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

| Year | Population | Year | Population | Year | Population | ||
| 1790 | 59,096 | 1880 | 146,608 | 1970 | 548,104 | ||
| 1800 | 64,273 | 1890 | 168,493 | 1980 | 594,338 | ||
| 1810 | 72,674 | 1900 | 184,735 | 1990 | 666,168 | ||
| 1820 | 72,749 | 1910 | 202,322 | 2000 | 783,600 | ||
| 1830 | 76,748 | 1920 | 223,003 | 2010 | 884,342 | ||
| 1840 | 78,085 | 1930 | 238,380 | 2020 | 963,209 | ||
| 1850 | 91,532 | 1940 | 266,505 | 2030 | 1,012,658 | ||
| 1860 | 112,216 | 1950 | 318,085 | ||||
| 1870 | 125,015 | 1960 | 446,292 |
| Census 2000 Population | Change from 1990 |
Percent Change |
|
| DELAWARE | 783,600 | 117,432 | 17.6 |
| Kent County | 126,697 | 15,704 | 14.1 |
| New Castle County | 500,265 | 58,319 | 13.2 |
| Sussex County | 156,638 | 43,409 | 38.3 |
SOURCE: U.S. Bureau of the Census
Also Available: Delaware News