Allegheny County, PA
Population and Components of Change
| Date |
Population |
%
Change |
Components of Change |
Total
Population
Change |
Births |
Deaths |
Inter-
national
Immigra-
tion |
Net
Domestic
Migration |
| 1970 | 1,605,133 | - | - |
- | - | - | - |
| 1971 | 1,593,400 | -0.7 | -11,733 |
- | - | - | - |
| 1972 | 1,573,400 | -1.3 | -20,000 |
- | - | - | - |
| 1973 | 1,548,900 | -1.6 | -24,500 |
- | - | - | - |
| 1974 | 1,525,900 | -1.5 | -23,000 |
- | - | - | - |
| 1975 | 1,513,400 | -0.8 | -12,500 |
- | - | - | - |
| 1976 | 1,499,400 | -0.9 | -14,000 |
- | - | - | - |
| 1977 | 1,486,300 | -0.9 | -13,100 |
- | - | - | - |
| 1978 | 1,473,800 | -0.8 | -12,500 |
- | - | - | - |
| 1979 | 1,454,300 | -1.3 | -19,500 |
- | - | - | - |
| 1980 | 1,450,195 | -0.3 | -4,105 |
- | - | - | - |
| 1981 | 1,437,549 | -0.9 | -12,646 |
21,977 | 20,253 | - | - |
| 1982 | 1,429,717 | -0.5 | -7,832 |
17,977 | 15,572 | - | - |
| 1983 | 1,420,639 | -0.6 | -9,078 |
17,988 | 15,723 | - | - |
| 1984 | 1,404,696 | -1.1 | -15,943 |
17,764 | 15,822 | - | - |
| 1985 | 1,380,315 | -1.7 | -24,381 |
17,678 | 15,604 | - | - |
| 1986 | 1,366,108 | -1.0 | -14,207 |
17,677 | 15,652 | - | - |
| 1987 | 1,355,061 | -0.8 | -11,047 |
17,618 | 15,721 | - | - |
| 1988 | 1,346,483 | -0.6 | -8,578 |
17,522 | 15,745 | - | - |
| 1989 | 1,339,463 | -0.5 | -7,020 |
17,594 | 15,563 | - | - |
| 1990 | 1,336,449 | -0.2 | -3,014 |
13,370 | 11,537 | - | - |
| 1991 | 1,338,435 | 0.1 | 1,986 |
22,438 | 18,852 | 760 | -6,136 |
| 1992 | 1,340,919 | 0.2 | 2,484 |
17,595 | 15,054 | 1,150 | -4,289 |
| 1993 | 1,338,289 | -0.2 | -2,630 |
17,203 | 15,545 | 925 | -6,818 |
| 1994 | 1,331,772 | -0.5 | -6,517 |
16,381 | 15,684 | 875 | -10,748 |
| 1995 | 1,322,460 | -0.7 | -9,312 |
15,930 | 15,443 | 991 | -13,477 |
| 1996 | 1,313,445 | -0.7 | -9,015 |
15,175 | 15,288 | 1,018 | -12,331 |
| 1997 | 1,304,196 | -0.7 | -9,249 |
14,818 | 15,512 | 908 | -12,434 |
| 1998 | 1,295,026 | -0.7 | -9,170 |
14,627 | 15,018 | 805 | -12,521 |
| 1999 | 1,287,247 | -0.6 | -7,779 |
14,867 | 15,110 | 778 | -11,602 |
| 2000 | 1,281,666 | -0.4 | -5,581 |
- | - | - | - |
| 2001 | 1,272,972 | -0.7 | -8,694 |
17,735 | 18,870 | 2,835 | -9,339 |
| 2002 | 1,266,248 | -0.5 | -6,724 |
13,530 | 15,380 | 2,236 | -6,190 |
| 2003 | 1,258,377 | -0.6 | -7,871 |
13,661 | 15,063 | 1,877 | -6,995 |
| 2004 | 1,247,530 | -0.9 | -10,847 |
13,514 | 15,070 | 1,830 | -10,223 |
| 2005 | 1,234,319 | -1.1 | -13,211 |
12,996 | 14,918 | 1,802 | -12,179 |
| 2006 | 1,224,993 | -0.8 | -9,326 |
12,838 | 14,560 | 1,892 | -9,089 |
| 2007 | 1,219,210 | -0.5 | -5,783 |
12,481 | 14,479 | 1,862 | -5,738 |
Note: Decade years represent April 1, Census data, not the mid-year estimates.
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