Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Baker Cemetery | Cemetery | 179 | Pope | 37 20 13 N | 088 33 16 W |
| Baker Cemetery | Cemetery | 201 | Rock Island | 41 39 46 N | 090 18 19 W |
| Baker Cemetery | Cemetery | 165 | Scott | 39 39 06 N | 090 30 44 W |
| Baker Cemetery | Cemetery | 204 | Whiteside | 41 53 18 N | 090 04 58 W |
| Baker Cemetery | Cemetery | 180 | Williamson | 37 38 35 N | 089 06 51 W |
| Baker County Forest Preserve | Park | 174 | Kendall | 41 30 56 N | 088 18 45 W |
| Baker Creek | Stream | | Kankakee | 41 06 00 N | 087 49 59 W |
| Baker Creek Ditch | Canal | 194 | Bureau | 41 34 38 N | 089 41 51 W |
| Baker Ditch | Canal | 184 | Henry | 41 28 02 N | 089 52 01 W |
| Baker Family Cemetery | Cemetery | 196 | Adams | 39 47 43 N | 091 06 23 W |
| Baker Family Cemetery | Cemetery | 138 | Saline | 37 46 34 N | 088 36 03 W |
| Baker Family Cemetery | Cemetery | 200 | Williamson | 37 36 45 N | 089 06 43 W |
| Baker Hall | Building | 183 | Peoria | 40 41 59 N | 089 36 57 W |
| Baker Hall | Building | 151 | St. Clair | 38 36 31 N | 089 48 56 W |
| Baker Hollow | Valley | | Fulton | 40 30 14 N | 089 55 37 W |
| Baker Lake | Lake | 258 | Cook | 42 08 33 N | 088 07 24 W |
| Baker Memorial Christian Methodist Episcopal Church | Church | 202 | Cook | 41 30 10 N | 087 37 13 W |
| Baker Memorial United Methodist Church | Church | 225 | Kane | 41 54 53 N | 088 18 36 W |
| Baker Mine | Mine | 148 | Hardin | 37 28 46 N | 088 24 11 W |
| Baker Park | Park | 181 | Cook | 42 01 44 N | 087 40 24 W |
| Baker Park | Park | 249 | Henry | 41 15 09 N | 089 56 11 W |
| Baker Park | Park | 225 | Kane | 41 54 53 N | 088 18 34 W |
| Baker Park | Park | 189 | La Salle | 41 20 38 N | 089 06 31 W |
| Baker Prairie Number 1 Cemetery | Cemetery | 186 | Menard | 40 00 23 N | 089 48 14 W |
| Baker Prairie Number 2 Cemetery | Cemetery | 180 | Menard | 40 00 28 N | 089 49 06 W |
| Baker Run | Stream | | Livingston | 40 57 48 N | 088 44 04 W |
| Baker Run School (historical) | School | 190 | Livingston | 40 57 54 N | 088 43 09 W |
| Baker School (historical) | School | 262 | DeKalb | 41 50 55 N | 088 48 42 W |
| Baker School (historical) | School | 190 | Henry | 41 25 26 N | 089 54 35 W |
| Baker School (historical) | School | 190 | Kankakee | 41 05 54 N | 087 48 43 W |
| Baker School (historical) | School | 202 | La Salle | 41 35 04 N | 088 42 01 W |
| Baker School (historical) | School | 152 | Mason | 40 11 58 N | 089 56 19 W |
| Baker School (historical) | School | 182 | Morgan | 39 48 12 N | 090 25 12 W |
| Baker School (historical) | School | 195 | Moultrie | 39 31 18 N | 088 37 16 W |
| Baker Woods | Woods | 201 | Macon | 39 50 00 N | 088 53 09 W |
| Baker Woods Park | Park | 201 | Macon | 39 50 01 N | 088 53 09 W |
| Baker's Lake Nature Preserve | Park | 258 | Cook | 42 08 30 N | 088 07 13 W |
| Bakers Acres | Populated Place | 241 | Kane | 41 56 51 N | 088 20 48 W |
| Bakers Corner School (historical) | School | 207 | Livingston | 40 46 23 N | 088 33 51 W |
| Bakers Crossroads | Populated Place | 181 | Williamson | 37 37 41 N | 089 06 53 W |
| Bakers Strip | Airport | 218 | De Witt | 40 07 02 N | 088 45 32 W |
| Bakerville | Populated Place | 132 | Jefferson | 38 15 30 N | 088 53 51 W |
| Bakerville | Populated Place | 183 | Logan | 40 03 47 N | 089 11 48 W |
| Balch School (historical) | School | 197 | Coles | 39 23 12 N | 088 11 12 W |
| Balcom | Populated Place | 152 | Union | 37 24 47 N | 089 12 22 W |
| Balcom Election Precinct | Civil | 143 | Union | 37 24 26 N | 089 11 45 W |
| Bald Bluff | Cliff | 206 | Henderson | 41 01 56 N | 090 52 57 W |
| Bald Bluff | Populated Place | 193 | Henderson | 41 01 07 N | 090 51 14 W |
| Bald Bluff Cemetery | Cemetery | 208 | Pike | 39 30 48 N | 090 57 43 W |
| Bald Bluff School (historical) | School | 195 | Henderson | 41 01 23 N | 090 51 14 W |
| Bald Hill Cemetery | Cemetery | 156 | Jefferson | 38 12 07 N | 089 07 22 W |
| Bald Hill Creek | Stream | | Jefferson | 38 09 26 N | 089 08 20 W |
| Bald Hill School (historical) | School | 151 | Jefferson | 38 11 25 N | 089 07 51 W |
| Bald Hill Townhall | Building | 160 | Jefferson | 38 11 26 N | 089 05 44 W |
| Bald Knob | Summit | 235 | McHenry | 42 23 07 N | 088 12 26 W |
| Bald Knob | Summit | 232 | Montgomery | 39 10 31 N | 089 15 54 W |
| Bald Knob | Summit | 237 | Saline | 37 37 48 N | 088 26 41 W |
| Bald Knob | Summit | 314 | Union | 37 33 07 N | 089 20 47 W |
| Bald Knob Picnic Area | Locale | 129 | Jackson | 37 46 28 N | 089 22 58 W |
| Bald Knob Wilderness | Reserve | 165 | Union | 37 33 02 N | 089 22 39 W |
| Bald Mound | Populated Place | 224 | Kane | 41 50 46 N | 088 24 23 W |
| Baldridge School (historical) | School | 165 | Jefferson | 38 25 46 N | 089 07 36 W |
| Baldwin | Populated Place | 140 | Randolph | 38 10 59 N | 089 50 33 W |
| Baldwin (subdivision) | Populated Place | 235 | Cook | 42 08 17 N | 088 03 31 W |
| Baldwin Beach | Populated Place | 146 | Mason | 40 20 45 N | 090 01 55 W |
| Baldwin Branch | Stream | | Adams | 40 06 54 N | 091 13 31 W |
| Baldwin Cemetery | Cemetery | 137 | Hardin | 37 32 39 N | 088 24 46 W |
| Baldwin Cemetery | Cemetery | 137 | Randolph | 38 11 45 N | 089 50 46 W |
| Baldwin Election Precinct | Civil | 137 | Randolph | 38 10 48 N | 089 49 56 W |
| Baldwin Hall | Building | 190 | Madison | 38 57 04 N | 090 11 34 W |
| Baldwin Heights | Populated Place | 169 | Jefferson | 38 26 59 N | 089 08 41 W |
| Baldwin Lake State Fish and Wildlife Area | Park | 131 | Randolph | 38 13 03 N | 089 52 09 W |
| Baldwin Mine | Mine | 129 | Pope | 37 32 04 N | 088 25 02 W |
| Baldwin Plant Cooling Lake | Reservoir | 129 | Randolph | 38 12 36 N | 089 52 36 W |
| Baldwin Plant Cooling Lake Dam | Dam | 129 | Randolph | 38 12 36 N | 089 52 36 W |
| Baldwin Power Plant Cooling Lake | Reservoir | 129 | Randolph | 38 12 36 N | 089 52 36 W |
| Baldwin Power Plant Cooling Lake Dike | Dam | 129 | Randolph | 38 12 36 N | 089 52 36 W |
| Baldwin School (historical) | School | 210 | Champaign | 39 56 15 N | 088 20 59 W |
| Baldwinsville Post Office (historical) | Post Office | 214 | Edgar | 39 40 19 N | 087 37 51 W |
| Baldwinville School (historical) | School | 211 | Edgar | 39 40 21 N | 087 38 20 W |
| Bales Cemetery | Cemetery | 202 | Coles | 39 22 32 N | 088 19 13 W |
| Ball Cemetery | Cemetery | 153 | Crawford | 39 06 50 N | 087 42 06 W |
| Ball Elementary School | School | 183 | Sangamon | 39 40 14 N | 089 37 44 W |
| Ball Hill School (historical) | School | 181 | Fayette | 39 03 01 N | 088 52 45 W |
| Ball School (historical) | School | 206 | Macoupin | 39 27 28 N | 089 43 12 W |
| Ballard | Locale | 227 | McLean | 40 41 27 N | 088 45 15 W |
| Ballard Cemetery | Cemetery | 174 | Madison | 38 47 10 N | 089 57 56 W |
| Ballard Park | Park | 198 | Cook | 42 02 34 N | 087 50 13 W |
| Ballard School | School | 200 | Cook | 42 02 40 N | 087 50 05 W |
| Ballard School (historical) | School | 257 | McLean | 40 30 05 N | 088 51 49 W |
| Ballard School (historical) | School | 224 | McLean | 40 41 01 N | 088 45 37 W |
| Ballek Landing Area | Airport | 231 | DeKalb | 41 46 20 N | 088 40 25 W |
| Ballou | Populated Place | 184 | Will | 41 16 39 N | 088 06 07 W |
| Ballou Park | Park | 231 | Lee | 41 50 22 N | 089 28 18 W |
| Ballowe Church | Church | 140 | Johnson | 37 22 49 N | 088 54 33 W |
| Ballowe School (historical) | School | 140 | Johnson | 37 22 49 N | 088 54 31 W |
| Ballys Strip | Airport | 234 | Lee | 41 52 00 N | 089 26 30 W |
| Balmoral Elementary School | School | 233 | Will | 41 25 17 N | 087 38 22 W |
| Balmoral Park Race Track | Park | 229 | Will | 41 24 40 N | 087 37 33 W |
| Balmoral Park Racetrack | Park | 226 | Lake | 41 24 50 N | 087 37 35 W |
| Balmoral Woods Estates Country Club | Locale | 221 | Will | 41 24 20 N | 087 37 00 W |
| Balthazor School (historical) | School | 194 | Kankakee | 41 05 24 N | 087 57 20 W |
| Baltimore Cemetery | Cemetery | 141 | Wayne | 38 16 43 N | 088 33 10 W |
| Baltimore School (historical) | School | 201 | Edgar | 39 39 27 N | 087 53 23 W |
| Baltz Cemetery | Cemetery | 191 | St. Clair | 38 27 49 N | 090 09 09 W |
| Baltz School (historical) | School | 201 | St. Clair | 38 26 28 N | 090 08 28 W |
| Balzekas Museum | Building | 186 | Cook | 41 46 28 N | 087 43 23 W |
| Balzer Park | Park | 203 | Lake | 42 11 42 N | 087 53 25 W |
| Bamblett Cemetery | Cemetery | 285 | Boone | 42 27 27 N | 088 54 35 W |
| Bamblett School (historical) | School | 285 | Boone | 42 27 28 N | 088 54 34 W |