Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Douglas School (historical) | School | 141 | Wabash | 38 33 47 N | 087 44 27 W |
| Douglas School (historical) | School | 129 | Williamson | 37 43 32 N | 088 55 49 W |
| Douglas Station | Locale | 183 | Cook | 41 49 47 N | 087 36 24 W |
| Douglas University (historical) | School | 184 | Cook | 41 50 01 N | 087 36 42 W |
| Dover | Populated Place | 226 | Bureau | 41 26 12 N | 089 23 36 W |
| Dover Cemetery | Cemetery | 224 | Bureau | 41 25 58 N | 089 23 47 W |
| Dover Pond (subdivision) | Populated Place | 255 | Lake | 42 09 34 N | 088 04 20 W |
| Dow | Populated Place | 205 | Jersey | 39 00 48 N | 090 20 29 W |
| Dow Elementary School | School | 211 | Jersey | 39 00 48 N | 090 20 21 W |
| Dow Lateral | Stream | | Henry | 41 24 02 N | 089 55 13 W |
| Dow Southern Baptist Church | Church | 216 | Jersey | 39 00 49 N | 090 20 12 W |
| Dowacter Airport | Airport | 184 | McDonough | 40 18 50 N | 090 52 18 W |
| Dowden Park | Park | 214 | Lake | 42 16 35 N | 087 58 05 W |
| Dowell | Populated Place | 122 | Jackson | 37 56 23 N | 089 14 16 W |
| Dowell Lake | Reservoir | 192 | Henderson | 40 47 48 N | 090 54 55 W |
| Dowell Lake Dam | Dam | 192 | Henderson | 40 47 48 N | 090 54 55 W |
| Down School (historical) | School | 219 | Ford | 40 58 54 N | 088 08 58 W |
| Downen Heliport | Airport | 115 | Gallatin | 37 50 30 N | 088 10 21 W |
| Downers Grove | Populated Place | 226 | DuPage | 41 48 32 N | 088 00 40 W |
| Downers Grove Cemetery | Cemetery | 218 | DuPage | 41 47 33 N | 088 00 38 W |
| Downers Grove Community Church | Church | 234 | DuPage | 41 46 02 N | 087 59 40 W |
| Downers Grove Golf Club | Locale | 225 | DuPage | 41 48 05 N | 088 02 31 W |
| Downers Grove Post Office | Post Office | 219 | DuPage | 41 47 39 N | 088 00 29 W |
| Downers Grove Public Library | Building | 216 | DuPage | 41 47 38 N | 088 00 42 W |
| Downers Grove Township Office | Building | 229 | DuPage | 41 48 29 N | 088 00 51 W |
| Downers Grove Village Hall | Building | 219 | DuPage | 41 47 43 N | 088 00 15 W |
| Downers Market Shopping Center | Locale | 226 | DuPage | 41 48 34 N | 088 00 50 W |
| Downers Park Plaza Shopping Center | Locale | 236 | DuPage | 41 45 15 N | 088 00 36 W |
| Downers Plaza Shopping Center | Locale | 229 | DuPage | 41 48 40 N | 087 59 16 W |
| Downey Bridge (historical) | Bridge | 182 | Mercer | 41 13 26 N | 090 47 59 W |
| Downey Cemetery | Cemetery | 196 | Shelby | 39 17 58 N | 088 29 58 W |
| Downey Park | Park | 224 | De Witt | 40 08 57 N | 088 58 05 W |
| Downey School (historical) | School | 264 | Lee | 41 36 26 N | 089 25 10 W |
| Downey Veteran Administration Hospital | Hospital | 212 | Lake | 42 18 14 N | 087 51 22 W |
| Downing Cemetery | Cemetery | 179 | Logan | 40 03 05 N | 089 19 13 W |
| Downing Park | Park | 213 | McDonough | 40 27 41 N | 090 39 12 W |
| Downing Pond | Reservoir | 168 | Madison | 38 56 42 N | 090 05 36 W |
| Downing Pond Dam | Dam | 168 | Madison | 38 56 42 N | 090 05 36 W |
| Downing School (historical) | School | 213 | Warren | 40 42 07 N | 090 35 14 W |
| Downs | Populated Place | 245 | McLean | 40 23 49 N | 088 52 14 W |
| Downs Cemetery | Cemetery | 135 | Franklin | 37 55 11 N | 088 48 47 W |
| Downs School (historical) | School | 231 | Peoria | 40 41 52 N | 089 57 54 W |
| Downtown Quincy Historic District | Park | 183 | Adams | 39 55 55 N | 091 24 24 W |
| Doxee School (historical) | School | 205 | Rock Island | 41 25 51 N | 090 32 21 W |
| Doyle Lake | Reservoir | 192 | Will | 41 20 12 N | 088 04 18 W |
| Doyle Lake Dam | Dam | 192 | Will | 41 20 12 N | 088 04 18 W |
| Doyle School (historical) | School | 235 | Knox | 41 08 16 N | 090 18 24 W |
| Doyle School (historical) | School | 244 | Marshall | 41 05 24 N | 089 34 52 W |
| Doyles | Populated Place | 204 | Clark | 39 28 33 N | 087 52 19 W |
| Doyles Creek | Stream | | Clark | 39 24 46 N | 087 54 00 W |
| Doza Creek | Stream | | Randolph | 38 13 00 N | 089 53 49 W |
| Dozaville | Populated Place | 116 | Randolph | 37 54 25 N | 089 57 23 W |
| Dozier Airport | Airport | 124 | Wayne | 38 19 00 N | 088 16 20 W |
| Dr Joseph W Esser Airport | Airport | 297 | Kane | 42 07 50 N | 088 30 10 W |
| Draabs Lake | Lake | 135 | St. Clair | 38 25 17 N | 089 59 10 W |
| Dragon Lake County Forest Preserve | Park | 213 | DuPage | 41 44 14 N | 088 10 26 W |
| Drain Temple | Church | 181 | Cook | 41 51 30 N | 087 42 43 W |
| Drainage Ditch | Canal | 141 | Cass | 39 58 21 N | 090 23 33 W |
| Drainage Ditch Number 2 | Canal | 199 | Edgar | 39 42 26 N | 087 57 38 W |
| Drainage Ditch Number 7 | Canal | 208 | Edgar | 39 38 49 N | 087 48 15 W |
| Drake Cemetery | Cemetery | 274 | Boone | 42 20 32 N | 088 52 10 W |
| Drake Cemetery | Cemetery | 148 | Williamson | 37 36 19 N | 088 46 07 W |
| Drake Creek | Stream | | Shelby | 39 19 38 N | 088 32 44 W |
| Drake Elementary School | School | 182 | Cook | 41 50 38 N | 087 37 06 W |
| Drake Field Park | Park | 225 | Kane | 42 01 16 N | 088 15 51 W |
| Drake Hospital | Hospital | 181 | Logan | 40 08 18 N | 089 22 47 W |
| Drake School (historical) | School | 151 | Bond | 38 45 44 N | 089 27 39 W |
| Drake School (historical) | School | 223 | Iroquois | 40 35 50 N | 088 05 59 W |
| Drake School (historical) | School | 222 | Marshall | 41 02 44 N | 089 30 16 W |
| Drake Theatre | Building | 210 | Lake | 42 14 00 N | 087 49 52 W |
| Drake-Million Cemetery | Cemetery | 193 | Greene | 39 23 49 N | 090 12 17 W |
| Drama and Rigger Shops | Building | 181 | Cook | 41 47 26 N | 087 36 25 W |
| Draper Cemetery | Cemetery | 141 | Crawford | 39 08 53 N | 087 40 17 W |
| Drapers Bluff | Cliff | 189 | Union | 37 30 53 N | 089 02 37 W |
| Drapers Bluff Point of Interest | Locale | 157 | Union | 37 30 49 N | 089 02 42 W |
| Drapper Branch | Stream | | Greene | 39 11 37 N | 090 27 18 W |
| Draves Cemetery | Cemetery | 172 | Randolph | 37 53 42 N | 089 43 44 W |
| Dreily School (historical) | School | 269 | DeKalb | 41 57 51 N | 088 55 36 W |
| Dreischmeir School (historical) | School | 204 | La Salle | 41 37 04 N | 088 39 03 W |
| Drendel School (historical) | School | 202 | Ford | 40 53 36 N | 088 11 14 W |
| Drescher Family Cemetery | Cemetery | 214 | Adams | 39 51 08 N | 091 04 22 W |
| Dresden Cemetery | Cemetery | 168 | Grundy | 41 24 13 N | 088 16 36 W |
| Dresden Cooling Lake | Reservoir | 154 | Grundy | 41 21 54 N | 088 15 30 W |
| Dresden Cooling Lake Dam | Dam | 154 | Grundy | 41 21 54 N | 088 15 30 W |
| Dresden Heights School (historical) | School | 187 | Grundy | 41 25 04 N | 088 17 20 W |
| Dresden Island | Island | 148 | Grundy | 41 23 57 N | 088 17 07 W |
| Dresden Island Lock and Dam | Dam | 147 | Grundy | 41 24 03 N | 088 16 53 W |
| Dresden Island Pool | Reservoir | 147 | Grundy | 41 24 03 N | 088 16 53 W |
| Dresden Run | Stream | | Grundy | 41 24 09 N | 088 16 51 W |
| Dresden Station Nuclear Powerplant | Locale | 41 | Grundy | 41 23 23 N | 088 16 09 W |
| Dresser Mill School (historical) | School | 174 | Macoupin | 39 21 44 N | 089 58 52 W |
| Dresser Park | Park | 186 | Cook | 41 36 38 N | 087 41 12 W |
| Dresser School (historical) | School | 272 | DeKalb | 41 57 02 N | 088 46 21 W |
| Dressler Cemetery | Cemetery | 137 | St. Clair | 38 23 56 N | 089 50 15 W |
| Dressor | Populated Place | 183 | Fayette | 39 10 23 N | 089 03 04 W |
| Drew Pond | Lake | 110 | White | 38 05 13 N | 088 02 04 W |
| Drexel Elementary School | School | 183 | Cook | 41 49 37 N | 087 45 32 W |
| Drexel Estate (subdivision) | Populated Place | 183 | Cook | 41 46 32 N | 087 40 17 W |
| Drexel Park | Park | 183 | Cook | 41 49 37 N | 087 45 37 W |
| Drexel Square | Park | 181 | Cook | 41 48 06 N | 087 36 18 W |
| Drexler Park | Park | 235 | Ogle | 41 54 05 N | 089 03 39 W |
| Driessen Park | Park | 231 | Kane | 41 55 19 N | 088 19 59 W |
| Drift Chute | Stream | | Pike | 39 32 45 N | 091 06 12 W |
| Drift Island | Island | 139 | Pike | 39 33 12 N | 091 07 56 W |
| Driscoll School | School | 218 | DuPage | 41 56 13 N | 088 01 16 W |
| Driskell Tutoring Center | School | 183 | Cook | 41 49 11 N | 087 37 02 W |
| Driver School (historical) | School | 246 | McHenry | 42 12 42 N | 088 39 25 W |
| Drivers | Populated Place | 135 | Jefferson | 38 19 50 N | 088 59 35 W |
| Droit School (historical) | School | 165 | St. Clair | 38 31 43 N | 090 10 04 W |
| Dron Cemetery | Cemetery | 192 | Schuyler | 40 13 13 N | 090 53 19 W |