Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Fisher School (historical) | School | 211 | Champaign | 39 57 09 N | 088 25 29 W |
| Fisher Woods | Woods | 211 | DuPage | 41 56 30 N | 087 57 51 W |
| Florid Cemetery | Cemetery | 211 | Putnam | 41 13 38 N | 089 16 55 W |
| Florid Cemetery | Cemetery | 211 | Putnam | 41 13 38 N | 089 16 56 W |
| Flossmoor Commons Shopping Center | Locale | 211 | Cook | 41 31 43 N | 087 41 50 W |
| Flying B Ranch Airport | Airport | 211 | Vermilion | 40 09 25 N | 087 40 28 W |
| Forest Lawn Cemetery | Cemetery | 211 | McDonough | 40 27 09 N | 090 43 09 W |
| Forest View Elementary School | School | 211 | Cook | 42 03 15 N | 087 58 00 W |
| Forrestal Elementary School | School | 211 | Lake | 42 18 07 N | 087 51 59 W |
| Fountaindale Public Library | Building | 211 | Will | 41 41 55 N | 088 04 43 W |
| Franzen School (historical) | School | 211 | Champaign | 40 16 09 N | 088 03 32 W |
| Froggie School (historical) | School | 211 | Hancock | 40 33 55 N | 091 14 08 W |
| Fruit Ridge School (historical) | School | 211 | Pike | 39 29 39 N | 090 50 38 W |
| Fullerton County Forest Preserve | Park | 211 | DuPage | 41 54 55 N | 088 00 52 W |
| Gamble School (historical) | School | 211 | Kankakee | 41 13 22 N | 087 40 45 W |
| Gardner School (historical) | School | 211 | Pike | 39 49 06 N | 090 52 15 W |
| Garfield Elementary School | School | 211 | Rock Island | 41 29 14 N | 090 30 53 W |
| Garfield Park | Park | 211 | Macon | 39 51 13 N | 088 58 10 W |
| Garfield School | School | 211 | Cook | 41 29 38 N | 087 37 54 W |
| Gartner Park | Park | 211 | DuPage | 41 44 56 N | 088 09 15 W |
| George Williams College Education Center | School | 211 | Kane | 41 45 13 N | 088 20 53 W |
| Georgetown Square Shopping Center | Locale | 211 | DuPage | 41 57 54 N | 087 59 47 W |
| Gerald H Hamer Airport | Airport | 211 | Bureau | 41 27 00 N | 089 10 00 W |
| Glenview Middle School | School | 211 | Rock Island | 41 29 55 N | 090 26 37 W |
| Glenwood Cemetery | Cemetery | 211 | Henry | 41 27 11 N | 090 24 14 W |
| Good Shepherd Lutheran Church | Church | 211 | DuPage | 41 44 48 N | 088 09 33 W |
| Good Shepherd Lutheran School | School | 211 | Rock Island | 41 29 56 N | 090 25 43 W |
| Gooseneck School (historical) | School | 211 | McDonough | 40 27 01 N | 090 44 00 W |
| Grace Church of the Nazarene (historical) | Church | 211 | DuPage | 41 46 29 N | 088 08 51 W |
| Grace Lutheran Church | Church | 211 | DuPage | 41 53 24 N | 087 58 48 W |