Connecticut
People per square mile, 1990:
People per square mile, 2000:
Historic & Projected Growth
1790 to 2030

| Year | Population | Year | Population | Year | Population | ||
| 1790 | 237,946 | 1880 | 622,700 | 1970 | 3,032,217 | ||
| 1800 | 251,002 | 1890 | 746,258 | 1980 | 3,107,564 | ||
| 1810 | 261,942 | 1900 | 908,420 | 1990 | 3,287,116 | ||
| 1820 | 275,248 | 1910 | 1,114,756 | 2000 | 3,405,565 | ||
| 1830 | 297,675 | 1920 | 1,380,631 | 2010 | 3,577,490 | ||
| 1840 | 309,978 | 1930 | 1,606,903 | 2020 | 3,675,650 | ||
| 1850 | 370,792 | 1940 | 1,709,242 | 2030 | 3,688,630 | ||
| 1860 | 460,147 | 1950 | 2,007,280 | ||||
| 1870 | 537,454 | 1960 | 2,535,234 |
Population By County
| Census 2000 Population |
Change from 1990 |
Percent Change |
|
| CONNECTICUT | 3,405,565 | 118,449 | 3.6 |
| Fairfield County | 882,567 | 54,922 | 6.6 |
| Hartford County | 857,183 | 5,400 | 0.6 |
| Litchfield County | 182,193 | 8,101 | 4.7 |
| Middlesex County | 155,071 | 11,875 | 8.3 |
| New Haven County | 824,008 | 19,789 | 2.5 |
| New London County | 259,088 | 4,131 | 1.6 |
| Tolland County | 136,364 | 7,665 | 6.0 |
| Windham County | 109,091 | 6,566 | 6.4 |
SOURCE: U.S. Bureau of the Census
Also available: Connecticut News