Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Falmouth Chapel | Church | 167 | Jasper | 39 02 38 N | 088 09 07 W |
| Fame Evangelical Church | Church | 187 | Shelby | 39 34 02 N | 089 00 53 W |
| Family Christian Fellowship Church | Church | 235 | Winnebago | 42 19 45 N | 089 05 51 W |
| Family Church of the Nazarene | Church | 180 | La Salle | 41 31 44 N | 088 40 58 W |
| Family Pray Band Holiness Church | Church | 179 | Cook | 41 49 47 N | 087 37 53 W |
| Fancher | Populated Place | 187 | Shelby | 39 16 03 N | 088 46 23 W |
| Fancher Creek | Stream | | Cass | 40 03 16 N | 090 01 40 W |
| Fancy Creek | Stream | | Rock Island | 41 26 49 N | 090 42 29 W |
| Fancy Creek | Stream | | Sangamon | 39 52 10 N | 089 34 58 W |
| Fancy Creek Cemetery | Cemetery | 174 | Sangamon | 39 56 47 N | 089 36 48 W |
| Fancy Creek School (historical) | School | 180 | Sangamon | 39 56 20 N | 089 37 08 W |
| Fancy Prairie | Populated Place | 188 | Menard | 39 59 51 N | 089 35 58 W |
| Fancy Prairie Elementary School | School | 188 | Menard | 39 59 50 N | 089 36 10 W |
| Fancy Prairie Number 3 Election Precinct | Civil | 190 | Menard | 40 00 13 N | 089 37 01 W |
| Fandon | Populated Place | 204 | McDonough | 40 22 06 N | 090 45 41 W |
| Fandon Christian Church | Church | 204 | McDonough | 40 22 04 N | 090 45 47 W |
| Fandon School (historical) | School | 205 | McDonough | 40 22 10 N | 090 45 50 W |
| Fanning Ollie Cemetery | Cemetery | 197 | Morgan | 39 33 17 N | 090 04 51 W |
| Fanny Branch | Stream | | Fayette | 39 12 04 N | 088 51 56 W |
| Fans Field | Park | 209 | Macon | 39 51 41 N | 088 56 08 W |
| Far Field | Airport | 254 | Henry | 42 12 03 N | 088 37 20 W |
| Far View | Populated Place | 262 | Kane | 41 57 25 N | 088 25 04 W |
| Faraday Elementary School | School | 182 | Cook | 41 52 47 N | 087 42 28 W |
| Faraday Hall | Building | 259 | DeKalb | 41 55 59 N | 088 45 53 W |
| Faraday Hall West | Building | 259 | DeKalb | 41 55 58 N | 088 45 55 W |
| Fargo | Populated Place | 227 | Brown | 39 58 25 N | 090 51 17 W |
| Fargo Cemetery | Cemetery | 220 | Brown | 39 58 38 N | 090 50 40 W |
| Fargo Run | Stream | | Peoria | 40 48 40 N | 089 45 46 W |
| Faries Park | Park | 205 | Macon | 39 52 24 N | 088 52 57 W |
| Faries Park (historical) | Populated Place | 192 | Macon | 39 52 17 N | 088 52 37 W |
| Farina | Populated Place | 177 | Fayette | 38 50 03 N | 088 46 20 W |
| Farina Cemetery | Cemetery | 174 | Fayette | 38 50 23 N | 088 47 33 W |
| Farina Post Office | Post Office | 176 | Fayette | 38 49 59 N | 088 46 27 W |
| Farley School (historical) | School | 272 | DeKalb | 41 56 36 N | 088 48 42 W |
| Farlows Grove Cemetery | Cemetery | 223 | Mercer | 41 15 13 N | 090 36 01 W |
| Farm Aerial Service Incorporated Airport | Airport | 213 | McLean | 40 19 20 N | 089 10 00 W |
| Farm Creek | Stream | | Tazewell | 40 41 09 N | 089 34 34 W |
| Farm Creek Dams | Dam | 170 | Tazewell | 40 40 17 N | 089 30 03 W |
| Farm Pond | Reservoir | 214 | Edgar | 39 31 00 N | 087 36 12 W |
| Farm Pond | Reservoir | 235 | Pike | 39 40 24 N | 090 55 00 W |
| Farm Pond Dam | Dam | 214 | Edgar | 39 31 00 N | 087 36 12 W |
| Farm Pond Dam | Dam | 235 | Pike | 39 40 24 N | 090 55 00 W |
| Farm Quarry Number 110 | Mine | 234 | Winnebago | 42 22 39 N | 089 17 10 W |
| Farm Ridge | Populated Place | 196 | La Salle | 41 13 30 N | 088 54 47 W |
| Farm Trails North Nature Preserve | Park | 225 | Lake | 42 14 15 N | 088 10 01 W |
| Farmdale | Populated Place | 165 | Tazewell | 40 39 57 N | 089 30 40 W |
| Farmdale Cemetery | Cemetery | 223 | Tazewell | 40 39 51 N | 089 28 15 W |
| Farmdale Dam | Dam | 171 | Tazewell | 40 40 18 N | 089 30 06 W |
| Farmdale Recreation Area | Park | 184 | Tazewell | 40 40 16 N | 089 29 20 W |
| Farmdale Reservoir | Reservoir | 171 | Tazewell | 40 40 18 N | 089 30 06 W |
| Farmer Cemetery | Cemetery | 176 | Cumberland | 39 14 27 N | 088 17 15 W |
| Farmer Cemetery | Cemetery | 153 | Fayette | 38 51 07 N | 089 06 35 W |
| Farmer City | Populated Place | 221 | De Witt | 40 14 36 N | 088 38 33 W |
| Farmer City Cemetery | Cemetery | 221 | De Witt | 40 14 23 N | 088 38 41 W |
| Farmer City Post Office | Post Office | 221 | De Witt | 40 14 35 N | 088 38 30 W |
| Farmer City Public Pool | Park | 222 | De Witt | 40 14 56 N | 088 38 47 W |
| Farmer School (historical) | School | 132 | Wayne | 38 30 55 N | 088 11 52 W |
| Farmers Academy (historical) | School | 231 | Warren | 40 54 51 N | 090 41 23 W |
| Farmers Bluff Church (historical) | Church | 206 | Johnson | 37 30 56 N | 088 57 52 W |
| Farmers Chapel Cemetery | Cemetery | 196 | Vermilion | 40 11 09 N | 087 36 42 W |
| Farmers Chapel United Methodist Church | Church | 201 | Vermilion | 40 11 12 N | 087 36 46 W |
| Farmers Fork | Stream | | McDonough | 40 31 24 N | 090 33 40 W |
| Farmers Landing | Locale | 109 | Randolph | 37 56 43 N | 089 54 15 W |
| Farmers Point Cemetery | Cemetery | 189 | Menard | 39 56 35 N | 089 50 41 W |
| Farmers Ridge | Ridge | 232 | Calhoun | 39 22 58 N | 090 43 24 W |
| Farmers Ridge Church | Church | 221 | Calhoun | 39 23 12 N | 090 44 16 W |
| Farmers Ridge School (historical) | School | 204 | Calhoun | 39 23 03 N | 090 45 12 W |
| Farmersville | Populated Place | 196 | Montgomery | 39 26 36 N | 089 39 06 W |
| Farmersville Cemetery | Cemetery | 250 | Ford | 40 25 39 N | 088 13 37 W |
| Farmersville Elementary School | School | 194 | Montgomery | 39 26 23 N | 089 38 52 W |
| Farmersville School (historical) | School | 246 | Ford | 40 25 17 N | 088 12 47 W |
| Farmerville School (historical) | School | 114 | White | 38 14 43 N | 088 08 27 W |
| Farmingdale | Populated Place | 177 | Sangamon | 39 49 22 N | 089 48 22 W |
| Farmingdale Cemetery | Cemetery | 173 | Sangamon | 39 49 45 N | 089 47 56 W |
| Farmingdale Elementary School | School | 175 | Sangamon | 39 50 12 N | 089 48 25 W |
| Farmingdale School (historical) | School | 246 | Winnebago | 42 25 08 N | 089 18 07 W |
| Farmington | Populated Place | 226 | Fulton | 40 41 53 N | 090 00 21 W |
| Farmington | Populated Place | 222 | Kane | 41 56 41 N | 088 18 57 W |
| Farmington (subdivision) | Populated Place | 229 | Lake | 42 10 07 N | 088 02 39 W |
| Farmington Central School | School | 234 | Peoria | 40 41 37 N | 089 59 04 W |
| Farmington City Hall | Building | 227 | Fulton | 40 41 55 N | 090 00 14 W |
| Farmington Commons Park | Park | 204 | Will | 41 42 59 N | 088 06 58 W |
| Farmington Fire Station | Building | 227 | Fulton | 40 41 55 N | 090 00 10 W |
| Farmington High School | School | 228 | Fulton | 40 41 47 N | 089 59 48 W |
| Farmington Park | Park | 207 | Will | 41 43 25 N | 088 06 57 W |
| Farmington Post Office | Post Office | 227 | Fulton | 40 41 54 N | 090 00 21 W |
| Farmington Post Office | Post Office | 226 | Fulton | 40 41 54 N | 090 00 23 W |
| Farmington Public Library | Building | 226 | Fulton | 40 41 53 N | 090 00 08 W |
| Farmora School (historical) | School | 200 | Bureau | 41 23 13 N | 089 35 41 W |
| Farmsville (historical) | Populated Place | 195 | Woodford | 40 37 15 N | 089 14 23 W |
| Farmwood Park | Park | 213 | DuPage | 41 57 03 N | 088 00 40 W |
| Farmwood Plaza Shopping Center | Locale | 216 | DuPage | 41 56 43 N | 088 01 02 W |
| Farnham School | School | 238 | Knox | 40 56 58 N | 090 20 45 W |
| Farnsworth Elementary School | School | 187 | Cook | 41 58 49 N | 087 45 59 W |
| Farnsworth Park | Park | 216 | Kane | 41 45 09 N | 088 16 51 W |
| Farnum Point | Cape | 179 | Lake | 42 25 06 N | 087 48 16 W |
| Farr Creek | Stream | | Kankakee | 41 11 08 N | 087 45 00 W |
| Farr School (historical) | School | 190 | Fulton | 40 15 44 N | 090 23 37 W |
| Farragut Career Academy | School | 183 | Cook | 41 50 55 N | 087 42 28 W |
| Farragut Elementary School | School | 196 | Will | 41 31 50 N | 088 05 57 W |
| Farrar Cemetery | Cemetery | 199 | Macoupin | 39 07 38 N | 089 43 40 W |
| Farren School | School | 183 | Cook | 41 48 10 N | 087 37 29 W |
| Farrington | Populated Place | 176 | Clark | 39 28 12 N | 087 32 46 W |
| Farrington Elementary School | School | 150 | Jefferson | 38 26 42 N | 088 45 24 W |
| Farrington School (historical) | School | 144 | Jefferson | 38 24 28 N | 088 44 48 W |
| Farrington School (historical) | School | 149 | Jefferson | 38 24 08 N | 088 45 21 W |
| Farris Cemetery | Cemetery | 169 | Clark | 39 27 53 N | 087 35 14 W |
| Farris School (historical) | School | 145 | Hamilton | 38 03 37 N | 088 23 13 W |
| Farrow Cemetery | Cemetery | 149 | Calhoun | 39 18 02 N | 090 36 46 W |
| Farwell Bridge | Bridge | 224 | Stephenson | 42 18 51 N | 089 25 29 W |