Buchanan County, IA
Population and Components of Change
| Date |
Population |
%
Change |
Components of Change |
Total
Population
Change |
Births |
Deaths |
Inter-
national
Immigra-
tion |
Net
Domestic
Migration |
| 1970 | 21,762 | - | - |
- | - | - | - |
| 1971 | 21,600 | -0.7 | -162 |
- | - | - | - |
| 1972 | 21,600 | 0.0 | 0 |
- | - | - | - |
| 1973 | 22,000 | 1.9 | 400 |
- | - | - | - |
| 1974 | 22,100 | 0.5 | 100 |
- | - | - | - |
| 1975 | 22,500 | 1.8 | 400 |
- | - | - | - |
| 1976 | 22,700 | 0.9 | 200 |
- | - | - | - |
| 1977 | 23,100 | 1.8 | 400 |
- | - | - | - |
| 1978 | 23,100 | 0.0 | 0 |
- | - | - | - |
| 1979 | 23,200 | 0.4 | 100 |
- | - | - | - |
| 1980 | 22,900 | -1.3 | -300 |
- | - | - | - |
| 1981 | 23,032 | 0.6 | 132 |
559 | 230 | - | - |
| 1982 | 22,976 | -0.2 | -56 |
451 | 195 | - | - |
| 1983 | 22,739 | -1.0 | -237 |
424 | 217 | - | - |
| 1984 | 22,253 | -2.1 | -486 |
387 | 214 | - | - |
| 1985 | 21,810 | -2.0 | -443 |
372 | 196 | - | - |
| 1986 | 21,079 | -3.4 | -731 |
325 | 185 | - | - |
| 1987 | 20,786 | -1.4 | -293 |
306 | 187 | - | - |
| 1988 | 20,761 | -0.1 | -25 |
318 | 194 | - | - |
| 1989 | 20,890 | 0.6 | 129 |
323 | 202 | - | - |
| 1990 | 20,844 | -0.2 | -46 |
252 | 149 | - | - |
| 1991 | 20,902 | 0.3 | 58 |
375 | 212 | 0 | -77 |
| 1992 | 20,952 | 0.2 | 50 |
308 | 219 | 6 | -24 |
| 1993 | 21,091 | 0.7 | 139 |
303 | 218 | 5 | 65 |
| 1994 | 21,230 | 0.7 | 139 |
294 | 215 | 1 | 77 |
| 1995 | 21,141 | -0.4 | -89 |
306 | 213 | 0 | -155 |
| 1996 | 21,126 | -0.1 | -15 |
286 | 218 | 7 | -68 |
| 1997 | 21,084 | -0.2 | -42 |
286 | 222 | 1 | -94 |
| 1998 | 21,088 | 0.0 | 4 |
291 | 217 | 15 | -94 |
| 1999 | 21,158 | 0.3 | 70 |
287 | 226 | 12 | -57 |
| 2000 | 21,093 | -0.3 | -65 |
- | - | - | - |
| 2001 | 20,942 | -0.7 | -151 |
362 | 217 | 1 | -280 |
| 2002 | 20,758 | -0.9 | -184 |
306 | 205 | 1 | -275 |
| 2003 | 20,774 | 0.1 | 16 |
309 | 218 | 0 | -48 |
| 2004 | 20,849 | 0.4 | 75 |
301 | 197 | 1 | -16 |
| 2005 | 20,757 | -0.4 | -92 |
275 | 199 | 1 | -153 |
| 2006 | 20,844 | 0.4 | 87 |
330 | 170 | 1 | -64 |
| 2007 | 20,903 | 0.3 | 59 |
328 | 204 | 1 | -59 |
| 2008 | 21,032 | 0.6 | 129 |
322 | 198 | 0 | 14 |
Note: Decade years represent April 1, Census data, not the mid-year estimates.
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