| |
| Age Group | Male | Female | Maryland, 2000, Universe: 001 Total population Universe Population: 5,296,486 | ||
| Population | Pct | Population | Pct |  | |
| Total | 2,557,794 | 48.3 | 2,738,692 | 51.7 | |
| 0- 4 | 180,314 | 3.4 | 173,079 | 3.3 | |
| 5- 9 | 200,138 | 3.8 | 191,180 | 3.6 | |
| 10-14 | 200,821 | 3.8 | 191,314 | 3.6 | |
| 15-19 | 181,754 | 3.4 | 174,365 | 3.3 | |
| 20-24 | 156,486 | 3.0 | 157,643 | 3.0 | |
| 25-29 | 166,474 | 3.1 | 176,396 | 3.3 | |
| 30-34 | 196,317 | 3.7 | 209,334 | 4.0 | |
| 35-39 | 225,189 | 4.3 | 239,599 | 4.5 | |
| 40-44 | 218,565 | 4.1 | 232,803 | 4.4 | |
| 45-49 | 191,095 | 3.6 | 208,295 | 3.9 | |
| 50-54 | 170,998 | 3.2 | 184,644 | 3.5 | |
| 55-59 | 128,851 | 2.4 | 139,796 | 2.6 | |
| 60-64 | 96,399 | 1.8 | 105,330 | 2.0 | |
| 65-69 | 77,449 | 1.5 | 90,793 | 1.7 | |
| 70-74 | 66,542 | 1.3 | 86,501 | 1.6 | |
| 75-79 | 51,439 | 1.0 | 77,052 | 1.5 | |
| 80-84 | 30,253 | 0.6 | 52,376 | 1.0 | |
| 85+ | 18,710 | 0.4 | 48,192 | 0.9 | |