Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| First Lutheran Church | Church | 219 | Marion | 39 46 37 N | 086 09 22 W |
| First Mennonite Church | Church | 228 | Marion | 39 51 44 N | 086 07 21 W |
| First Meridian Heights Presbyterian Church | Church | 225 | Marion | 39 50 27 N | 086 08 55 W |
| First Methodist Church | Church | 290 | LaGrange | 41 38 37 N | 085 25 12 W |
| First Methodist Church | Church | 297 | LaGrange | 41 32 01 N | 085 16 17 W |
| First Methodist Episcopal Church (historical) | Church | 178 | Lake | 41 37 44 N | 087 29 01 W |
| First Missionary Church | Church | 264 | Adams | 40 38 56 N | 084 57 23 W |
| First of Speedway Church | Church | 227 | Marion | 39 46 15 N | 086 15 01 W |
| First Pilgrims Holiness Church | Church | 184 | Lake | 41 35 22 N | 087 30 30 W |
| First Presbyterian Church | Church | 181 | Lake | 41 36 17 N | 087 31 18 W |
| First Presbyterian Church | Church | 188 | Lake | 41 33 18 N | 087 27 15 W |
| First Presbyterian Church | Church | 254 | Porter | 41 29 58 N | 087 03 15 W |
| First Presbyterian Church (historical) | Church | 236 | Porter | 41 28 07 N | 087 03 36 W |
| First Reformed Church | Church | 200 | Jasper | 41 11 16 N | 087 14 09 W |
| First Roumanian Baptist Church (historical) | Church | 183 | Lake | 41 35 20 N | 087 20 28 W |
| First Salem Church | Church | 259 | Howard | 40 24 24 N | 085 57 24 W |
| First Society of Friends Church | Church | 229 | Marion | 39 51 45 N | 086 06 50 W |
| First Southern Baptist Church | Church | 253 | Marion | 39 49 33 N | 086 04 29 W |
| First Southern Baptist Church | Church | 193 | Porter | 41 34 18 N | 087 11 26 W |
| First Southern Baptist Church of Aetna (historical) | Church | 186 | Lake | 41 35 19 N | 087 17 20 W |
| First Tabernacle Baptist Church | Church | 192 | Lake | 41 32 38 N | 087 20 41 W |
| First Trinity Evangelical Lutheran Church | Church | 252 | Marion | 39 49 56 N | 086 04 45 W |
| First Unitarian Church of Hobart | Church | 191 | Lake | 41 31 48 N | 087 15 13 W |
| First United Lutheran Church | Church | 184 | Lake | 41 35 31 N | 087 31 18 W |
| First United Methodist Church | Church | 184 | Lake | 41 35 35 N | 087 31 18 W |
| First United Methodist Church | Church | 188 | Lake | 41 32 19 N | 087 25 53 W |
| First United Methodist Church | Church | 209 | Lake | 41 17 29 N | 087 25 06 W |
| First United Methodist Church | Church | 190 | Lake | 41 31 56 N | 087 15 09 W |
| First United Methodist Church | Church | 236 | Porter | 41 28 08 N | 087 03 36 W |
| First United Pentecostal Church | Church | 217 | Lake | 41 27 03 N | 087 21 10 W |
| First United Presbyterian Church | Church | 180 | Lake | 41 38 41 N | 087 27 02 W |
| First United Presbyterian Church | Church | 183 | Lake | 41 36 01 N | 087 20 35 W |
| First United Presbyterian Church | Church | 201 | Porter | 41 33 27 N | 087 10 24 W |
| Fiscus Cemetery | Cemetery | 171 | Owen | 39 13 35 N | 087 00 04 W |
| Fish Cemetery | Cemetery | 256 | Hancock | 39 47 04 N | 085 56 46 W |
| Fish Creek | Stream | | Jennings | 39 04 35 N | 085 38 13 W |
| Fish Creek | Stream | | LaPorte | 41 34 26 N | 086 32 32 W |
| Fish Creek | Stream | | Owen | 39 10 08 N | 086 53 38 W |
| Fish Creek Cemetery | Cemetery | 214 | Jennings | 39 04 14 N | 085 38 25 W |
| Fish Hatchery Lake | Reservoir | 188 | Morgan | 39 29 04 N | 086 23 12 W |
| Fish Hatchery Lake Dam | Dam | 188 | Morgan | 39 29 04 N | 086 23 12 W |
| Fish Lake | Lake | 274 | Elkhart | 41 34 53 N | 085 39 54 W |
| Fish Lake | Lake | 257 | Kosciusko | 41 09 53 N | 085 50 06 W |
| Fish Lake | Lake | 284 | LaGrange | 41 37 20 N | 085 19 50 W |
| Fish Lake | Lake | 248 | LaGrange | 41 45 30 N | 085 38 41 W |
| Fish Lake | Lake | 316 | Steuben | 41 45 01 N | 084 55 37 W |
| Fish Lake | Populated Place | 213 | LaPorte | 41 34 00 N | 086 33 07 W |
| Fish Run | Stream | | Dubois | 38 23 41 N | 086 58 31 W |
| Fish Slough | Lake | 105 | Posey | 37 48 45 N | 087 55 35 W |
| Fishback Creek | Stream | | Hendricks | 39 53 07 N | 086 18 40 W |
| Fisher Branch | Stream | | Marion | 39 45 32 N | 086 02 28 W |
| Fisher Brook | Stream | | Marion | 39 42 13 N | 086 01 16 W |
| Fisher Ditch | Canal | 246 | Allen | 41 15 16 N | 084 55 02 W |
| Fisher Ditch | Canal | 256 | Howard | 40 31 12 N | 085 57 06 W |
| Fisher Ditch | Canal | 203 | Jasper | 41 11 15 N | 087 00 43 W |
| Fisher Ditch | Canal | 214 | Shelby | 39 27 45 N | 085 56 29 W |
| Fisher Farm Airport | Airport | 228 | Huntington | 40 56 45 N | 085 22 12 W |
| Fisher Knobs | Summit | 179 | Spencer | 37 59 44 N | 087 05 24 W |
| Fisher Pond | Lake | 216 | Lake | 41 19 04 N | 087 13 31 W |
| Fisher-Gordon Ditch | Canal | 256 | Elkhart | 41 29 11 N | 086 01 23 W |
| Fishers | Populated Place | 249 | Hamilton | 39 57 20 N | 086 00 50 W |
| Fishers Creek | Stream | | Fayette | 39 37 07 N | 085 06 26 W |
| Fishers Elementary School | School | 250 | Hamilton | 39 57 15 N | 086 00 47 W |
| Fishers Fork | Stream | | Bartholomew | 39 09 54 N | 085 50 39 W |
| Fishersburg | Populated Place | 258 | Madison | 40 04 19 N | 085 51 34 W |
| Fisherville | Populated Place | 135 | Warrick | 38 05 07 N | 087 25 59 W |
| Fishing Creek | Stream | | Orange | 38 45 11 N | 086 23 01 W |
| Fishing Creek Chapel | Church | 222 | Lawrence | 38 42 35 N | 086 21 15 W |
| Fishing Run | Stream | | Clark | 38 26 59 N | 085 53 43 W |
| Fishtown | Populated Place | 138 | Harrison | 38 04 10 N | 085 55 03 W |
| Fishtrap Lake | Lake | 242 | LaPorte | 41 37 55 N | 086 43 47 W |
| Fisk Creek | Stream | | Switzerland | 38 49 31 N | 084 49 52 W |
| Fiskville | Populated Place | 227 | Montgomery | 40 02 55 N | 086 53 41 W |
| Fites Lake | Lake | 290 | St. Joseph | 41 30 54 N | 085 16 12 W |
| Fitzers Ditch | Canal | 186 | Cass | 40 44 03 N | 086 29 20 W |
| Fitzgerrell Cemetery | Cemetery | 140 | Posey | 38 11 59 N | 087 48 05 W |
| Five Branch | Stream | | Scott | 38 43 53 N | 085 51 37 W |
| Five Corners Baptist Church | Church | 283 | LaGrange | 41 33 19 N | 085 21 59 W |
| Five Corners Cemetery | Cemetery | 252 | Miami | 40 56 44 N | 086 09 34 W |
| Five Points | Cape | 250 | Brown | 39 09 24 N | 086 11 26 W |
| Five Points | Populated Place | 221 | Allen | 41 07 24 N | 084 56 25 W |
| Five Points | Populated Place | 229 | Jefferson | 38 50 46 N | 085 30 33 W |
| Five Points | Populated Place | 156 | Knox | 38 36 37 N | 087 20 53 W |
| Five Points | Populated Place | 261 | Marion | 39 43 29 N | 086 02 42 W |
| Five Points | Populated Place | 238 | Morgan | 39 34 53 N | 086 19 01 W |
| Five Points | Populated Place | 267 | Switzerland | 38 44 48 N | 085 10 30 W |
| Five Points | Populated Place | 344 | Union | 39 42 43 N | 084 51 07 W |
| Five Points | Populated Place | 228 | Warren | 40 19 00 N | 087 19 12 W |
| Five Points | Populated Place | 259 | Wells | 40 34 54 N | 085 19 12 W |
| Five Points | Populated Place | 265 | Whitley | 41 11 34 N | 085 29 30 W |
| Five Points Corner | Populated Place | 210 | Porter | 41 19 58 N | 087 02 09 W |
| Flackville | Populated Place | 225 | Marion | 39 48 35 N | 086 13 15 W |
| Flackville School Number 100 | School | 227 | Marion | 39 48 29 N | 086 13 11 W |
| Flag Run | Stream | | Clark | 38 32 15 N | 085 35 28 W |
| Flake Cemetery | Cemetery | 208 | Morgan | 39 28 21 N | 086 17 54 W |
| Flat Branch | Stream | | Marion | 39 34 33 N | 085 58 49 W |
| Flat Creek | Stream | | Daviess | 38 40 19 N | 087 01 33 W |
| Flat Creek | Stream | | Dubois | 38 21 21 N | 086 53 24 W |
| Flat Creek | Stream | | Knox | 38 42 39 N | 087 20 27 W |
| Flat Creek | Stream | | Pike | 38 22 54 N | 087 19 00 W |
| Flat Creek | Stream | | Pike | 38 21 58 N | 087 02 35 W |
| Flat Creek | Stream | | Scott | 38 43 25 N | 085 47 27 W |
| Flat Creek | Stream | | Wells | 40 55 02 N | 085 23 21 W |
| Flat Creek Cemetery | Cemetery | 184 | Pike | 38 24 52 N | 087 10 23 W |
| Flat Creek Memorial Church | Church | 163 | Pike | 38 24 36 N | 087 08 46 W |
| Flat Iron | Populated Place | 188 | Vermillion | 40 03 12 N | 087 29 24 W |
| Flat Lake | Lake | 224 | Marshall | 41 19 45 N | 086 26 14 W |
| Flat Lake | Lake | 259 | Wabash | 41 01 57 N | 085 56 10 W |
| Flat Rock | Populated Place | 210 | Shelby | 39 21 51 N | 085 49 54 W |
| Flat Rock Cemetery | Cemetery | 199 | Bartholomew | 39 16 53 N | 085 54 16 W |