Piatt County, IL
Population and Components of Change
| Date |
Population |
%
Change |
Components of Change |
Total
Population
Change |
Births |
Deaths |
Inter-
national
Immigra-
tion |
Net
Domestic
Migration |
| 1970 | 15,509 | - | - |
- | - | - | - |
| 1971 | 15,700 | 1.2 | 191 |
- | - | - | - |
| 1972 | 15,900 | 1.3 | 200 |
- | - | - | - |
| 1973 | 16,000 | 0.6 | 100 |
- | - | - | - |
| 1974 | 16,000 | 0.0 | 0 |
- | - | - | - |
| 1975 | 16,200 | 1.3 | 200 |
- | - | - | - |
| 1976 | 16,400 | 1.2 | 200 |
- | - | - | - |
| 1977 | 16,400 | 0.0 | 0 |
- | - | - | - |
| 1978 | 16,500 | 0.6 | 100 |
- | - | - | - |
| 1979 | 16,500 | 0.0 | 0 |
- | - | - | - |
| 1980 | 16,581 | 0.5 | 81 |
- | - | - | - |
| 1981 | 16,701 | 0.7 | 120 |
282 | 195 | - | - |
| 1982 | 16,493 | -1.2 | -208 |
219 | 169 | - | - |
| 1983 | 16,404 | -0.5 | -89 |
217 | 177 | - | - |
| 1984 | 16,305 | -0.6 | -99 |
214 | 154 | - | - |
| 1985 | 16,192 | -0.7 | -113 |
221 | 142 | - | - |
| 1986 | 15,978 | -1.3 | -214 |
208 | 143 | - | - |
| 1987 | 15,830 | -0.9 | -148 |
183 | 153 | - | - |
| 1988 | 15,777 | -0.3 | -53 |
183 | 164 | - | - |
| 1989 | 15,571 | -1.3 | -206 |
181 | 147 | - | - |
| 1990 | 15,548 | -0.1 | -23 |
126 | 102 | - | - |
| 1991 | 15,602 | 0.3 | 54 |
222 | 217 | 2 | 84 |
| 1992 | 15,650 | 0.3 | 48 |
179 | 169 | 5 | 62 |
| 1993 | 15,919 | 1.7 | 269 |
213 | 172 | 5 | 255 |
| 1994 | 15,904 | -0.1 | -15 |
201 | 141 | 0 | -49 |
| 1995 | 16,037 | 0.8 | 133 |
195 | 156 | 1 | 128 |
| 1996 | 16,144 | 0.7 | 107 |
182 | 157 | 2 | 111 |
| 1997 | 16,311 | 1.0 | 167 |
190 | 163 | 1 | 164 |
| 1998 | 16,231 | -0.5 | -80 |
204 | 156 | 3 | -97 |
| 1999 | 16,388 | 1.0 | 157 |
189 | 165 | 6 | 163 |
| 2000 | 16,365 | -0.1 | -23 |
- | - | - | - |
| 2001 | 16,328 | -0.2 | -37 |
237 | 179 | 5 | -91 |
| 2002 | 16,169 | -1.0 | -159 |
138 | 155 | 3 | -133 |
| 2003 | 16,295 | 0.8 | 126 |
181 | 159 | 1 | 117 |
| 2004 | 16,357 | 0.4 | 62 |
192 | 141 | 4 | 18 |
| 2005 | 16,507 | 0.9 | 150 |
198 | 161 | 4 | 119 |
| 2006 | 16,509 | 0.0 | 2 |
183 | 148 | 3 | -30 |
| 2007 | 16,493 | -0.1 | -16 |
211 | 159 | 2 | -63 |
Note: Decade years represent April 1, Census data, not the mid-year estimates.
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