Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Le Grand | Populated Place | 284 | Marshall | 42 00 25 N | 092 46 32 W |
| Le Grand Bridge | Bridge | 258 | Marshall | 42 01 38 N | 092 47 01 W |
| Le Grand Bridge | Bridge | 256 | Tama | 42 01 54 N | 092 45 59 W |
| Le Grand Elevator Company Elevator | Locale | 281 | Marshall | 42 00 01 N | 092 46 36 W |
| Le Grand Fire Station | Building | 281 | Marshall | 42 00 23 N | 092 47 05 W |
| Le Grand Friends Cemetery | Cemetery | 281 | Marshall | 42 00 22 N | 092 47 09 W |
| Le Grand Pioneer Heritage Library | Building | 284 | Marshall | 42 00 25 N | 092 46 32 W |
| Le Grand Post Office | Post Office | 284 | Marshall | 42 00 23 N | 092 46 35 W |
| Le Mars | Locale | 377 | Plymouth | 42 47 30 N | 096 09 59 W |
| Le Mars | Populated Place | 376 | Plymouth | 42 47 39 N | 096 09 56 W |
| Le Mars Beauty College | School | 376 | Plymouth | 42 47 39 N | 096 09 56 W |
| Le Mars Bible Church | Church | 386 | Plymouth | 42 47 22 N | 096 09 44 W |
| Le Mars Church of Christ | Church | 396 | Plymouth | 42 47 30 N | 096 08 53 W |
| Le Mars Fire Department | Building | 376 | Plymouth | 42 47 33 N | 096 09 57 W |
| Le Mars High School | School | 378 | Plymouth | 42 46 55 N | 096 10 18 W |
| Le Mars Memorial Cemetery | Cemetery | 403 | Plymouth | 42 47 15 N | 096 09 01 W |
| Le Mars Middle School | School | 379 | Plymouth | 42 46 50 N | 096 10 19 W |
| Le Mars Municipal Airport | Airport | 364 | Plymouth | 42 46 40 N | 096 11 37 W |
| Le Mars Municipal Golf Course | Locale | 370 | Plymouth | 42 48 10 N | 096 08 56 W |
| Le Mars Municipal Park | Park | 369 | Plymouth | 42 48 07 N | 096 09 02 W |
| Le Mars Optometric Center | Hospital | 376 | Plymouth | 42 47 38 N | 096 09 57 W |
| Le Mars Optometric Clinic | Hospital | 373 | Plymouth | 42 47 38 N | 096 10 08 W |
| Le Mars Police Department | Building | 375 | Plymouth | 42 47 43 N | 096 09 59 W |
| Le Mars Post Office | Post Office | 372 | Plymouth | 42 47 39 N | 096 10 13 W |
| Le Mars Public Library | Building | 376 | Plymouth | 42 47 29 N | 096 10 03 W |
| Le Roy | Populated Place | 340 | Decatur | 40 52 40 N | 093 35 34 W |
| Le Roy (historical) | Locale | 340 | Decatur | 40 52 40 N | 093 35 34 W |
| Le Roy Post Office (historical) | Post Office | 340 | Decatur | 40 52 40 N | 093 35 34 W |
| Le Roy Township Cemetery | Cemetery | 325 | Bremer | 42 51 42 N | 092 15 23 W |
| Leach Park | Park | | Scott | 41 31 25 N | 090 30 59 W |
| Lead Island | Island | 158 | Lee | 40 38 37 N | 091 14 46 W |
| Lead Island Chute | Stream | | Lee | 40 38 41 N | 091 15 48 W |
| Leando | Populated Place | 193 | Van Buren | 40 50 01 N | 092 05 20 W |
| Leando Cemetery | Cemetery | 193 | Van Buren | 40 49 37 N | 092 05 19 W |
| Leando Post Office (historical) | Post Office | 193 | Van Buren | 40 50 01 N | 092 05 20 W |
| Leanne's Place | Hospital | 334 | Wayne | 40 45 26 N | 093 19 22 W |
| Lear | Populated Place | 312 | Grundy | 42 31 39 N | 092 44 20 W |
| Lear Post Office (historical) | Post Office | 323 | Grundy | 42 30 50 N | 092 43 56 W |
| Learned | Locale | 381 | Pocahontas | 42 41 21 N | 094 43 18 W |
| Learned Post Office (historical) | Post Office | 376 | Pocahontas | 42 39 30 N | 094 41 01 W |
| Learning Resource Center | Building | 439 | Sioux | 42 59 52 N | 096 03 28 W |
| Leas Cemetery | Cemetery | 301 | Union | 40 54 30 N | 094 01 21 W |
| Leatham Cemetery | Cemetery | 334 | Boone | 42 02 56 N | 093 53 17 W |
| Leavitt Park | Park | 265 | Black Hawk | 42 29 03 N | 092 20 33 W |
| Lebanon | Populated Place | 416 | Sioux | 43 05 55 N | 096 21 24 W |
| Lebanon | Populated Place | 238 | Van Buren | 40 43 33 N | 092 04 57 W |
| Lebanon Cemetery | Cemetery | 233 | Van Buren | 40 43 34 N | 092 03 50 W |
| Lebanon Christian Reform Church Cemetery | Cemetery | 408 | Sioux | 43 05 58 N | 096 21 36 W |
| Lebanon Church | Church | 414 | Sioux | 43 05 56 N | 096 21 28 W |
| Lebanon Church | Church | 239 | Van Buren | 40 43 36 N | 092 04 56 W |
| Lebanon Post Office (historical) | Post Office | 238 | Van Buren | 40 43 33 N | 092 04 57 W |
| LeBaron Hall | Building | 291 | Story | 42 01 41 N | 093 38 50 W |
| LeClair Park | Park | 170 | Scott | 41 31 12 N | 090 34 35 W |
| LeClaire Hall | Building | 213 | Scott | 41 32 21 N | 090 34 51 W |
| LeClaire Prairie Cemetery | Cemetery | 230 | Scott | 41 38 00 N | 090 26 00 W |
| LeClere Landing Strip | Airport | 306 | Linn | 42 17 14 N | 091 28 12 W |
| Ledges State Park | Park | 319 | Boone | 41 58 60 N | 093 53 13 W |
| Ledgewood Creek | Stream | | Fremont | 40 41 50 N | 095 33 05 W |
| Ledyard | Populated Place | 352 | Kossuth | 43 25 18 N | 094 09 44 W |
| Ledyard (historical) | Locale | 350 | Kossuth | 43 25 20 N | 094 09 47 W |
| Ledyard Post Office | Post Office | 352 | Kossuth | 43 25 18 N | 094 09 44 W |
| Ledyard Public Library | Building | 352 | Kossuth | 43 25 18 N | 094 09 44 W |
| Lee (historical) | Populated Place | 344 | Ringgold | 40 35 16 N | 094 06 39 W |
| Lee Burial Plot | Cemetery | 204 | Des Moines | 40 46 55 N | 091 16 11 W |
| Lee Cemetery | Cemetery | 377 | Shelby | 41 33 20 N | 095 17 51 W |
| Lee Center Church | Church | 372 | Franklin | 42 36 04 N | 093 19 48 W |
| Lee County | Civil | 205 | Lee | 40 39 00 N | 091 29 01 W |
| Lee County Courthouse | Building | 169 | Lee | 40 37 56 N | 091 18 37 W |
| Lee County Courthouse | Building | 172 | Lee | 40 23 51 N | 091 23 03 W |
| Lee County Fairgrounds | Locale | 214 | Lee | 40 38 50 N | 091 33 37 W |
| Lee County Farm | Building | 205 | Lee | 40 27 44 N | 091 27 05 W |
| Lee County Speedway | Locale | 214 | Lee | 40 38 50 N | 091 33 35 W |
| Lee Grove Cemetery | Cemetery | 348 | Page | 40 43 05 N | 095 04 31 W |
| Lee Number Five School (historical) | School | 373 | Franklin | 42 36 05 N | 093 19 46 W |
| Lee Park | Park | 298 | Story | 42 01 53 N | 093 39 48 W |
| Lee Post Office (historical) | Post Office | 344 | Ringgold | 40 35 16 N | 094 06 39 W |
| Lee Post Office (historical) | Post Office | 378 | Union | 41 08 36 N | 094 15 36 W |
| Lee Tower | Building | 315 | Fayette | 42 50 25 N | 091 47 56 W |
| Lee Town Assembly Church | Church | 247 | Polk | 41 36 07 N | 093 33 56 W |
| Leech Cemetery | Cemetery | 200 | Van Buren | 40 47 02 N | 091 58 41 W |
| Leeds | Populated Place | 339 | Woodbury | 42 32 28 N | 096 21 36 W |
| Leeds (historical) | Locale | 339 | Woodbury | 42 32 30 N | 096 21 19 W |
| Leeds Elementary School | School | 342 | Woodbury | 42 32 15 N | 096 22 06 W |
| Leeds Park | Park | 339 | Woodbury | 42 32 26 N | 096 21 43 W |
| Leeds Post Office (historical) | Post Office | 339 | Woodbury | 42 32 28 N | 096 21 36 W |
| Leeper Prairie Preserve | Park | 307 | Butler | 42 44 20 N | 092 41 41 W |
| Lefever Post Office (historical) | Post Office | 366 | Madison | 41 09 30 N | 094 14 21 W |
| Legion Country Club | Locale | 412 | O'Brien | 42 59 02 N | 095 40 31 W |
| Legion Field | Park | 335 | Hardin | 42 31 06 N | 093 17 41 W |
| Legion Memorial Park | Park | 285 | Marshall | 42 01 54 N | 092 55 31 W |
| Legion Park | Park | 405 | Audubon | 41 42 52 N | 094 55 34 W |
| Legion Park | Park | 235 | Keokuk | 41 19 58 N | 092 13 03 W |
| Legion Park | Park | 263 | Linn | 42 01 35 N | 091 36 41 W |
| Legion Park | Park | 316 | Montgomery | 41 01 18 N | 095 13 50 W |
| Legion Park | Park | 248 | Polk | 41 34 40 N | 093 42 22 W |
| Lehfeld Cemetery | Cemetery | 425 | Crawford | 42 08 45 N | 095 22 21 W |
| Lehigh | Populated Place | 294 | Webster | 42 21 36 N | 094 03 08 W |
| Lehigh (historical) | Locale | 294 | Webster | 42 21 35 N | 094 03 06 W |
| Lehigh Fire Department | Building | 294 | Webster | 42 21 35 N | 094 03 06 W |
| Lehigh Post Office | Post Office | 294 | Webster | 42 21 35 N | 094 03 06 W |
| Lehigh Public Library | Building | 294 | Webster | 42 21 35 N | 094 03 06 W |
| Lehigh United Methodist Church | Church | 296 | Webster | 42 21 35 N | 094 03 09 W |
| Leif Erickson Park | Park | 370 | Woodbury | 42 31 20 N | 096 23 41 W |
| Leif Ericson Park | Park | 339 | Webster | 42 29 44 N | 094 11 59 W |
| Leighton | Populated Place | 236 | Mahaska | 41 20 14 N | 092 47 14 W |
| Leighton (historical) | Locale | 232 | Mahaska | 41 20 10 N | 092 47 09 W |
| Leighton Christian Reformed Church | Church | 236 | Mahaska | 41 20 14 N | 092 47 14 W |
| Leighton Elementary School | School | 240 | Mahaska | 41 20 17 N | 092 47 03 W |
| Leighton Post Office | Post Office | 236 | Mahaska | 41 20 14 N | 092 47 14 W |
| Leinen Park | Park | 379 | Shelby | 41 38 22 N | 095 19 49 W |