| number | council | type | link map | country map |
|---|---|---|---|---|
| 1 | Carbondale City | city | Illinois | USA |
| 2 | Carlyle City | city | Illinois | USA |
| 3 | Carol Stream | village | Illinois | USA |
| 4 | Cary | village | Illinois | USA |
| 5 | Champaign City | city | Illinois | USA |
| 6 | Champaign County Regional Planning Commission | regional | Illinois | USA |
| 7 | Champaign-urbana Mass Transit District | regional | Illinois | USA |
| 8 | Channahon | village | Illinois | USA |
| 9 | Cherry Valley | village | Illinois | USA |
| 10 | Chicago Area Transporation Study | regional | Illinois | USA |
| 11 | Chicago City | city | Illinois | USA |
| 12 | Chicago Transit Authority | regional | Illinois | USA |
| 13 | Chillicothe City | city | Illinois | USA |
| 14 | Clark County | county | Illinois | USA |
| 15 | Coles County Regional Planning And Development Commission | regional | Illinois | USA |
| 16 | Collinsville City | city | Illinois | USA |
| 17 | Cook County | county | Illinois | USA |
| 18 | Crystal Lake City | city | Illinois | USA |
council web sites starting with C for Illinois within USA only ..... list all letters ..... list all regions ..... list all countries | ||||