Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Goreville Number 2 Election Precinct | Civil | 221 | Johnson | 37 32 51 N | 088 56 47 W |
| Goreville United Methodist Church | Church | 226 | Johnson | 37 33 10 N | 088 58 22 W |
| Gorham | Populated Place | 110 | Jackson | 37 43 06 N | 089 29 09 W |
| Gorham School | School | 189 | Grundy | 41 16 08 N | 088 29 38 W |
| Gorham United Methodist Church | Church | 183 | Cook | 41 47 34 N | 087 37 16 W |
| Gorin Hall | Building | 197 | Macon | 39 50 32 N | 088 58 31 W |
| Gorman | Populated Place | 170 | Grundy | 41 15 40 N | 088 20 30 W |
| Gorman School (historical) | Locale | 210 | La Salle | 41 12 35 N | 088 38 44 W |
| Gorman School (historical) | School | 231 | La Salle | 41 35 03 N | 089 04 10 W |
| Gorman School (historical) | School | 204 | Vermilion | 40 09 26 N | 087 51 49 W |
| Gormley School (historical) | School | 269 | DeKalb | 41 52 41 N | 088 41 18 W |
| Gorsuch Cemetery | Cemetery | 180 | Schuyler | 40 12 07 N | 090 27 27 W |
| Gorton Community Center | Building | 209 | Lake | 42 15 02 N | 087 50 14 W |
| Gorton School (historical) | School | 198 | Kendall | 41 41 47 N | 088 24 28 W |
| Gorton School (historical) | School | 208 | Lake | 42 15 03 N | 087 50 13 W |
| Goshen School (historical) | School | 198 | Macoupin | 39 24 45 N | 090 02 30 W |
| Goshen School (historical) | School | 168 | Madison | 38 46 55 N | 089 56 14 W |
| Goshen School (historical) | School | 231 | Stark | 41 06 23 N | 089 55 33 W |
| Gosline Island | Island | 137 | Pike | 39 25 58 N | 091 00 10 W |
| Gospel Army Church (historical) | Church | 208 | Livingston | 40 44 44 N | 088 30 54 W |
| Gospel Assembly Church | Church | 197 | Jersey | 39 06 37 N | 090 19 23 W |
| Gospel Assembly Church | Church | 196 | Kendall | 41 40 47 N | 088 23 29 W |
| Gospel Assembly Church | Church | 135 | Perry | 38 00 43 N | 089 13 29 W |
| Gospel Assembly Church | Church | 212 | Rock Island | 41 29 04 N | 090 27 50 W |
| Gospel Assembly Church | Church | 118 | Saline | 37 48 43 N | 088 26 09 W |
| Gospel Chapel | Church | 180 | Cook | 41 57 08 N | 087 42 15 W |
| Gospel Chapel | School | 224 | DuPage | 41 53 47 N | 088 00 36 W |
| Gospel Chapel Hall | Church | 160 | Randolph | 38 07 32 N | 089 42 07 W |
| Gospel Crusader-Revival Tabernacle | Church | 183 | Cook | 41 41 50 N | 087 37 13 W |
| Gospel Experience | Church | 156 | Peoria | 40 43 03 N | 089 33 39 W |
| Gospel Kingdom Church | Church | 136 | Wabash | 38 24 44 N | 087 45 32 W |
| Gospel Mission Church | Church | 133 | Williamson | 37 49 17 N | 088 54 42 W |
| Gospel Mission Pentecostal Church | Church | 183 | Cook | 41 51 28 N | 087 43 28 W |
| Gospel Outreach Christian Fellowship Church | Church | 182 | Cook | 41 57 36 N | 087 40 22 W |
| Gospel Outreach of Chicago | Church | 179 | Cook | 41 56 23 N | 087 41 45 W |
| Gospel Presbyterian Church | Church | 223 | Cook | 42 01 26 N | 088 03 41 W |
| Gospel Tabernacle | Church | 192 | Montgomery | 39 09 22 N | 089 28 17 W |
| Gospel Temple | Church | 179 | Rock Island | 41 30 28 N | 090 30 18 W |
| Gospel Temple Missionary Baptist Church | Church | 187 | Cook | 41 42 25 N | 087 38 59 W |
| Gospel Way Bible Church | Church | 182 | Cook | 41 51 46 N | 087 37 22 W |
| Gospel Way Covenant Church | Church | 178 | Cook | 41 44 48 N | 087 33 37 W |
| Goss Cemetery | Cemetery | 158 | Richland | 38 46 07 N | 087 57 54 W |
| Goss School (historical) | School | 205 | Kankakee | 41 13 20 N | 087 45 36 W |
| Gossage Branch | Stream | | Effingham | 39 10 41 N | 088 45 27 W |
| Gossage Cemetery | Cemetery | 229 | Pope | 37 33 33 N | 088 30 55 W |
| Gossett | Populated Place | 149 | White | 37 55 24 N | 088 22 09 W |
| Gossett School (historical) | School | 204 | Edgar | 39 44 50 N | 087 46 58 W |
| Gossett Station | Locale | 126 | White | 37 55 22 N | 088 21 05 W |
| Gotter Pond | Reservoir | 180 | Jersey | 39 03 36 N | 090 10 48 W |
| Gotter Pond Dam | Dam | 180 | Jersey | 39 03 36 N | 090 10 48 W |
| Gottfred Subdivision (subdivision) | Populated Place | 222 | Winnebago | 42 14 09 N | 089 04 27 W |
| Gottlieb Memorial Hospital | Hospital | 191 | Cook | 41 54 41 N | 087 50 37 W |
| Gottschlag Park | Park | 168 | Will | 41 31 43 N | 088 03 41 W |
| Goudy Elementary School | School | 183 | Cook | 41 58 33 N | 087 39 30 W |
| Goudy Square Park | Park | 180 | Cook | 41 54 20 N | 087 37 36 W |
| Gougars | Populated Place | 186 | Will | 41 31 25 N | 088 00 17 W |
| Gough Airport | Airport | 232 | Edgar | 39 32 15 N | 087 52 26 W |
| Gough Landing Strip | Airport | 236 | Edgar | 39 32 20 N | 087 52 36 W |
| Gouin Park | Park | 195 | Cook | 41 55 23 N | 087 52 34 W |
| Gould Cemetery | Cemetery | 145 | Edwards | 38 26 39 N | 088 00 26 W |
| Gould Center Heliport | Airport | 213 | Cook | 42 03 08 N | 088 01 08 W |
| Gould Lake | Reservoir | 129 | Johnson | 37 28 28 N | 088 56 19 W |
| Gould School (historical) | School | 247 | Boone | 42 14 28 N | 088 47 16 W |
| Gould School (historical) | School | 260 | Lake | 42 17 30 N | 088 06 15 W |
| Gould School (historical) | School | 234 | Whiteside | 41 55 13 N | 089 44 40 W |
| Gould Souders School (historical) | School | 225 | Kane | 41 49 53 N | 088 27 48 W |
| Gouldtown Cemetery | Cemetery | 199 | La Salle | 41 29 35 N | 088 53 02 W |
| Gouldtown School (historical) | School | 203 | La Salle | 41 29 59 N | 088 53 12 W |
| Gourdneck School (historical) | School | 186 | Morgan | 39 33 42 N | 089 58 56 W |
| Government Rock | Summit | 250 | Union | 37 34 33 N | 089 26 08 W |
| Governor Bond Lake | Reservoir | 162 | Bond | 38 55 27 N | 089 23 55 W |
| Governors State University | School | 237 | Will | 41 26 56 N | 087 42 58 W |
| Governors Trail Park | Park | 214 | Cook | 41 30 02 N | 087 42 57 W |
| Govig School (historical) | School | 283 | Ogle | 41 53 56 N | 088 57 37 W |
| Gowansville (historical) | Populated Place | 133 | Pope | 37 26 31 N | 088 28 40 W |
| Gowdy Creek | Stream | | White | 38 07 01 N | 088 21 33 W |
| Gowe Park | Park | 201 | Lake | 42 21 56 N | 087 55 04 W |
| Gower Middle School | School | 220 | DuPage | 41 44 38 N | 087 55 58 W |
| Gower School | School | 215 | DuPage | 41 45 02 N | 087 55 58 W |
| Gower School (historical) | School | 217 | DuPage | 41 44 59 N | 087 55 56 W |
| Gower West Elementary School | School | 224 | DuPage | 41 44 56 N | 087 57 18 W |
| Gowins | Populated Place | 129 | Pope | 37 26 37 N | 088 28 04 W |
| Grabtree Park | Park | 207 | DuPage | 41 44 42 N | 088 03 17 W |
| Grace Abbott Homes (subdivision) | Populated Place | 181 | Cook | 41 51 48 N | 087 39 53 W |
| Grace and Glory Gospel Chapel | Church | 179 | Cook | 41 45 15 N | 087 37 13 W |
| Grace and Peace Lutheran Church | Church | 232 | Peoria | 40 46 56 N | 089 36 10 W |
| Grace Apostolic Assembly Church | Church | 158 | Peoria | 40 40 16 N | 089 38 33 W |
| Grace Apostolic Church | Church | 179 | Cook | 41 44 44 N | 087 33 09 W |
| Grace Baptist Church | Church | 231 | DuPage | 41 46 23 N | 088 01 02 W |
| Grace Baptist Church | Church | 167 | Grundy | 41 23 52 N | 088 24 10 W |
| Grace Baptist Church | Church | 186 | La Salle | 41 19 27 N | 088 49 53 W |
| Grace Baptist Church | Church | 129 | Madison | 38 42 17 N | 090 07 37 W |
| Grace Baptist Church | Church | 233 | McLean | 40 30 06 N | 089 00 27 W |
| Grace Baptist Church | Church | 157 | Peoria | 40 41 34 N | 089 36 14 W |
| Grace Baptist Church | Church | 175 | Rock Island | 41 27 51 N | 090 27 17 W |
| Grace Baptist Church | Church | 190 | Shelby | 39 37 37 N | 089 01 10 W |
| Grace Baptist Church | Church | 193 | Will | 41 36 12 N | 088 03 05 W |
| Grace Baptist Church | School | 185 | Kankakee | 41 06 10 N | 087 49 41 W |
| Grace Baptist Church of Lombard | Church | 219 | DuPage | 41 51 51 N | 088 00 22 W |
| Grace Bible Church | Church | 205 | DuPage | 41 53 11 N | 087 57 15 W |
| Grace Bible Church | Church | 244 | Jo Daviess | 42 20 09 N | 090 08 44 W |
| Grace Bible Church | Church | 175 | Will | 41 31 12 N | 088 11 49 W |
| Grace Bible Church of Berwyn | Church | 189 | Cook | 41 51 27 N | 087 47 47 W |
| Grace Bible Missionary Church | Church | 212 | Rock Island | 41 30 10 N | 090 27 23 W |
| Grace Cemetery | Cemetery | 186 | Morgan | 39 48 12 N | 090 26 03 W |
| Grace Cemetery | Cemetery | 195 | Shelby | 39 21 15 N | 088 37 37 W |
| Grace Chapel (historical) | Church | 179 | Morgan | 39 49 20 N | 090 17 18 W |
| Grace Church | Church | 172 | Crawford | 38 56 50 N | 087 36 14 W |
| Grace Church | Church | 242 | DuPage | 41 58 29 N | 088 08 28 W |
| Grace Church | Church | 207 | DuPage | 41 45 32 N | 088 08 18 W |