Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Jefferson Proving Ground | Locale | 277 | Ripley | 38 58 08 N | 085 22 12 W |
| Jefferson School | School | 262 | Adams | 40 36 56 N | 084 50 25 W |
| Jefferson School | School | 184 | Cass | 40 44 44 N | 086 22 11 W |
| Jefferson School | School | 150 | Daviess | 38 38 03 N | 087 10 22 W |
| Jefferson School | School | 284 | Delaware | 40 11 34 N | 085 23 38 W |
| Jefferson School | School | 251 | Howard | 40 27 57 N | 086 07 22 W |
| Jefferson School Number 7 | School | 218 | Marion | 39 45 48 N | 086 08 40 W |
| Jefferson Senior High School | School | 168 | Tippecanoe | 40 25 20 N | 086 53 26 W |
| Jefferson-Craig Elementary School | School | 147 | Switzerland | 38 44 30 N | 085 04 36 W |
| Jeffersonville | Populated Place | 136 | Clark | 38 16 39 N | 085 44 14 W |
| Jeffries Cemetery | Cemetery | 242 | Perry | 38 11 06 N | 086 29 18 W |
| Jeffries Cemetery | Cemetery | 270 | Whitley | 41 12 30 N | 085 20 24 W |
| Jeffries Ford Bridge | Bridge | 162 | Parke | 39 37 48 N | 087 12 30 W |
| Jeffries Run | Stream | | Parke | 39 38 29 N | 087 11 57 W |
| Jeffries School | School | 131 | Posey | 37 55 20 N | 087 56 56 W |
| Jenkins Cemetery | Cemetery | 253 | DeKalb | 41 19 37 N | 084 55 25 W |
| Jenkins Ditch | Canal | 259 | Clinton | 40 20 11 N | 086 23 39 W |
| Jenkins Ditch | Canal | 244 | Miami | 40 37 28 N | 086 05 12 W |
| Jenkinsville | Populated Place | 221 | Putnam | 39 31 58 N | 086 52 31 W |
| Jenks Cemetery | Cemetery | 220 | Franklin | 39 28 58 N | 085 11 21 W |
| Jennings Chapel | Church | 247 | Huntington | 40 45 20 N | 085 37 20 W |
| Jennings County | Civil | 202 | Jennings | 38 59 05 N | 085 36 34 W |
| Jenny Lind Run | Stream | | Clark | 38 23 40 N | 085 38 02 W |
| Jensen Ditch | Canal | 207 | LaPorte | 41 26 50 N | 086 36 45 W |
| Jeorse Park | Park | 181 | Lake | 41 39 07 N | 087 26 09 W |
| Jericho | Populated Place | 192 | Crawford | 38 11 57 N | 086 25 28 W |
| Jericho | Populated Place | 164 | Sullivan | 39 03 41 N | 087 17 51 W |
| Jericho Church | Church | 347 | Randolph | 40 09 00 N | 084 54 01 W |
| Jericho Creek | Stream | | Ripley | 39 10 37 N | 085 15 18 W |
| Jericho Creek | Stream | | Vermillion | 40 01 58 N | 087 27 08 W |
| Jericho School | School | 244 | Crawford | 38 22 32 N | 086 32 12 W |
| Jerome | Populated Place | 262 | Howard | 40 27 19 N | 085 55 51 W |
| Jerome Cemetery | Cemetery | 258 | Howard | 40 27 24 N | 085 56 14 W |
| Jerry Ross Park | Park | 219 | Lake | 41 25 06 N | 087 22 03 W |
| Jersey Park Creek | Stream | | Jasper | 38 21 35 N | 085 57 46 W |
| Jerusalem Baptist Church | Church | 185 | Lake | 41 35 06 N | 087 21 04 W |
| Jerusalem Church | Church | 256 | Marshall | 41 20 23 N | 086 05 47 W |
| Jerusalem School | School | 208 | DeKalb | 38 21 35 N | 085 57 46 W |
| Jesse McKesson Ditch | Canal | 235 | Marshall | 41 28 15 N | 086 22 11 W |
| Jesse-Pilfer Park | Park | 235 | Porter | 41 28 21 N | 087 04 11 W |
| Jessie-Ca Lake | Lake | 289 | Noble | 41 19 31 N | 085 23 15 W |
| Jessup | Populated Place | 161 | Parke | 39 39 26 N | 087 15 24 W |
| Jessup Covered Bridge | Bridge | 155 | Parke | 39 39 50 N | 087 15 23 W |
| Jesus Gift Apostolic Church | Church | 183 | Lake | 41 35 27 N | 087 21 22 W |
| Jet Run | Stream | | Martin | 38 39 08 N | 086 47 53 W |
| Jeto Lake | Reservoir | 251 | Hendricks | 39 47 21 N | 086 25 17 W |
| Jewell Village | Populated Place | 198 | Bartholomew | 39 11 55 N | 085 50 59 W |
| Jim Ayers Hollow | Valley | | Brown | 39 06 19 N | 086 11 30 W |
| Jim Branch | Stream | | Parke | 39 54 11 N | 087 21 53 W |
| Jim Creek | Stream | | Greene | 39 09 02 N | 086 53 51 W |
| Jim Lake | Reservoir | 267 | Delaware | 40 20 57 N | 085 33 44 W |
| Jim Run | Stream | | Franklin | 39 28 46 N | 085 07 40 W |
| Jimmerson Lake | Lake | 293 | Steuben | 41 42 25 N | 085 03 28 W |
| Jimmerson Lake Dam | Dam | 293 | Steuben | 41 43 30 N | 085 05 00 W |
| Jimmy Sexton Hill | Summit | 231 | Monroe | 39 07 43 N | 086 25 05 W |
| Jimtown | Populated Place | 116 | Gibson | 38 16 23 N | 087 51 11 W |
| Jocinah Creek | Stream | | Grant | 40 38 41 N | 085 40 43 W |
| Jockey | Populated Place | 134 | Warrick | 38 10 42 N | 087 09 48 W |
| Joe Walk Hill | Summit | 258 | Harrison | 38 24 09 N | 086 14 47 W |
| Johanni Ditch | Canal | 209 | LaPorte | 41 28 39 N | 086 37 07 W |
| John Adams High School | School | 218 | St. Joseph | 41 40 00 N | 086 13 29 W |
| John Beard Elementary School | School | 241 | Montgomery | 40 02 12 N | 086 52 47 W |
| John Cring Memorial Forest | Park | 285 | Jay | 40 27 42 N | 084 57 25 W |
| John Diehl Ditch | Canal | 256 | DeKalb | 41 20 33 N | 085 03 39 W |
| John F Kennedy Branch Gary Public Library | Building | 192 | Lake | 41 32 47 N | 087 20 10 W |
| John F Kennedy Elementary School | School | 225 | St. Joseph | 41 40 48 N | 086 07 46 W |
| John F Kennedy Memorial Bridge | Bridge | 128 | Clark | 38 15 50 N | 085 44 36 W |
| John F Nuner Elementary School | School | 218 | St. Joseph | 41 39 47 N | 086 12 29 W |
| John Floyd Hollow | Valley | | Brown | 39 11 32 N | 086 20 31 W |
| John Glenn High School | School | 223 | St. Joseph | 41 27 27 N | 086 28 47 W |
| John Grubb Ridge | Ridge | 261 | Monroe | 39 02 44 N | 086 21 15 W |
| John H Castle Elementary School | School | 141 | Warrick | 37 59 24 N | 087 23 02 W |
| John H Vohr Elementary School | School | 183 | Lake | 41 35 55 N | 087 21 38 W |
| John Hays Lake | Reservoir | 177 | Washington | 38 41 25 N | 086 09 22 W |
| John Heath Ditch | Canal | 220 | Hamilton | 39 56 23 N | 086 04 12 W |
| John Hope Elementary School | School | 220 | Marion | 39 47 17 N | 086 08 12 W |
| John I Meister Elementary School | School | 192 | Lake | 41 33 30 N | 087 15 24 W |
| John J O'Brien Special Education School | School | 259 | St. Joseph | 41 37 56 N | 086 14 46 W |
| John L McCulloch Junior High School | School | 259 | Grant | 40 31 38 N | 085 39 52 W |
| John M Culver Elementary and Junior High School | School | 116 | Vanderburgh | 37 57 31 N | 087 33 42 W |
| John Marshall Elementary School | School | 261 | St. Joseph | 41 38 10 N | 086 13 34 W |
| John Mattern Ditch | Canal | 244 | Marshall | 41 24 03 N | 086 09 01 W |
| John McDonald Ditch | Canal | 164 | Jackson | 38 52 44 N | 085 50 01 W |
| John S Irwin Elementary School | School | 245 | Allen | 41 03 05 N | 085 06 45 W |
| John Seitz Bridge | Bridge | 140 | Dubois | 38 27 21 N | 086 52 16 W |
| John Simatovich Elementary School | School | 205 | Porter | 41 30 23 N | 087 08 51 W |
| John Smith Ditch | Canal | 267 | DeKalb | 41 28 12 N | 084 52 10 W |
| John Stewart Memorial Settlement House | Building | 184 | Lake | 41 35 16 N | 087 20 08 W |
| John Strange Elementary School | School | 234 | Marion | 39 52 10 N | 086 06 21 W |
| John Thompson County Ditch | Canal | 174 | Jackson | 39 00 40 N | 085 53 28 W |
| John W Kendall Elementary School | School | 259 | Grant | 40 34 25 N | 085 41 23 W |
| John Wesley Free Methodist Church | Church | 243 | Marion | 39 50 19 N | 086 15 52 W |
| John Wood Elementary School | School | 202 | Lake | 41 29 01 N | 087 15 39 W |
| Johnny Appleseed Memorial Park | Park | 231 | Allen | 41 06 37 N | 085 07 25 W |
| Johns Creek | Stream | | Wells | 40 45 39 N | 085 08 23 W |
| Johns Creek | Stream | | Wells | 40 39 11 N | 085 07 33 W |
| Johns Ditch | Canal | 207 | Carroll | 40 33 55 N | 086 35 41 W |
| Johns Ditch | Canal | 267 | Delaware | 40 14 56 N | 085 33 25 W |
| Johns Ditch | Canal | 255 | Wells | 40 39 36 N | 085 09 27 W |
| Johnsburg | Populated Place | 148 | Dubois | 38 13 04 N | 086 57 20 W |
| Johnson | Populated Place | 131 | Gibson | 38 16 40 N | 087 44 45 W |
| Johnson Bay | Bay | 259 | Kosciusko | 41 24 34 N | 085 41 10 W |
| Johnson Branch | Stream | | Putnam | 39 32 34 N | 086 59 07 W |
| Johnson Branch | Stream | | Warren | 40 16 31 N | 087 22 32 W |
| Johnson Cemetery | Cemetery | 278 | Hendricks | 39 54 59 N | 086 23 51 W |
| Johnson Cemetery | Cemetery | 128 | Knox | 38 31 54 N | 087 28 37 W |
| Johnson Cemetery | Cemetery | 140 | Pike | 38 27 25 N | 087 16 37 W |
| Johnson Cemetery | Cemetery | 235 | Shelby | 39 33 54 N | 085 53 58 W |
| Johnson Cemetery | Cemetery | 172 | Sullivan | 39 08 07 N | 087 32 30 W |
| Johnson Cemetery | Cemetery | 226 | Tippecanoe | 40 18 05 N | 086 46 04 W |