Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Carmi Municipal Airport | Airport | 118 | White | 38 05 22 N | 088 07 22 W |
| Carner Landing Strip | Airport | 220 | Henderson | 40 54 47 N | 090 50 08 W |
| Carrillon Airport | Airport | 158 | Clinton | 38 44 02 N | 089 20 15 W |
| Cary Fire Department Heliport | Airport | 253 | Henry | 42 12 45 N | 088 15 08 W |
| Casa De Aero Park | Airport | 260 | Kane | 42 08 55 N | 088 33 35 W |
| Casey Municipal Airport | Airport | 199 | Clark | 39 18 08 N | 088 00 14 W |
| Cast Airport | Airport | 204 | Vermilion | 40 02 20 N | 087 46 54 W |
| Caterpillar Aurora Heliport | Airport | 201 | Kendall | 41 43 01 N | 088 21 33 W |
| Catlett Landing Strip | Airport | 198 | Vermilion | 40 03 44 N | 087 49 45 W |
| Cedar Ridge Airport | Airport | 198 | Hancock | 40 32 35 N | 091 19 51 W |
| Central Dupage Heliport | Airport | 232 | DuPage | 41 52 24 N | 088 09 16 W |
| Centralia Correctional Center Heliport | Airport | 142 | Clinton | 38 33 19 N | 089 11 38 W |
| Centralia Municipal Airport | Airport | 159 | Marion | 38 30 53 N | 089 05 31 W |
| CGH Medical Center Heliport | Airport | 204 | Whiteside | 41 48 17 N | 089 41 50 W |
| Champaign Airport (historical) | Airport | 232 | Champaign | 40 08 33 N | 088 16 33 W |
| Chatsworth RLA Airport | Airport | 225 | Livingston | 40 44 35 N | 088 17 28 W |
| Cheechako Airport | Airport | 259 | Ogle | 42 07 46 N | 088 59 32 W |
| Chester Wyss Airport | Airport | 259 | Stephenson | 42 25 30 N | 089 27 00 W |
| Chicago Airmail Field (historical) | Airport | 190 | Cook | 41 51 25 N | 087 50 20 W |
| Chicago Bridge and Iron Heliport | Airport | 203 | DuPage | 41 50 32 N | 087 57 00 W |
| Chicago Glider Club Gliderport | Airport | 180 | Will | 41 25 55 N | 088 14 50 W |
| Chicago Midway Airport | Airport | 185 | Cook | 41 47 09 N | 087 45 08 W |
| Chicago O'Hare International Airport | Airport | 201 | Cook | 41 58 46 N | 087 54 15 W |
| Chicagoland Airport (historical) | Airport | 202 | Lake | 42 11 35 N | 087 56 05 W |
| Childrens Memorial Hospital Heliport | Airport | 183 | Cook | 41 55 32 N | 087 38 47 W |
| Christ Hospital Heliport | Airport | 189 | Cook | 41 43 30 N | 087 43 45 W |
| Christmas Forest Airport | Airport | 186 | Henry | 41 32 21 N | 090 03 52 W |
| Cilco Peoria Downtown Heliport | Airport | 139 | Peoria | 40 41 15 N | 089 35 28 W |
| Clair Landing Strip | Airport | 198 | Hancock | 40 12 20 N | 091 14 35 W |
| Clapper Airport | Airport | 215 | Piatt | 40 09 10 N | 088 31 00 W |
| Clarence C Johnson Airport | Airport | 212 | Will | 41 23 04 N | 087 56 42 W |
| Clark Airport | Airport | 175 | McDonough | 40 19 33 N | 090 49 39 W |
| Clark Landing Strip | Airport | 193 | Hancock | 40 17 25 N | 091 01 15 W |
| Clarke Heliport | Airport | 244 | DuPage | 41 59 11 N | 088 06 04 W |
| Classen Field RLA Airport | Airport | 198 | Iroquois | 40 49 00 N | 087 59 30 W |
| Clay County Hospital Heliport | Airport | 148 | Clay | 38 40 31 N | 088 29 00 W |
| Clifford D Foster Airport | Airport | 232 | Ford | 40 27 20 N | 088 08 29 W |
| Clover Landing Strip | Airport | 224 | Henderson | 40 41 05 N | 090 57 07 W |
| Clow International Airport | Airport | 200 | Will | 41 41 45 N | 088 07 45 W |
| Cody Port RLA Airport | Airport | 202 | La Salle | 41 31 08 N | 088 50 15 W |
| Cole Airport | Airport | 205 | Rock Island | 41 30 35 N | 090 10 55 W |
| Coles County Memorial Airport | Airport | 219 | Coles | 39 28 40 N | 088 16 48 W |
| Collins Airstrip | Airport | 200 | Lee | 41 48 56 N | 089 36 27 W |
| Collinsville Holiday Inn Heliport | Airport | 128 | Madison | 38 40 48 N | 090 01 05 W |
| Collison Airport | Airport | 214 | Vermilion | 40 14 05 N | 087 48 36 W |
| Colonel Smith Memorial Airport | Airport | 190 | Macon | 39 59 15 N | 089 04 54 W |
| Colonial Acres Airport | Airport | 266 | DeKalb | 42 00 10 N | 088 38 45 W |
| Columbia Airport | Airport | 124 | Monroe | 38 27 02 N | 090 14 09 W |
| Community Hospital of Ottawa Heliport | Airport | 147 | La Salle | 41 21 26 N | 088 49 30 W |
| Community Memorial Hospital Heliport | Airport | 182 | Macoupin | 39 00 47 N | 089 47 20 W |
| Community Memorial Hospital Heliport | Airport | 231 | Warren | 40 55 18 N | 090 39 19 W |
| Compass Rose Airport | Airport | 289 | Boone | 42 27 20 N | 088 54 10 W |
| Condell Memorial Hospital Heliport | Airport | 220 | Lake | 42 16 30 N | 087 57 25 W |
| Continental Heliport | Airport | 180 | Cook | 41 52 18 N | 087 38 25 W |
| Cooch Landing Area | Airport | 208 | Douglas | 39 50 30 N | 088 27 30 W |
| Cooper Landing Field (historical) | Airport | 200 | Douglas | 39 47 21 N | 088 17 48 W |
| Corman Acres Airport | Airport | 220 | Macon | 39 45 58 N | 088 46 46 W |
| Corporetum Office Campus Heliport | Airport | 207 | DuPage | 41 48 38 N | 088 04 30 W |
| Corzatt Airport | Airport | 216 | Henderson | 40 48 39 N | 090 52 18 W |
| Cottonwood Airport | Airport | 230 | McLean | 40 25 27 N | 089 01 17 W |
| Cottonwood Airport | Airport | 223 | Winnebago | 42 17 30 N | 089 08 10 W |
| County Emergency Services-Disaster Agency Heliport | Airport | 224 | Champaign | 40 06 40 N | 088 11 04 W |
| County Poor Farm Airport | Airport | 210 | Ogle | 41 59 25 N | 089 19 53 W |
| Coursens Landing Airport | Airport | 209 | Jo Daviess | 42 25 25 N | 090 30 15 W |
| Covenant Medical Center Heliport | Airport | 222 | Champaign | 40 06 47 N | 088 14 03 W |
| Covey Airport | Airport | 191 | Johnson | 37 28 42 N | 088 48 12 W |
| Cramm Landing Area | Airport | 226 | Adams | 40 06 00 N | 091 17 01 W |
| Crawford Memorial Hospital Heliport | Airport | 169 | Crawford | 39 00 55 N | 087 45 00 W |
| Cribbet Airport | Airport | 194 | Macon | 39 43 40 N | 089 03 34 W |
| Crook RLA Airport | Airport | 174 | Monroe | 38 23 13 N | 090 11 30 W |
| Crossland Landing Strip | Airport | 206 | Hancock | 40 15 01 N | 091 04 24 W |
| Crystal Lake Holiday Inn Heliport | Airport | 273 | Henry | 42 13 14 N | 088 17 05 W |
| Cumberland Air Park | Airport | 192 | Cumberland | 39 18 50 N | 088 20 40 W |
| Curless Airport | Airport | 186 | Fulton | 40 15 46 N | 090 14 12 W |
| Curry Airport | Airport | 190 | Pike | 39 39 33 N | 090 42 00 W |
| Cushing Field Limited Airport | Airport | 194 | La Salle | 41 31 10 N | 088 36 20 W |
| Cwian Field | Airport | 181 | La Salle | 41 32 30 N | 088 41 20 W |
| Dacy Airport | Airport | 277 | Henry | 42 24 15 N | 088 38 00 W |
| Dahler Airport | Airport | 202 | Christian | 39 21 09 N | 089 18 03 W |
| Daily RLA Airport | Airport | 197 | Moultrie | 39 33 16 N | 088 28 22 W |
| Dale A Klassing Airport | Airport | 245 | Adams | 39 49 00 N | 091 02 00 W |
| Dale Curten Farm Airport | Airport | 184 | Randolph | 38 02 52 N | 089 59 49 W |
| Danville Correctional Center Heliport | Airport | 194 | Vermilion | 40 07 54 N | 087 32 10 W |
| Darien-Woodridge Fire Department Heliport | Airport | 235 | DuPage | 41 45 15 N | 088 00 26 W |
| Darrington Airport | Airport | 262 | Winnebago | 42 22 55 N | 089 09 40 W |
| David Gillespie Airport | Airport | 222 | La Salle | 41 21 55 N | 088 40 45 W |
| Davies Landing Strip | Airport | 188 | Knox | 40 47 20 N | 090 15 34 W |
| Davis Airport | Airport | 194 | La Salle | 41 25 00 N | 089 04 00 W |
| Davis RLA Heliport | Airport | 255 | McLean | 40 28 50 N | 088 57 38 W |
| Davison RLA Airport | Airport | 224 | Woodford | 40 54 53 N | 089 07 43 W |
| Davy Jones Airport | Airport | 149 | Jefferson | 38 13 22 N | 088 52 58 W |
| Dawson Farms Airport | Airport | 203 | Moultrie | 39 45 45 N | 088 40 17 W |
| Day Aero-Place | Airport | 209 | Champaign | 40 05 42 N | 088 07 43 W |
| Day Airport | Airport | 193 | Will | 41 39 00 N | 088 09 00 W |
| De Kalb Heliport | Airport | 184 | Sangamon | 39 52 01 N | 089 17 42 W |
| Deal Landing Strip | Airport | 189 | Christian | 39 30 50 N | 089 28 45 W |
| Decatur Airport | Airport | 206 | Macon | 39 50 04 N | 088 51 59 W |
| Decatur Memorial Hospital Heliport | Airport | 204 | Macon | 39 51 59 N | 088 57 42 W |
| DeKalb Taylor Municipal Airport | Airport | 278 | DeKalb | 41 55 47 N | 088 42 48 W |
| Delassus Landing Field | Airport | 116 | Randolph | 37 54 51 N | 089 56 21 W |
| Delhotal Airport | Airport | 231 | Lee | 41 44 10 N | 089 10 20 W |
| Denby Airport | Airport | 191 | Macoupin | 39 16 08 N | 089 54 14 W |
| Dennis Meier Heliport | Airport | 134 | Clinton | 38 36 40 N | 089 29 43 W |
| Department of Corrections Heliport | Airport | 152 | Jersey | 38 58 24 N | 090 27 40 W |
| Dewey Airport | Airport | 216 | DeKalb | 41 38 35 N | 088 49 04 W |
| Dewey E Greene Airport | Airport | 215 | Henry | 41 26 08 N | 090 10 13 W |
| Dick Burns Farm Airport | Airport | 200 | La Salle | 41 35 04 N | 088 41 22 W |
| Diedrich Airport | Airport | 265 | DeKalb | 41 52 23 N | 088 50 06 W |
| Dietchweiler Airport | Airport | 194 | Iroquois | 40 46 42 N | 087 47 30 W |
| Disosway Airport | Airport | 208 | Iroquois | 40 42 00 N | 087 36 00 W |