Summary: Summary of age-related census data for 1990 and 2000
| | Amount |
| | 2000 | | 1990 | |
| | Massachusetts | National | % National | Massachusetts | National | % National |
| Households | | | | | | |
| All | 2,443,580 | 105,480,101 | 2.3% | 2,247,110 | 91,947,410 | 2.4% |
| Age 65+ | 604,481 | 24,672,708 | 2.4% | 575,808 | 22,154,422 | 2.6% |
| Alone | 256,137 | 9,722,857 | 2.6% | 243,334 | 8,824,845 | 2.8% |
| Not Alone | 348,344 | 14,949,851 | 2.3% | 332,474 | 13,329,577 | 2.5% |
| | | | | | | |
| Population | | | | | | |
| All Ages | 6,349,097 | 281,421,906 | 2.3% | 6,016,425 | 248,709,873 | 2.4% |
| Under 5 years | 397,268 | 19,175,798 | 2.1% | 412,473 | 18,354,443 | 2.2% |
| 5 to 9 years | 430,861 | 20,549,505 | 2.1% | 378,035 | 18,099,179 | 2.1% |
| 10 to 14 years | 431,247 | 20,528,072 | 2.1% | 348,093 | 17,114,249 | 2.0% |
| 15 to 19 years | 415,737 | 20,219,890 | 2.1% | 409,934 | 17,754,015 | 2.3% |
| 20 to 24 years | 404,279 | 18,964,001 | 2.1% | 513,639 | 19,020,312 | 2.7% |
| 25 to 34 years | 926,788 | 39,891,724 | 2.3% | 1,101,361 | 43,175,932 | 2.6% |
| 35 to 44 years | 1,062,995 | 45,148,527 | 2.4% | 918,456 | 37,578,903 | 2.4% |
| 45 to 54 years | 873,353 | 37,677,952 | 2.3% | 600,095 | 25,223,086 | 2.4% |
| 55 to 59 years | 310,002 | 13,469,237 | 2.3% | 253,458 | 10,531,756 | 2.4% |
| 60 to 64 years | 236,405 | 10,805,447 | 2.2% | 261,597 | 10,616,167 | 2.5% |
| 65 to 74 years | 427,830 | 18,390,986 | 2.3% | 459,881 | 18,106,558 | 2.5% |
| 75 to 84 years | 315,640 | 12,361,180 | 2.6% | 267,194 | 10,055,108 | 2.7% |
| 85 years and over | 116,692 | 4,239,587 | 2.8% | 92,209 | 3,080,165 | 3.0% |
| | | | | | | |
| Under Age 15 | 1,259,376 | 60,253,375 | 2.1% | 1,138,601 | 53,567,871 | 2.1% |
| Age 15-24 | 820,016 | 39,183,891 | 2.1% | 923,573 | 36,774,327 | 2.5% |
| Age 25-34 | 926,788 | 39,891,724 | 2.3% | 1,101,361 | 43,175,932 | 2.6% |
| Age 35-44 | 1,062,995 | 45,148,527 | 2.4% | 918,456 | 37,578,903 | 2.4% |
| Age 45-54 | 873,353 | 37,677,952 | 2.3% | 600,095 | 25,223,086 | 2.4% |
| Age 55-64 | 546,407 | 24,274,684 | 2.3% | 515,055 | 21,147,923 | 2.4% |
| Age 65-74 | 427,830 | 18,390,986 | 2.3% | 459,881 | 18,106,558 | 2.5% |
| Age 75-84 | 315,640 | 12,361,180 | 2.6% | 267,194 | 10,055,108 | 2.7% |
| Age 85+ | 116,692 | 4,239,587 | 2.8% | 92,209 | 3,080,165 | 3.0% |
| | | | | | | |
| Under Age 55 | 4,942,528 | 222,155,469 | 2.2% | 4,682,086 | 196,320,119 | 2.4% |
| Age 55+ | 1,406,569 | 59,266,437 | 2.4% | 1,334,339 | 52,389,754 | 2.5% |
| Age 65+ | 860,162 | 34,991,753 | 2.5% | 819,284 | 31,241,831 | 2.6% |
| Age 75+ | 432,332 | 16,600,767 | 2.6% | 359,403 | 13,135,273 | 2.7% |
| Age 85+ | 116,692 | 4,239,587 | 2.8% | 92,209 | 3,080,165 | 3.0% |
| | | | | | | |
| Age 65+ population living alone | 30% | 28% | | 30% | 28% | |
| | | | | | | |
| | 1990-2000 Change |
| | Amount of Change | Percentage Change |
| | Massachusetts | National | % National | Massachusetts | National | Difference |
| Households | | | | | | |
| All | 196,470 | 13,532,691 | 1.5% | 9% | 15% | (6%) |
| Age 65+ | 28,673 | 2,518,286 | 1.1% | 5% | 11% | (6%) |
| Alone | 12,803 | 898,012 | 1.4% | 5% | 10% | (5%) |
| Not Alone | 15,870 | 1,620,274 | 1.0% | 5% | 12% | (7%) |
| | | | | | | |
| Population | | | | | | |
| All Ages | 332,672 | 32,712,033 | 1.0% | 6% | 13% | (7%) |
| Under 5 years | (15,205) | 821,355 | (1.9%) | (4%) | 4% | (8%) |
| 5 to 9 years | 52,826 | 2,450,326 | 2.2% | 14% | 14% | - |
| 10 to 14 years | 83,154 | 3,413,823 | 2.4% | 24% | 20% | 4% |
| 15 to 19 years | 5,803 | 2,465,875 | 0.2% | 1% | 14% | (13%) |
| 20 to 24 years | (109,360) | (56,311) | (194.2%) | (21%) | - | (21%) |
| 25 to 34 years | (174,573) | (3,284,208) | (5.3%) | (16%) | (8%) | (8%) |
| 35 to 44 years | 144,539 | 7,569,624 | 1.9% | 16% | 20% | (4%) |
| 45 to 54 years | 273,258 | 12,454,866 | 2.2% | 46% | 49% | (3%) |
| 55 to 59 years | 56,544 | 2,937,481 | 1.9% | 22% | 28% | (6%) |
| 60 to 64 years | (25,192) | 189,280 | (13.3%) | (10%) | 2% | (12%) |
| 65 to 74 years | (32,051) | 284,428 | (11.3%) | (7%) | 2% | (9%) |
| 75 to 84 years | 48,446 | 2,306,072 | 2.1% | 18% | 23% | (5%) |
| 85 years and over | 24,483 | 1,159,422 | 2.1% | 27% | 38% | (11%) |
| | | | | | | |
| Under Age 15 | 120,775 | 6,685,504 | 1.8% | 11% | 12% | (1%) |
| Age 15-24 | (103,557) | 2,409,564 | (4.3%) | (11%) | 7% | (18%) |
| Age 25-34 | (174,573) | (3,284,208) | (5.3%) | (16%) | (8%) | (8%) |
| Age 35-44 | 144,539 | 7,569,624 | 1.9% | 16% | 20% | (4%) |
| Age 45-54 | 273,258 | 12,454,866 | 2.2% | 46% | 49% | (3%) |
| Age 55-64 | 31,352 | 3,126,761 | 1.0% | 6% | 15% | (9%) |
| Age 65-74 | (32,051) | 284,428 | (11.3%) | (7%) | 2% | (9%) |
| Age 75-84 | 48,446 | 2,306,072 | 2.1% | 18% | 23% | (5%) |
| Age 85+ | 24,483 | 1,159,422 | 2.1% | 27% | 38% | (11%) |
| | | | | | | |
| Under Age 55 | 260,442 | 25,835,350 | 1.0% | 6% | 13% | (7%) |
| Age 55+ | 72,230 | 6,876,683 | 1.1% | 5% | 13% | (8%) |
| Age 65+ | 40,878 | 3,749,922 | 1.1% | 5% | 12% | (7%) |
| Age 75+ | 72,929 | 3,465,494 | 2.1% | 20% | 26% | (6%) |
| Age 85+ | 24,483 | 1,159,422 | 2.1% | 27% | 38% | (11%) |
| | | | | | | |
| | Percent of Total |
| | 2000 | 1990 |
| | Massachusetts | National | Difference | Massachusetts | National | Difference |
| Households | | | | | | |
| Age 65+ | 25% | 23% | 2% | 26% | 24% | 2% |
| Alone | 10% | 9% | 1% | 11% | 10% | 1% |
| Not Alone | 14% | 14% | - | 15% | 14% | 1% |
| | | | | | | |
| Population | | | | | | |
| Under 5 years | 6% | 7% | (1%) | 7% | 7% | - |
| 5 to 9 years | 7% | 7% | - | 6% | 7% | (1%) |
| 10 to 14 years | 7% | 7% | - | 6% | 7% | (1%) |
| 15 to 19 years | 7% | 7% | - | 7% | 7% | - |
| 20 to 24 years | 6% | 7% | (1%) | 9% | 8% | 1% |
| 25 to 34 years | 15% | 14% | 1% | 18% | 17% | 1% |
| 35 to 44 years | 17% | 16% | 1% | 15% | 15% | - |
| 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 | 7% | 7% | - | 8% | 7% | 1% |
| 75 to 84 years | 5% | 4% | 1% | 4% | 4% | - |
| 85 years and over | 2% | 2% | - | 2% | 1% | 1% |
| | | | | | | |
| Under Age 15 | 20% | 21% | (1%) | 19% | 22% | (3%) |
| Age 15-24 | 13% | 14% | (1%) | 15% | 15% | - |
| Age 25-34 | 15% | 14% | 1% | 18% | 17% | 1% |
| Age 35-44 | 17% | 16% | 1% | 15% | 15% | - |
| Age 45-54 | 14% | 13% | 1% | 10% | 10% | - |
| Age 55-64 | 9% | 9% | - | 9% | 9% | - |
| Age 65-74 | 7% | 7% | - | 8% | 7% | 1% |
| Age 75-84 | 5% | 4% | 1% | 4% | 4% | - |
| Age 85+ | 2% | 2% | - | 2% | 1% | 1% |
| | | | | | | |
| Under Age 55 | 78% | 79% | (1%) | 78% | 79% | (1%) |
| Age 55+ | 22% | 21% | 1% | 22% | 21% | 1% |
| Age 65+ | 14% | 12% | 2% | 14% | 13% | 1% |
| Age 75+ | 7% | 6% | 1% | 6% | 5% | 1% |
| Age 85+ | 2% | 2% | - | 2% | 1% | 1% |