Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Chanute Air Force Base Hospital (historical) | Hospital | 221 | Champaign | 40 17 13 N | 088 08 28 W |
| Chapel Cemetery | Cemetery | 224 | McDonough | 40 35 45 N | 090 54 17 W |
| Chapel Grove Cemetery | Cemetery | 229 | Rock Island | 41 23 35 N | 090 37 27 W |
| Chapel Hall (historical) | Building | 227 | Winnebago | 42 15 44 N | 089 05 31 W |
| Chapel Hill (subdivision) | Populated Place | 258 | Lake | 42 10 41 N | 088 06 00 W |
| Chapel Hill Cemetery | Cemetery | 232 | Lee | 41 51 38 N | 089 29 34 W |
| Chapel Hill Cemetery | Cemetery | 235 | Ogle | 41 55 52 N | 089 14 57 W |
| Chapel Hill Cemetery | Cemetery | 247 | Stephenson | 42 15 49 N | 089 38 01 W |
| Chapel Hill Cemetery | Cemetery | 166 | Washington | 38 13 46 N | 089 13 52 W |
| Chapel Hill Country Club | Locale | 233 | McHenry | 42 21 35 N | 088 14 29 W |
| Chapel Hill Gardens West Cemetery | Cemetery | 213 | DuPage | 41 51 27 N | 087 57 53 W |
| Chapel Hill School (historical) | School | 171 | Bond | 38 55 23 N | 089 26 18 W |
| Chapel Hill School (historical) | School | 166 | Washington | 38 13 45 N | 089 13 49 W |
| Chapel Hills Gardens South | Cemetery | 189 | Cook | 41 41 13 N | 087 45 16 W |
| Chapel of Our Lord | Church | 192 | Cook | 41 53 59 N | 087 48 32 W |
| Chapel of the Chimes | Church | 240 | Winnebago | 42 16 44 N | 089 10 24 W |
| Chapel One | Church | 137 | St. Clair | 38 32 33 N | 089 52 14 W |
| Chapel School (historical) | School | 122 | Johnson | 37 20 39 N | 089 02 28 W |
| Chapel School (historical) | School | 198 | Lee | 41 36 49 N | 089 36 07 W |
| Chapel Two | Church | 131 | St. Clair | 38 32 54 N | 089 50 40 W |
| Chapel Two Picnic Area | Locale | 131 | St. Clair | 38 32 53 N | 089 50 36 W |
| Chapelwood Evangelical Free Church | Church | 238 | Winnebago | 42 18 35 N | 089 06 39 W |
| Chapin | Populated Place | 204 | Macon | 39 52 53 N | 088 46 26 W |
| Chapin | Populated Place | 189 | Morgan | 39 45 57 N | 090 23 56 W |
| Chapin and Gore Building | Building | 183 | Cook | 41 52 45 N | 087 37 32 W |
| Chapin Cemetery | Cemetery | 186 | Morgan | 39 45 51 N | 090 21 19 W |
| Chapin Election Precinct | Civil | 190 | Morgan | 39 46 42 N | 090 25 32 W |
| Chapin Park | Park | 159 | Grundy | 41 21 44 N | 088 25 31 W |
| Chaple Cemetery | Cemetery | 166 | Jasper | 39 02 39 N | 088 09 08 W |
| Chaplin School (historical) | School | 224 | Adams | 39 54 07 N | 091 04 41 W |
| Chapman | Populated Place | 195 | Montgomery | 39 06 20 N | 089 19 01 W |
| Chapman Cemetery | Cemetery | 180 | Jersey | 39 05 28 N | 090 12 32 W |
| Chapman Cemetery | Cemetery | 231 | Johnson | 37 31 35 N | 088 55 17 W |
| Chapman Cemetery | Cemetery | 192 | Kendall | 41 29 04 N | 088 16 42 W |
| Chapman Cemetery | Cemetery | 199 | Macoupin | 39 03 37 N | 089 45 08 W |
| Chapman Cemetery | Cemetery | 153 | Perry | 38 12 47 N | 089 23 21 W |
| Chapman Cemetery | Cemetery | 144 | Wabash | 38 26 10 N | 087 48 15 W |
| Chapman Grove Church | Church | 161 | White | 37 57 19 N | 088 13 04 W |
| Chapman Middle School | School | 226 | Fulton | 40 41 51 N | 090 00 04 W |
| Chapman Point School (historical) | School | 210 | Macoupin | 39 30 29 N | 089 55 33 W |
| Chapman School (historical) | School | 213 | Iroquois | 40 30 07 N | 087 43 43 W |
| Chapman School (historical) | School | 198 | Kendall | 41 29 02 N | 088 16 23 W |
| Chapman School (historical) | School | 226 | Warren | 40 58 42 N | 090 34 45 W |
| Chapman School (historical) | School | 159 | Wayne | 38 32 52 N | 088 40 20 W |
| Chapman School (historical) | School | 216 | Will | 41 41 05 N | 088 04 01 W |
| Chappell Elementary School | School | 182 | Cook | 41 58 32 N | 087 41 02 W |
| Charcoal Bar | Bar | 158 | Henderson | 40 46 27 N | 091 04 34 W |
| Charger Park | Park | 231 | DuPage | 41 56 01 N | 088 10 10 W |
| Charity Baptist Church | Church | 191 | Macoupin | 39 19 01 N | 089 57 21 W |
| Charity Church | Church | 182 | Greene | 39 21 10 N | 090 12 48 W |
| Charity Church Cemetery | Cemetery | 190 | Macoupin | 39 18 59 N | 089 57 22 W |
| Charlemagne Park | Park | 248 | Cook | 42 05 28 N | 088 06 46 W |
| Charles A Goodyear House | Building | 181 | Cook | 41 48 24 N | 087 35 58 W |
| Charles A Lindbergh Middle School | School | 240 | Peoria | 40 45 51 N | 089 36 17 W |
| Charles B Phillips Library | Building | 210 | Kane | 41 45 19 N | 088 20 51 W |
| Charles Bonner House | Building | 181 | Cook | 41 47 24 N | 087 35 21 W |
| Charles Cannady School | School | 127 | St. Clair | 38 37 53 N | 090 07 51 W |
| Charles Earle Playground | Park | 182 | Cook | 41 46 56 N | 087 40 03 W |
| Charles H Botsford House | Building | 180 | Cook | 41 47 26 N | 087 35 31 W |
| Charles H Coleman Hall | Building | 210 | Coles | 39 28 42 N | 088 10 35 W |
| Charles H Starkweather House | Building | 181 | Cook | 41 48 21 N | 087 35 47 W |
| Charles Harrison Mason Bible College | School | 182 | Cook | 41 47 06 N | 087 39 56 W |
| Charles J Caruso Junior High School | School | 204 | Lake | 42 10 07 N | 087 52 21 W |
| Charles J Sahs Elementary School | School | 181 | Cook | 41 48 05 N | 087 45 25 W |
| Charles L O'Brien Park | Park | 183 | Cook | 42 00 47 N | 087 43 36 W |
| Charles Mound | Summit | 374 | Jo Daviess | 42 30 15 N | 090 14 24 W |
| Charles P Lantz Health Physical Education and Recreation Building | Building | 213 | Coles | 39 28 49 N | 088 10 46 W |
| Charles Quentin Elementary School | School | 241 | Lake | 42 09 38 N | 088 02 56 W |
| Charles Schlickers Cemetery | Cemetery | 180 | Morgan | 39 50 09 N | 090 27 58 W |
| Charles School (historical) | School | 280 | McHenry | 42 21 50 N | 088 23 38 W |
| Charles School (historical) | School | 134 | White | 38 12 06 N | 088 01 09 W |
| Charles Street Presbyterian Church | Church | 259 | Winnebago | 42 15 14 N | 089 01 57 W |
| Charleston | Populated Place | 204 | Coles | 39 29 46 N | 088 10 34 W |
| Charleston Country Club | Locale | 200 | Coles | 39 29 46 N | 088 13 53 W |
| Charleston High School | School | 212 | Coles | 39 29 08 N | 088 09 52 W |
| Charleston Junior High School | School | 208 | Coles | 39 29 18 N | 088 09 56 W |
| Charleston Post Office | Post Office | 204 | Coles | 39 29 47 N | 088 10 33 W |
| Charleston Public Library | Building | 203 | Coles | 39 29 36 N | 088 10 33 W |
| Charlestowne Mall Shopping Center | Locale | 235 | Kane | 41 55 19 N | 088 15 55 W |
| Charley Brown Park | Park | 149 | Clay | 38 39 53 N | 088 32 17 W |
| Charley Brown Park Lake | Reservoir | 143 | Clay | 38 39 48 N | 088 32 06 W |
| Charley Brown Park Lake Dam | Dam | 143 | Clay | 38 39 48 N | 088 32 06 W |
| Charlotte | Populated Place | 202 | Livingston | 40 49 11 N | 088 17 20 W |
| Charlotte United Methodist Church (historical) | Church | 200 | Livingston | 40 50 03 N | 088 17 59 W |
| Charlottesville Cemetery | Cemetery | 139 | Lawrence | 38 50 11 N | 087 44 58 W |
| Charlottsville (historical) | Populated Place | 134 | Lawrence | 38 50 05 N | 087 45 18 W |
| Charter Barclay Hospital | Hospital | 180 | Cook | 41 58 04 N | 087 39 03 W |
| Charter Grove | Populated Place | 268 | DeKalb | 42 03 59 N | 088 37 53 W |
| Charter Grove | Woods | 274 | DeKalb | 42 03 00 N | 088 38 00 W |
| Charter Grove Cemetery | Cemetery | 274 | DeKalb | 42 03 38 N | 088 38 29 W |
| Charter Grove School (historical) | School | 274 | DeKalb | 42 02 02 N | 088 37 35 W |
| Charter Oak Cemetery | Cemetery | 247 | DeKalb | 42 08 30 N | 088 51 21 W |
| Charter Oak Church | Church | 171 | Peoria | 40 45 18 N | 089 41 11 W |
| Charter Oak North Lake | Reservoir | 183 | Peoria | 40 45 54 N | 089 40 36 W |
| Charter Oak North Lake Dam | Dam | 183 | Peoria | 40 45 54 N | 089 40 36 W |
| Charter Oak Primary School | School | 201 | Peoria | 40 45 23 N | 089 40 27 W |
| Charter Oak School (historical) | School | 259 | DeKalb | 42 08 18 N | 088 50 31 W |
| Charter Oak School (historical) | School | 197 | Peoria | 40 45 15 N | 089 39 39 W |
| Charter Oak School (historical) | School | 165 | Randolph | 38 05 20 N | 089 47 37 W |
| Charter Oak Village Lake | Reservoir | 195 | Peoria | 40 45 36 N | 089 40 18 W |
| Charter Oak Village Lake Dam | Dam | 195 | Peoria | 40 45 36 N | 089 40 18 W |
| Chartrand School | School | 125 | St. Clair | 38 35 30 N | 090 10 08 W |
| Chartwell Park | Park | 223 | DuPage | 41 52 56 N | 088 09 07 W |
| Chase (historical) | Locale | 259 | DeKalb | 41 52 46 N | 088 39 50 W |
| Chase Commons Plaza Shopping Center | Locale | 217 | Cook | 41 34 45 N | 087 49 50 W |
| Chase Elementary School | School | 182 | Cook | 41 55 05 N | 087 41 40 W |
| Chase House | School | 180 | Cook | 41 52 42 N | 087 39 59 W |
| Chase Park | Park | 185 | Cook | 42 00 48 N | 087 44 08 W |
| Chase Park | Park | 184 | Cook | 41 58 03 N | 087 40 04 W |
| Chase Plaza Shopping Center | Locale | 217 | Lake | 42 09 17 N | 087 59 00 W |