| |
| Age Group | Male | Female | Washington, 2010, Universe: 001 Total population Universe Population: 6,724,540 | ||
| Population | Pct | Population | Pct |  | |
| Total | 3,349,707 | 49.8 | 3,374,833 | 50.2 | |
| 0- 4 | 225,088 | 3.3 | 214,569 | 3.2 | |
| 5- 9 | 219,702 | 3.3 | 210,175 | 3.1 | |
| 10-14 | 224,717 | 3.3 | 213,516 | 3.2 | |
| 15-19 | 237,577 | 3.5 | 224,551 | 3.3 | |
| 20-24 | 238,131 | 3.5 | 223,381 | 3.3 | |
| 25-29 | 245,014 | 3.6 | 235,384 | 3.5 | |
| 30-34 | 229,863 | 3.4 | 223,520 | 3.3 | |
| 35-39 | 226,850 | 3.4 | 221,757 | 3.3 | |
| 40-44 | 232,587 | 3.5 | 227,111 | 3.4 | |
| 45-49 | 246,507 | 3.7 | 246,402 | 3.7 | |
| 50-54 | 245,997 | 3.7 | 249,299 | 3.7 | |
| 55-59 | 221,321 | 3.3 | 231,757 | 3.4 | |
| 60-64 | 186,378 | 2.8 | 195,709 | 2.9 | |
| 65-69 | 131,064 | 1.9 | 139,410 | 2.1 | |
| 70-74 | 88,760 | 1.3 | 97,986 | 1.5 | |
| 75-79 | 64,325 | 1.0 | 77,743 | 1.2 | |
| 80-84 | 45,743 | 0.7 | 65,375 | 1.0 | |
| 85+ | 40,083 | 0.6 | 77,188 | 1.1 | |