Summary: Summary of age-related census data for 1990 and 2000
| Amount | ||||||
| 2000 | 1990 | |||||
| Washington | National | % National | Washington | National | % National | |
| Households | ||||||
| All | 2,271,398 | 105,480,101 | 2.2% | 1,872,431 | 91,947,410 | 2.0% |
| Age 65+ | 463,007 | 24,672,708 | 1.9% | 401,440 | 22,154,422 | 1.8% |
| Alone | 184,924 | 9,722,857 | 1.9% | 162,520 | 8,824,845 | 1.8% |
| Not Alone | 278,083 | 14,949,851 | 1.9% | 238,920 | 13,329,577 | 1.8% |
| Population | ||||||
| All Ages | 5,894,121 | 281,421,906 | 2.1% | 4,866,692 | 248,709,873 | 2.0% |
| Under 5 years | 394,306 | 19,175,798 | 2.1% | 366,780 | 18,354,443 | 2.0% |
| 5 to 9 years | 425,909 | 20,549,505 | 2.1% | 371,093 | 18,099,179 | 2.1% |
| 10 to 14 years | 434,836 | 20,528,072 | 2.1% | 337,662 | 17,114,249 | 2.0% |
| 15 to 19 years | 427,968 | 20,219,890 | 2.1% | 322,711 | 17,754,015 | 1.8% |
| 20 to 24 years | 390,185 | 18,964,001 | 2.1% | 351,680 | 19,020,312 | 1.8% |
| 25 to 34 years | 841,130 | 39,891,724 | 2.1% | 855,188 | 43,175,932 | 2.0% |
| 35 to 44 years | 975,087 | 45,148,527 | 2.2% | 803,763 | 37,578,903 | 2.1% |
| 45 to 54 years | 845,972 | 37,677,952 | 2.2% | 501,543 | 25,223,086 | 2.0% |
| 55 to 59 years | 285,505 | 13,469,237 | 2.1% | 191,602 | 10,531,756 | 1.8% |
| 60 to 64 years | 211,075 | 10,805,447 | 2.0% | 189,382 | 10,616,167 | 1.8% |
| 65 to 74 years | 337,166 | 18,390,986 | 1.8% | 336,034 | 18,106,558 | 1.9% |
| 75 to 84 years | 240,897 | 12,361,180 | 1.9% | 182,953 | 10,055,108 | 1.8% |
| 85 years and over | 84,085 | 4,239,587 | 2.0% | 56,301 | 3,080,165 | 1.8% |
| Under Age 15 | 1,255,051 | 60,253,375 | 2.1% | 1,075,535 | 53,567,871 | 2.0% |
| Age 15-24 | 818,153 | 39,183,891 | 2.1% | 674,391 | 36,774,327 | 1.8% |
| Age 25-34 | 841,130 | 39,891,724 | 2.1% | 855,188 | 43,175,932 | 2.0% |
| Age 35-44 | 975,087 | 45,148,527 | 2.2% | 803,763 | 37,578,903 | 2.1% |
| Age 45-54 | 845,972 | 37,677,952 | 2.2% | 501,543 | 25,223,086 | 2.0% |
| Age 55-64 | 496,580 | 24,274,684 | 2.0% | 380,984 | 21,147,923 | 1.8% |
| Age 65-74 | 337,166 | 18,390,986 | 1.8% | 336,034 | 18,106,558 | 1.9% |
| Age 75-84 | 240,897 | 12,361,180 | 1.9% | 182,953 | 10,055,108 | 1.8% |
| Age 85+ | 84,085 | 4,239,587 | 2.0% | 56,301 | 3,080,165 | 1.8% |
| Under Age 55 | 4,735,393 | 222,155,469 | 2.1% | 3,910,420 | 196,320,119 | 2.0% |
| Age 55+ | 1,158,728 | 59,266,437 | 2.0% | 956,272 | 52,389,754 | 1.8% |
| Age 65+ | 662,148 | 34,991,753 | 1.9% | 575,288 | 31,241,831 | 1.8% |
| Age 75+ | 324,982 | 16,600,767 | 2.0% | 239,254 | 13,135,273 | 1.8% |
| Age 85+ | 84,085 | 4,239,587 | 2.0% | 56,301 | 3,080,165 | 1.8% |
| Age 65+ population living alone | 28% | 28% | 28% | 28% | ||
| 1990-2000 Change | ||||||
| Amount of Change | Percentage Change | |||||
| Washington | National | % National | Washington | National | Difference | |
| Households | ||||||
| All | 398,967 | 13,532,691 | 2.9% | 21% | 15% | 6% |
| Age 65+ | 61,567 | 2,518,286 | 2.4% | 15% | 11% | 4% |
| Alone | 22,404 | 898,012 | 2.5% | 14% | 10% | 4% |
| Not Alone | 39,163 | 1,620,274 | 2.4% | 16% | 12% | 4% |
| Population | ||||||
| All Ages | 1,027,429 | 32,712,033 | 3.1% | 21% | 13% | 8% |
| Under 5 years | 27,526 | 821,355 | 3.4% | 8% | 4% | 4% |
| 5 to 9 years | 54,816 | 2,450,326 | 2.2% | 15% | 14% | 1% |
| 10 to 14 years | 97,174 | 3,413,823 | 2.8% | 29% | 20% | 9% |
| 15 to 19 years | 105,257 | 2,465,875 | 4.3% | 33% | 14% | 19% |
| 20 to 24 years | 38,505 | (56,311) | 68.4% | 11% | - | 11% |
| 25 to 34 years | (14,058) | (3,284,208) | (0.4%) | (2%) | (8%) | 6% |
| 35 to 44 years | 171,324 | 7,569,624 | 2.3% | 21% | 20% | 1% |
| 45 to 54 years | 344,429 | 12,454,866 | 2.8% | 69% | 49% | 20% |
| 55 to 59 years | 93,903 | 2,937,481 | 3.2% | 49% | 28% | 21% |
| 60 to 64 years | 21,693 | 189,280 | 11.5% | 11% | 2% | 9% |
| 65 to 74 years | 1,132 | 284,428 | 0.4% | - | 2% | (2%) |
| 75 to 84 years | 57,944 | 2,306,072 | 2.5% | 32% | 23% | 9% |
| 85 years and over | 27,784 | 1,159,422 | 2.4% | 49% | 38% | 11% |
| Under Age 15 | 179,516 | 6,685,504 | 2.7% | 17% | 12% | 5% |
| Age 15-24 | 143,762 | 2,409,564 | 6.0% | 21% | 7% | 14% |
| Age 25-34 | (14,058) | (3,284,208) | (0.4%) | (2%) | (8%) | 6% |
| Age 35-44 | 171,324 | 7,569,624 | 2.3% | 21% | 20% | 1% |
| Age 45-54 | 344,429 | 12,454,866 | 2.8% | 69% | 49% | 20% |
| Age 55-64 | 115,596 | 3,126,761 | 3.7% | 30% | 15% | 15% |
| Age 65-74 | 1,132 | 284,428 | 0.4% | - | 2% | (2%) |
| Age 75-84 | 57,944 | 2,306,072 | 2.5% | 32% | 23% | 9% |
| Age 85+ | 27,784 | 1,159,422 | 2.4% | 49% | 38% | 11% |
| Under Age 55 | 824,973 | 25,835,350 | 3.2% | 21% | 13% | 8% |
| Age 55+ | 202,456 | 6,876,683 | 2.9% | 21% | 13% | 8% |
| Age 65+ | 86,860 | 3,749,922 | 2.3% | 15% | 12% | 3% |
| Age 75+ | 85,728 | 3,465,494 | 2.5% | 36% | 26% | 10% |
| Age 85+ | 27,784 | 1,159,422 | 2.4% | 49% | 38% | 11% |
| Percent of Total | ||||||
| 2000 | 1990 | |||||
| Washington | National | Difference | Washington | National | Difference | |
| Households | ||||||
| Age 65+ | 20% | 23% | (3%) | 21% | 24% | (3%) |
| Alone | 8% | 9% | (1%) | 9% | 10% | (1%) |
| Not Alone | 12% | 14% | (2%) | 13% | 14% | (1%) |
| Population | ||||||
| Under 5 years | 7% | 7% | - | 8% | 7% | 1% |
| 5 to 9 years | 7% | 7% | - | 8% | 7% | 1% |
| 10 to 14 years | 7% | 7% | - | 7% | 7% | - |
| 15 to 19 years | 7% | 7% | - | 7% | 7% | - |
| 20 to 24 years | 7% | 7% | - | 7% | 8% | (1%) |
| 25 to 34 years | 14% | 14% | - | 18% | 17% | 1% |
| 35 to 44 years | 17% | 16% | 1% | 17% | 15% | 2% |
| 45 to 54 years | 14% | 13% | 1% | 10% | 10% | - |
| 55 to 59 years | 5% | 5% | - | 4% | 4% | - |
| 60 to 64 years | 4% | 4% | - | 4% | 4% | - |
| 65 to 74 years | 6% | 7% | (1%) | 7% | 7% | - |
| 75 to 84 years | 4% | 4% | - | 4% | 4% | - |
| 85 years and over | 1% | 2% | (1%) | 1% | 1% | - |
| Under Age 15 | 21% | 21% | - | 22% | 22% | - |
| Age 15-24 | 14% | 14% | - | 14% | 15% | (1%) |
| Age 25-34 | 14% | 14% | - | 18% | 17% | 1% |
| Age 35-44 | 17% | 16% | 1% | 17% | 15% | 2% |
| Age 45-54 | 14% | 13% | 1% | 10% | 10% | - |
| Age 55-64 | 8% | 9% | (1%) | 8% | 9% | (1%) |
| Age 65-74 | 6% | 7% | (1%) | 7% | 7% | - |
| Age 75-84 | 4% | 4% | - | 4% | 4% | - |
| Age 85+ | 1% | 2% | (1%) | 1% | 1% | - |
| Under Age 55 | 80% | 79% | 1% | 80% | 79% | 1% |
| Age 55+ | 20% | 21% | (1%) | 20% | 21% | (1%) |
| Age 65+ | 11% | 12% | (1%) | 12% | 13% | (1%) |
| Age 75+ | 6% | 6% | - | 5% | 5% | - |
| Age 85+ | 1% | 2% | (1%) | 1% | 1% | - |