| |
| Age Group | Male | Female | Pennsylvania, 2000, Universe: 001 Total population Universe Population: 12,281,054 | ||
| Population | Pct | Population | Pct |  | |
| Total | 5,929,663 | 48.3 | 6,351,391 | 51.7 | |
| 0- 4 | 372,448 | 3.0 | 355,356 | 2.9 | |
| 5- 9 | 424,244 | 3.5 | 403,701 | 3.3 | |
| 10-14 | 443,602 | 3.6 | 420,247 | 3.4 | |
| 15-19 | 433,692 | 3.5 | 417,294 | 3.4 | |
| 20-24 | 372,883 | 3.0 | 373,203 | 3.0 | |
| 25-29 | 366,302 | 3.0 | 366,399 | 3.0 | |
| 30-34 | 410,504 | 3.3 | 417,281 | 3.4 | |
| 35-39 | 468,805 | 3.8 | 482,595 | 3.9 | |
| 40-44 | 492,309 | 4.0 | 504,367 | 4.1 | |
| 45-49 | 448,805 | 3.7 | 459,845 | 3.7 | |
| 50-54 | 389,762 | 3.2 | 406,620 | 3.3 | |
| 55-59 | 297,574 | 2.4 | 322,395 | 2.6 | |
| 60-64 | 241,186 | 2.0 | 270,470 | 2.2 | |
| 65-69 | 218,129 | 1.8 | 262,527 | 2.1 | |
| 70-74 | 211,385 | 1.7 | 277,231 | 2.3 | |
| 75-79 | 169,078 | 1.4 | 253,233 | 2.1 | |
| 80-84 | 103,305 | 0.8 | 186,710 | 1.5 | |
| 85+ | 65,650 | 0.5 | 171,917 | 1.4 | |