| |
| Age Group | Male | Female | Delaware, 2000, Universe: 001 Total population Universe Population: 783,600 | ||
| Population | Pct | Population | Pct |  | |
| Total | 380,541 | 48.6 | 403,059 | 51.4 | |
| 0- 4 | 26,278 | 3.4 | 25,253 | 3.2 | |
| 5- 9 | 28,712 | 3.7 | 27,101 | 3.5 | |
| 10-14 | 28,302 | 3.6 | 26,972 | 3.4 | |
| 15-19 | 27,944 | 3.6 | 27,688 | 3.5 | |
| 20-24 | 25,616 | 3.3 | 26,049 | 3.3 | |
| 25-29 | 25,436 | 3.2 | 25,783 | 3.3 | |
| 30-34 | 28,433 | 3.6 | 29,188 | 3.7 | |
| 35-39 | 31,757 | 4.1 | 32,897 | 4.2 | |
| 40-44 | 30,928 | 3.9 | 32,019 | 4.1 | |
| 45-49 | 26,500 | 3.4 | 28,275 | 3.6 | |
| 50-54 | 23,779 | 3.0 | 25,445 | 3.2 | |
| 55-59 | 18,770 | 2.4 | 20,550 | 2.6 | |
| 60-64 | 15,220 | 1.9 | 16,979 | 2.2 | |
| 65-69 | 14,081 | 1.8 | 15,871 | 2.0 | |
| 70-74 | 11,938 | 1.5 | 14,525 | 1.9 | |
| 75-79 | 8,767 | 1.1 | 12,481 | 1.6 | |
| 80-84 | 5,130 | 0.7 | 8,384 | 1.1 | |
| 85+ | 2,950 | 0.4 | 7,599 | 1.0 | |