16 counties
Counties in Illinois
Every county in Illinois with census demographics and aging-in-place contractor coverage. Ranked by population.
Cook County
5,225,367 residents15.2% 65+
DuPage County
930,559 residents16.4% 65+
Lake County
713,159 residents15.0% 65+
Will County
696,774 residents13.7% 65+
Kane County
517,254 residents14.5% 65+
McHenry County
311,133 residents15.5% 65+
Winnebago County
284,591 residents18.0% 65+
Madison County
265,512 residents17.7% 65+
St. Clair County
256,791 residents16.4% 65+
Champaign County
206,525 residents13.4% 65+
Sangamon County
196,122 residents18.5% 65+
Peoria County
181,186 residents17.7% 65+
McLean County
171,284 residents13.9% 65+
Rock Island County
143,819 residents19.8% 65+
Kendall County
132,795 residents10.8% 65+
Tazewell County
131,276 residents19.3% 65+