Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Dwight Correctional Center | Locale | 195 | Livingston | 41 05 51 N | 088 28 34 W |
| Dwight Country Club | Locale | 198 | Livingston | 41 05 05 N | 088 28 17 W |
| Dwight D Eisenhower Elementary School | School | 205 | Cook | 42 05 45 N | 087 56 42 W |
| Dwight High School | School | 194 | Livingston | 41 05 08 N | 088 25 35 W |
| Dwight Lions Lake | Reservoir | 196 | Livingston | 41 04 56 N | 088 26 42 W |
| Dwight Old Town Cemetery | Cemetery | 197 | Livingston | 41 05 12 N | 088 26 24 W |
| Dwight Post Office | Post Office | 193 | Livingston | 41 05 40 N | 088 25 43 W |
| Dwight Sewage Works | Locale | 190 | Livingston | 41 06 19 N | 088 24 47 W |
| Dwight United Methodist Church | Church | 194 | Livingston | 41 05 11 N | 088 25 49 W |
| Dwight Village Hall | Building | 193 | Livingston | 41 05 34 N | 088 25 40 W |
| Dwyer Elementary School | School | 210 | Cook | 42 04 33 N | 087 59 52 W |
| Dwyer Park | Park | 198 | Cook | 42 06 18 N | 087 44 10 W |
| Dwyer Quarry | Mine | 234 | Stephenson | 42 16 33 N | 089 34 51 W |
| Dwyer School (historical) | School | 170 | Will | 41 16 33 N | 088 10 54 W |
| Dyche Stadium | Park | 184 | Cook | 42 03 55 N | 087 41 33 W |
| Dyer Pond | Lake | 116 | St. Clair | 38 25 54 N | 089 43 41 W |
| Dyer School (historical) | School | 210 | Moultrie | 39 44 22 N | 088 36 23 W |
| Dyers Mound | Summit | 221 | McDonough | 40 30 12 N | 090 28 22 W |
| Dygerts Mound | Summit | 300 | Jo Daviess | 42 23 35 N | 090 24 26 W |
| Dykersburg | Populated Place | 166 | Williamson | 37 41 32 N | 088 44 23 W |
| Dykersburg School | School | 157 | Williamson | 37 41 44 N | 088 44 56 W |
| Dynamite Hollow | Valley | | Alexander | 37 10 39 N | 089 26 23 W |
| Dysart School (historical) | School | 220 | Putnam | 41 14 09 N | 089 13 14 W |
| Dyslin Valley | Valley | | Carroll | 42 10 48 N | 089 52 54 W |
| Dyslin Valley School | School | 226 | Carroll | 42 10 28 N | 089 52 21 W |
| Dysons Lake (historical) | Lake | 180 | Carroll | 42 01 03 N | 090 04 35 W |
| E A Gastman Public School (historical) | School | 205 | Macon | 39 50 42 N | 088 57 28 W |
| E C Smith Park | Park | 216 | Lee | 41 50 14 N | 089 29 05 W |
| E D Kimball House | Building | 180 | Cook | 41 48 25 N | 087 35 38 W |
| E E Voigt Science Hall | Building | 156 | St. Clair | 38 36 27 N | 089 48 59 W |
| E J Edwards House | Building | 181 | Cook | 41 48 24 N | 087 35 42 W |
| E L Ryerson Conservation Area | Park | 197 | Lake | 42 10 55 N | 087 54 44 W |
| E M Dirksen School | School | 192 | Cook | 41 58 23 N | 087 50 30 W |
| E Z Methods School | School | 186 | Cook | 41 58 25 N | 087 44 55 W |
| Eads Bridge | Bridge | 119 | St. Clair | 38 37 44 N | 090 10 44 W |
| Eads Cemetery | Cemetery | 201 | Schuyler | 40 06 34 N | 090 30 25 W |
| Eads Lake | Reservoir | 207 | Edgar | 39 36 36 N | 087 40 00 W |
| Eads Lake Dam | Dam | 207 | Edgar | 39 36 36 N | 087 40 00 W |
| Eagan Cemetery | Cemetery | 167 | Marion | 38 39 15 N | 088 55 49 W |
| Eagerville | Populated Place | 196 | Macoupin | 39 06 42 N | 089 47 02 W |
| Eagle | Populated Place | 117 | Saline | 37 39 04 N | 088 23 34 W |
| Eagle Branch | Stream | | Lawrence | 38 48 01 N | 087 46 22 W |
| Eagle Cliff Cemetery | Cemetery | 152 | Monroe | 38 21 47 N | 090 15 44 W |
| Eagle Cliff Overlook | Locale | 157 | La Salle | 41 19 12 N | 088 59 10 W |
| Eagle Community Church | Church | 191 | McDonough | 40 18 48 N | 090 45 03 W |
| Eagle Country Market Center Shopping Center | Locale | 274 | McHenry | 42 10 31 N | 088 20 08 W |
| Eagle Creek | Stream | | Carroll | 41 58 47 N | 089 44 26 W |
| Eagle Creek | Stream | | Gallatin | 37 39 10 N | 088 15 19 W |
| Eagle Creek | Stream | | La Salle | 41 08 07 N | 088 51 11 W |
| Eagle Creek | Stream | | Lake | 42 22 52 N | 088 07 27 W |
| Eagle Creek | Stream | | Shelby | 39 28 36 N | 088 42 46 W |
| Eagle Creek Shopping Center | Locale | 241 | Lake | 42 22 48 N | 088 05 30 W |
| Eagle Creek State Park | Park | 198 | Shelby | 39 29 05 N | 088 42 35 W |
| Eagle Ditch | Canal | 162 | Mercer | 41 16 38 N | 091 03 50 W |
| Eagle Fountain | Locale | 182 | Cook | 41 52 34 N | 087 37 26 W |
| Eagle Free Methodist Church (historical) | Church | 191 | McDonough | 40 18 48 N | 090 45 03 W |
| Eagle Island | Island | 133 | Crawford | 39 01 40 N | 087 34 23 W |
| Eagle Island | Island | 183 | Kankakee | 41 08 45 N | 087 43 21 W |
| Eagle Island | Island | 129 | Morgan | 39 52 09 N | 090 35 00 W |
| Eagle Island | Island | 139 | Pike | 39 32 49 N | 091 08 15 W |
| Eagle Lake | Lake | 132 | Cass | 40 06 22 N | 090 20 22 W |
| Eagle Lake | Populated Place | 221 | Will | 41 22 01 N | 087 33 07 W |
| Eagle Lake (historical) | Lake | 218 | Will | 41 22 10 N | 087 32 41 W |
| Eagle Lake Basin | Basin | 201 | Moultrie | 39 38 45 N | 088 36 35 W |
| Eagle Lake Cemetery | Cemetery | 220 | Will | 41 24 22 N | 087 33 18 W |
| Eagle Mine | Mine | 209 | Fulton | 40 32 20 N | 090 04 19 W |
| Eagle Mountains | Range | 233 | Saline | 37 40 02 N | 088 25 52 W |
| Eagle Nest Cove | Bay | 183 | Shelby | 39 28 21 N | 088 43 23 W |
| Eagle Number 1 Fresh Water Lake | Reservoir | 113 | Gallatin | 37 40 30 N | 088 14 00 W |
| Eagle Number 1 Fresh Water Lake Dam | Dam | 113 | Gallatin | 37 40 30 N | 088 14 00 W |
| Eagle Number 2 Lake | Reservoir | 107 | Gallatin | 37 44 06 N | 088 13 18 W |
| Eagle Number 2 Lake Dam | Dam | 107 | Gallatin | 37 44 06 N | 088 13 18 W |
| Eagle Park | Park | 243 | Cook | 42 00 46 N | 088 05 49 W |
| Eagle Park | Park | 226 | Cook | 42 08 13 N | 088 02 17 W |
| Eagle Park | Park | 212 | DuPage | 41 44 32 N | 088 06 46 W |
| Eagle Park | Populated Place | 125 | Madison | 38 39 50 N | 090 08 33 W |
| Eagle Point | Cape | 223 | Lake | 42 23 12 N | 088 11 39 W |
| Eagle Point | Populated Place | 243 | Ogle | 41 59 37 N | 089 41 05 W |
| Eagle Point Bay | Populated Place | 186 | Johnson | 37 35 22 N | 088 55 47 W |
| Eagle Point Cemetery | Cemetery | 245 | Ogle | 41 59 45 N | 089 41 07 W |
| Eagle Pond (historical) | Lake | 137 | Pike | 39 39 40 N | 091 11 46 W |
| Eagle Prairie | Area | 132 | Cass | 40 06 45 N | 090 20 08 W |
| Eagle Ridge (subdivision) | Populated Place | 260 | McLean | 40 30 52 N | 088 55 39 W |
| Eagle Ripple Ford | Crossing | 102 | Gallatin | 37 39 10 N | 088 15 12 W |
| Eagle Run | Stream | | Scott | 39 46 44 N | 090 33 19 W |
| Eagle School | School | 201 | La Salle | 41 09 22 N | 088 55 25 W |
| Eagle School (historical) | School | 200 | Hancock | 40 30 44 N | 090 56 43 W |
| Eagle School (historical) | School | 215 | Hancock | 40 26 47 N | 091 14 11 W |
| Eagle School (historical) | School | 191 | McDonough | 40 18 49 N | 090 45 03 W |
| Eagle School (historical) | School | 175 | Morgan | 39 49 08 N | 090 28 38 W |
| Eagle School (historical) | School | 138 | Wayne | 38 24 06 N | 088 41 07 W |
| Eagle School (historical) | School | 271 | Winnebago | 42 20 41 N | 088 57 37 W |
| Eagle Slough | Gut | 132 | Cass | 40 06 43 N | 090 20 26 W |
| Eagle Slough | Stream | | Pike | 39 43 47 N | 091 17 04 W |
| Eagle Slough Drainage Ditch | Canal | 113 | Wayne | 38 17 35 N | 088 24 40 W |
| Eagle Slough School (historical) | School | 140 | Pike | 39 44 43 N | 091 17 39 W |
| Eaglebrook Country Club | Locale | 215 | Kane | 41 52 08 N | 088 19 55 W |
| Eagles Christian Fellowship Church | Church | 223 | Winnebago | 42 13 54 N | 089 05 10 W |
| Eagles Nest Island | Island | 133 | Jersey | 38 55 39 N | 090 18 07 W |
| Eagleston Cemetery | Cemetery | 244 | Stark | 41 05 52 N | 089 41 12 W |
| Eaglin Church | Church | 162 | Marion | 38 43 18 N | 089 03 33 W |
| Eakin Grove Church | Church | 126 | Franklin | 37 58 55 N | 088 57 21 W |
| Eakin School (historical) | School | 274 | Kane | 42 06 25 N | 088 25 07 W |
| Eakle Cemetery | Cemetery | 165 | Fayette | 38 58 13 N | 089 13 47 W |
| Earel Cemetery | Cemetery | 210 | Adams | 39 58 32 N | 091 03 21 W |
| Earl Barnickel Airport | Airport | 286 | Lee | 41 40 30 N | 089 07 00 W |
| Earl Bedford School of Music | School | 186 | Cook | 41 52 48 N | 087 45 10 W |
| Earl Cemetery | Cemetery | 213 | La Salle | 41 34 26 N | 088 53 54 W |
| Earl F Elliott Park and Golf Course | Locale | 238 | Winnebago | 42 15 55 N | 088 57 07 W |
| Earl H Hanson Elementary School | School | 181 | Rock Island | 41 28 17 N | 090 35 13 W |