Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Ironsides Mine | Mine | 254 | Lawrence | 35 08 48 N | 087 30 52 W |
| Irontop Mine | Mine | 256 | Wayne | 35 22 13 N | 087 40 43 W |
| Ironville (historical) | Populated Place | 615 | Johnson | 36 19 45 N | 081 58 19 W |
| Ironwood Golf Course | Locale | 334 | Putnam | 36 12 30 N | 085 31 05 W |
| Ironworks Ridge | Ridge | 395 | Hawkins | 36 22 00 N | 083 13 34 W |
| Iroquois Estates (subdivision) | Populated Place | 203 | Williamson | 36 01 39 N | 086 48 14 W |
| Iroquois Meadows | Populated Place | 189 | Davidson | 36 03 00 N | 086 53 20 W |
| Irvin Branch | Stream | | Hardin | 35 09 19 N | 088 07 46 W |
| Irvin Branch | Stream | | Hickman | 35 42 58 N | 087 16 56 W |
| Irvin Branch | Stream | | White | 35 58 41 N | 085 35 52 W |
| Irvin Cemetery | Cemetery | 246 | Williamson | 35 45 54 N | 086 47 18 W |
| Irvin Hollow | Valley | | Washington | 36 24 00 N | 082 36 32 W |
| Irving College | Populated Place | 288 | Warren | 35 35 02 N | 085 42 48 W |
| Irving College Elementary School | School | 288 | Warren | 35 35 02 N | 085 42 54 W |
| Irving Meador Cemetery | Cemetery | | Macon | 36 33 40 N | 085 54 55 W |
| Irwin | Populated Place | 343 | Union | 36 19 48 N | 083 49 47 W |
| Irwin Branch | Stream | | Blount | 35 35 11 N | 084 05 09 W |
| Irwin Branch | Stream | | Wayne | 35 16 59 N | 087 47 16 W |
| Irwin Cemetery | Cemetery | 306 | Anderson | 36 10 29 N | 084 03 08 W |
| Irwin Cemetery | Cemetery | 311 | Union | 36 14 23 N | 083 58 48 W |
| Irwin Chapel | Church | 345 | Union | 36 19 47 N | 083 49 47 W |
| Irwin Chapel Cemetery | Cemetery | 343 | Union | 36 19 45 N | 083 49 43 W |
| Irwin Hills (subdivision) | Populated Place | 225 | Hamilton | 34 59 29 N | 085 08 30 W |
| Irwin School | School | 358 | Union | 36 19 52 N | 083 49 31 W |
| Irwinton Shores | Populated Place | 243 | Roane | 35 45 16 N | 084 39 45 W |
| Isaac Chapel | Church | 138 | Madison | 35 37 21 N | 088 41 19 W |
| Isaac Litton High School | School | 157 | Davidson | 36 13 41 N | 086 43 19 W |
| Isaac Miller Cemetery | Cemetery | 209 | Rutherford | 35 43 09 N | 086 22 44 W |
| Isaac Reed Cemetery | Cemetery | 160 | Hardin | 35 16 01 N | 088 10 34 W |
| Isaacs Cemetery | Cemetery | 1098 | Carter | 36 11 55 N | 082 00 07 W |
| Isabella | Populated Place | 492 | Polk | 35 01 40 N | 084 21 19 W |
| Isabella Baptist Church | Church | 509 | Polk | 35 01 35 N | 084 21 15 W |
| Isabella Mine | Mine | 498 | Polk | 35 02 01 N | 084 21 47 W |
| Isabella School (historical) | School | 497 | Polk | 35 01 39 N | 084 21 09 W |
| Isabella Stewart Mine | Mine | 259 | Hamilton | 35 03 33 N | 085 14 37 W |
| Isaiah Hollow | Valley | | Montgomery | 36 28 59 N | 087 35 54 W |
| Isbell | Populated Place | 210 | Maury | 35 32 02 N | 087 08 52 W |
| Isbell Branch | Stream | | Maury | 35 32 30 N | 087 09 08 W |
| Isbell Cemetery | Cemetery | 298 | McMinn | 35 29 12 N | 084 29 49 W |
| Isbell Gap | Gap | 369 | Monroe | 35 25 27 N | 084 19 43 W |
| Isbill Branch | Stream | | Hamilton | 35 00 44 N | 085 23 31 W |
| Iselin Station | Locale | 107 | Madison | 35 35 41 N | 088 47 48 W |
| Isenberg Cemetery | Cemetery | 356 | Hawkins | 36 21 21 N | 083 15 29 W |
| Ish Cemetery | Cemetery | 264 | Blount | 35 47 32 N | 084 08 41 W |
| Ish Creek | Stream | | Blount | 35 47 43 N | 084 08 32 W |
| Isham | Populated Place | 413 | Scott | 36 35 51 N | 084 26 20 W |
| Isham Cemetery | Cemetery | 253 | Roane | 35 47 15 N | 084 34 43 W |
| Isham Cemetery | Cemetery | 267 | Roane | 35 54 40 N | 084 33 37 W |
| Isham Cemetery | Cemetery | 412 | Scott | 36 35 19 N | 084 26 40 W |
| Isham Cemetery | Cemetery | 411 | Scott | 36 35 20 N | 084 26 42 W |
| Isham Creek | Stream | | Grundy | 35 29 28 N | 085 40 25 W |
| Isham Creek | Stream | | Scott | 36 35 15 N | 084 27 18 W |
| Isham Creek | Stream | | Scott | 36 35 14 N | 084 27 17 W |
| Ishs Fort (historical) | Military (Historical) | 256 | Blount | 35 47 20 N | 084 08 30 W |
| Island Branch | Stream | | Davidson | 36 12 40 N | 086 58 19 W |
| Island Creek | Stream | | Claiborne | 36 33 05 N | 083 33 25 W |
| Island Creek | Stream | | Monroe | 35 37 03 N | 084 14 39 W |
| Island Creek | Stream | | Morgan | 36 03 58 N | 084 39 24 W |
| Island Creek | Stream | | Polk | 35 05 36 N | 084 36 58 W |
| Island F | Island | 394 | Union | 36 18 19 N | 083 50 19 W |
| Island Ford | Locale | 250 | Anderson | 36 12 17 N | 084 05 33 W |
| Island Ford (historical) | Crossing | 311 | Claiborne | 36 28 53 N | 083 41 12 W |
| Island Ford (historical) | Crossing | 271 | Franklin | 35 15 09 N | 086 08 20 W |
| Island Ford (historical) | Crossing | 138 | Wilson | 36 18 15 N | 086 15 10 W |
| Island Ford Cemetery | Cemetery | 365 | Anderson | 36 13 11 N | 084 07 02 W |
| Island Ford Church | Church | 363 | Anderson | 36 13 12 N | 084 07 02 W |
| Island Ford Mill (historical) | Locale | 305 | Jefferson | 35 57 15 N | 083 29 25 W |
| Island Forty | Populated Place | 69 | Shelby | 35 17 44 N | 090 08 22 W |
| Island Forty Cemetery | Cemetery | 66 | Shelby | 35 17 17 N | 090 06 50 W |
| Island Forty Church (historical) | Church | 69 | Shelby | 35 17 24 N | 090 08 47 W |
| Island Forty Chute | Lake | 63 | Shelby | 35 15 38 N | 090 09 23 W |
| Island Home | Populated Place | 263 | Knox | 35 57 21 N | 083 53 05 W |
| Island Home Baptist Church | Church | 284 | Knox | 35 57 21 N | 083 52 47 W |
| Island Home Church | Church | 284 | Anderson | 36 12 03 N | 084 05 08 W |
| Island Home Church | Church | 267 | Knox | 35 56 41 N | 083 51 38 W |
| Island Number 35 | Island | 72 | Tipton | 35 31 06 N | 090 00 49 W |
| Island Number Eight (historical) | Island | 85 | Crockett | 35 49 12 N | 089 21 41 W |
| Island Number Eleven | Island | 87 | Haywood | 35 43 57 N | 089 13 47 W |
| Island Number Fifteen | Flat | 84 | Lake | 36 13 41 N | 089 40 33 W |
| Island Number Fifteen Dikes | Levee | 75 | Lake | 36 14 32 N | 089 39 42 W |
| Island Number Fifteen Revetment | Levee | 81 | Lake | 36 14 08 N | 089 40 22 W |
| Island Number Five (historical) | Island | 81 | Dyer | 35 54 27 N | 089 21 55 W |
| Island Number Forty Landing | Locale | 60 | Shelby | 35 17 14 N | 090 06 45 W |
| Island Number Four (historical) | Island | 81 | Dyer | 35 56 36 N | 089 24 11 W |
| Island Number Nine Revetment | Levee | 87 | Lake | 36 29 20 N | 089 24 50 W |
| Island Number One (historical) | Island | 76 | Dyer | 35 59 48 N | 089 26 05 W |
| Island Number Seven (historical) | Island | 82 | Crockett | 35 49 55 N | 089 21 23 W |
| Island Number Six | Island | 82 | Lauderdale | 35 52 24 N | 089 20 31 W |
| Island Number Ten | Island | 87 | Haywood | 35 44 03 N | 089 14 07 W |
| Island Number Thirteen | Flat | 85 | Lake | 36 19 35 N | 089 34 31 W |
| Island Number Thirteen (historical) | Island | 93 | Crockett | 35 41 38 N | 089 04 23 W |
| Island Number Thirty | Island | 70 | Lauderdale | 35 41 53 N | 089 57 06 W |
| Island Number Thirty Revetment | Levee | 72 | Lauderdale | 35 42 14 N | 089 56 52 W |
| Island Number Thirty-five | Island | 72 | Tipton | 35 31 06 N | 090 00 49 W |
| Island Number Thirty-four | Island | 73 | Lauderdale | 35 34 04 N | 089 56 28 W |
| Island Number Thirty-nine | Flat | 67 | Shelby | 35 20 38 N | 090 06 12 W |
| Island Number Thirty-seven | Flat | 67 | Tipton | 35 27 18 N | 090 05 44 W |
| Island Number Three (historical) | Island | 79 | Dyer | 35 59 18 N | 089 25 10 W |
| Island Number Twelve | Flat | 85 | Lake | 36 24 45 N | 089 29 33 W |
| Island Number Twelve | Island | 90 | Haywood | 35 41 58 N | 089 09 53 W |
| Island Number Twenty | Island | 79 | Dyer | 36 00 28 N | 089 43 25 W |
| Island Number Twenty Bar | Bar | 75 | Dyer | 36 01 20 N | 089 42 08 W |
| Island Number Twenty-one | Island | 78 | Dyer | 35 58 06 N | 089 42 01 W |
| Island Number Twentyone Chute | Channel | 71 | Dyer | 35 58 35 N | 089 41 16 W |
| Island Number Twentyone Chute Dike | Levee | 71 | Dyer | 35 57 38 N | 089 41 08 W |
| Island Number Twentyseven | Island | 78 | Lauderdale | 35 46 55 N | 089 47 30 W |
| Island Number Twentysix | Island | 77 | Lauderdale | 35 48 10 N | 089 45 07 W |
| Island Number Twentysix Bar | Bar | 68 | Lauderdale | 35 49 11 N | 089 42 15 W |
| Island Number Twentysix Revetment | Levee | 72 | Lauderdale | 35 47 12 N | 089 46 12 W |
| Island Number Two (historical) | Island | 78 | Dyer | 35 59 50 N | 089 24 51 W |