Several Factors Have Led to Population Changes in the Chicago Region
State
Population Change
Natural Growth
International Migration
Domestic Migration
Sum of components
Illinois
344
406
328
-391
343
Ohio
111
218
75
-177
116
Michigan
182
236
123
-165
194
Indiana
191
159
56
-17
198
Wisconsin
172
119
46
15
180
Kentucky
131
77
27
32
137

Note: Natural growth is the number of births minus the number of deaths.

Source: U.S. Census Bureau