| Area and year | Population | Births | Deaths | Natural increase | Net number of migrants | Population change |
| Puerto Rico | ||||||
| 1990 | 3,536,910 | 66,565 | 26,138 | 40,427 | -5,199 | 35,228 |
| 1991 | 3,571,328 | 64,498 | 26,321 | 38,177 | -4,536 | 33,641 |
| 1992 | 3,603,755 | 64,471 | 27,389 | 37,082 | -5,874 | 31,208 |
| 1993 | 3,643,638 | 65,258 | 28,493 | 36,765 | 11,805 | 48,570 |
| 1994 | 3,687,158 | 64,341 | 28,428 | 35,913 | 2,618 | 38,531 |
| 1995 | 3,731,006 | 63,502 | 30,184 | 33,318 | 15,894 | 49,212 |
| 1996 | 3,782,862 | 63,249 | 29,885 | 33,364 | 21,108 | 54,472 |
| 1997 | 3,828,061 | 64,273 | 29,285 | 34,988 | 919 | 35,907 |
| 1998 | 3,860,091 | 60,565 | 29,993 | 30,572 | -2,393 | 28,179 |
| 1999 | 3,889,507 | 60,715 | 30,066 | 30,649 | 0 | 30,649 |
| Guam | ||||||
| 1990 | 134,110 | 3,850 | 557 | 3,293 | 536 | 3,829 |
| 1991 | 138,083 | 3,922 | 608 | 3,314 | 802 | 4,116 |
| 1992 | 142,185 | 4,214 | 584 | 3,630 | 456 | 4,086 |
| 1993 | 143,619 | 4,409 | 576 | 3,833 | -5,051 | -1,218 |
| 1994 | 142,889 | 4,427 | 629 | 3,798 | -4,041 | -243 |
| 1995 | 143,856 | 4,191 | 626 | 3,565 | -1,388 | 2,177 |
| 1996 | 144,924 | 4,265 | 628 | 3,637 | -3,680 | -43 |
| 1997 | 146,330 | 4,318 | 638 | 3,680 | -827 | 2,853 |
| 1998 | 149,180 | 4,325 | 650 | 3,675 | -826 | 2,849 |
| 1999 | 151,968 | 4,184 | 626 | 3,558 | -827 | 2,731 |
| U.S. Virgin Islands | ||||||
| 1990 | 104,235 | 2,402 | 511 | 1,891 | 15 | 1,906 |
| 1991 | 106,185 | 2,517 | 538 | 1,979 | 15 | 1,994 |
| 1992 | 108,226 | 2,613 | 539 | 2,074 | 15 | 2,089 |
| 1993 | 110,258 | 2,529 | 569 | 1,960 | 15 | 1,975 |
| 1994 | 112,190 | 2,468 | 595 | 1,873 | 15 | 1,888 |
| 1995 | 113,896 | 2,170 | 661 | 1,509 | 15 | 1,524 |
| 1996 | 115,387 | 2,001 | 558 | 1,443 | 15 | 1,458 |
| 1997 | 116,882 | 2,124 | 607 | 1,517 | 15 | 1,532 |
| 1998 | 118,305 | 1,913 | 613 | 1,300 | 15 | 1,315 |
| 1999 | 119,615 | 1,921 | 630 | 1,291 | 16 | 1,307 |
| Commonwealth of the Northern Mariana Islands | ||||||
| 1990 | 44,037 | 1,186 | 143 | 1,043 | 1,508 | 2,551 |
| 1991 | 46,700 | 1,423 | 155 | 1,268 | 1,508 | 2,776 |
| 1992 | 49,519 | 1,511 | 157 | 1,354 | 1,508 | 2,862 |
| 1993 | 52,425 | 1,605 | 164 | 1,441 | 1,508 | 2,949 |
| 1994 | 55,298 | 1,426 | 137 | 1,289 | 1,508 | 2,797 |
| 1995 | 58,128 | 1,525 | 170 | 1,355 | 1,508 | 2,863 |
| 1996 | 60,951 | 1,469 | 165 | 1,304 | 1,481 | 2,785 |
| 1997 | 63,764 | 1,535 | 147 | 1,388 | 1,453 | 2,841 |
| 1998 | 66,527 | 1,420 | 161 | 1,259 | 1,426 | 2,685 |
| 1999 | 69,216 | 1,461 | 167 | 1,294 | 1,398 | 2,692 |
| American Samoa | ||||||
| 1990 | 47,199 | 1,852 | 240 | 1,612 | 294 | 1,906 |
| 1991 | 49,099 | 1,817 | 217 | 1,600 | 289 | 1,889 |
| 1992 | 51,049 | 1,953 | 226 | 1,727 | 285 | 2,012 |
| 1993 | 53,082 | 1,998 | 223 | 1,775 | 279 | 2,054 |
| 1994 | 55,072 | 1,892 | 242 | 1,650 | 274 | 1,924 |
| 1995 | 56,911 | 1,712 | 228 | 1,484 | 269 | 1,753 |
| 1996 | 58,656 | 1,706 | 234 | 1,472 | 265 | 1,737 |
| 1997 | 60,383 | 1,700 | 242 | 1,458 | 260 | 1,718 |
| 1998 | 62,092 | 1,695 | 250 | 1,445 | 255 | 1,700 |
| 1999 | 63,781 | 1,691 | 265 | 1,426 | 250 | 1,676 |
Source: U.S. Bureau of the Census, International Data Base, 12/29/99.