Mercer 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 | 17,294 | - | - |
- | - | - | - |
| 1971 | 17,300 | 0.0 | 6 |
- | - | - | - |
| 1972 | 17,300 | 0.0 | 0 |
- | - | - | - |
| 1973 | 17,700 | 2.3 | 400 |
- | - | - | - |
| 1974 | 17,800 | 0.6 | 100 |
- | - | - | - |
| 1975 | 18,200 | 2.2 | 400 |
- | - | - | - |
| 1976 | 18,600 | 2.2 | 400 |
- | - | - | - |
| 1977 | 18,700 | 0.5 | 100 |
- | - | - | - |
| 1978 | 19,000 | 1.6 | 300 |
- | - | - | - |
| 1979 | 19,600 | 3.2 | 600 |
- | - | - | - |
| 1980 | 19,286 | -1.6 | -314 |
- | - | - | - |
| 1981 | 19,586 | 1.6 | 300 |
356 | 231 | - | - |
| 1982 | 19,468 | -0.6 | -118 |
291 | 181 | - | - |
| 1983 | 19,254 | -1.1 | -214 |
264 | 179 | - | - |
| 1984 | 18,977 | -1.4 | -277 |
246 | 183 | - | - |
| 1985 | 18,584 | -2.1 | -393 |
242 | 185 | - | - |
| 1986 | 18,106 | -2.6 | -478 |
219 | 169 | - | - |
| 1987 | 17,893 | -1.2 | -213 |
205 | 169 | - | - |
| 1988 | 17,771 | -0.7 | -122 |
205 | 211 | - | - |
| 1989 | 17,467 | -1.7 | -304 |
207 | 212 | - | - |
| 1990 | 17,290 | -1.0 | -177 |
155 | 143 | - | - |
| 1991 | 17,219 | -0.4 | -71 |
252 | 194 | 3 | -22 |
| 1992 | 17,156 | -0.4 | -63 |
201 | 175 | 3 | -7 |
| 1993 | 17,072 | -0.5 | -84 |
152 | 188 | 9 | 28 |
| 1994 | 17,083 | 0.1 | 11 |
176 | 163 | 15 | 70 |
| 1995 | 17,083 | 0.0 | 0 |
182 | 180 | 12 | 73 |
| 1996 | 17,026 | -0.3 | -57 |
169 | 180 | 7 | 35 |
| 1997 | 17,011 | -0.1 | -15 |
176 | 189 | 3 | 74 |
| 1998 | 16,979 | -0.2 | -32 |
193 | 175 | 3 | 27 |
| 1999 | 16,948 | -0.2 | -31 |
176 | 190 | 3 | 40 |
| 2000 | 16,957 | 0.1 | 9 |
- | - | - | - |
| 2001 | 16,909 | -0.3 | -48 |
244 | 244 | 5 | -41 |
| 2002 | 16,889 | -0.1 | -20 |
196 | 152 | 4 | -56 |
| 2003 | 16,772 | -0.7 | -117 |
195 | 204 | 2 | -95 |
| 2004 | 16,715 | -0.3 | -57 |
170 | 151 | 2 | -67 |
| 2005 | 16,585 | -0.8 | -130 |
164 | 155 | 4 | -130 |
| 2006 | 16,559 | -0.2 | -26 |
182 | 192 | 3 | -13 |
| 2007 | 16,490 | -0.4 | -69 |
187 | 189 | 3 | -72 |
Note: Decade years represent April 1, Census data, not the mid-year estimates.
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