 150,461 | o |
| Windham | County | 109,089 | 115,172 | 117,518 | o |
| Connecticut | Federal State | 3,405,607 | 3,477,416 | 3,518,288 |
Contents: All incorporated places in the State of Connecticut.
| Name | Status | County | Population census 2000-04-01 | Population estimate 2005-07-01 | Population estimate 2009-07-01 | |
|---|---|---|---|---|---|---|
| Ansonia | City | New Haven | 18,554 | 18,590 | 18,514 | o |
| Bantam | Borough | Litchfield | 802 | 799 | 799 | o |
| Bridgeport | City | Fairfield | 139,529 | 137,364 | 137,298 | o |
| Bristol | City | Hartford | 60,227 | 60,869 | 61,027 | o |
| Danbury | City | Fairfield | 74,838 | 77,650 | 79,743 | o |
| Danielson | Borough | Windham | 4,265 | 4,253 | 4,302 | o |
| Derby | City | New Haven | 12,391 | 12,441 | 12,385 | o |
| Fenwick | Borough | Middlesex | 52 | 54 | 53 | o |
| Groton | City | New London | 9,288 | 9,507 | 9,365 | o |
| Groton Long Point | Borough | New London | 667 | 681 | 692 | o |
| Hartford | City | Hartford | 124,121 | 123,614 | 124,060 | o |
| Jewett City | Borough | New London | 3,053 | 3,005 | 3,000 | o |
| Litchfield | Borough | Litchfield | 1,328 | 1,334 | 1,325 | o |
| Meriden | City | New Haven | 58,244 | 59,043 | 59,186 | o |
| Middletown | City | Middlesex | 45,565 | 46,947 | 48,383 | o |
| Milford | City | New Haven | 50,594 | 52,489 | 54,640 | o |
| Naugatuck | Borough | New Haven | 30,989 | 31,613 | 32,019 | o |
| New Britain | City | Hartford | 71,538 | 70,560 | 70,548 | o |
| New Haven | City | New Haven | 123,777 | 123,893 | 123,330 | o |
| New London | City | New London | 26,185 | 26,225 | 26,184 | o |
| Newtown | Borough | 1,843 | 1,812 | 1,814 | o | |
| Norwalk | City | Fairfield | 82,951 | 83,245 | 83,802 | o |
| Norwich | City | New London | 36,117 | 36,587 | 36,639 | o |
| Shelton | City | Fairfield | 38,101 | 38,869 | 40,305 | o |
| Stamford | City | Fairfield | 117,083 | 118,403 | 121,026 | o |
| Stonington | Borough | New London | 1,032 | 1,057 | 1,032 | o |
| Torrington | City | Litchfield | 35,202 | 35,541 | 35,408 | o |
| Waterbury | City | New Haven | 107,271 | 106,904 | 107,143 | o |
| West Haven | City | New Haven | 52,360 | 52,653 | 53,007 | o |
| Woodmont | Borough | New Haven | 1,711 | 1,744 | 1,784 | o |
Source: US Census Bureau (web).
2010-11-23WWW.CITYPOPULATION.DE© TH. BRINKHOFF