Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Lake Panorama Golf Course | Locale | 347 | Guthrie | 41 42 30 N | 094 24 51 W |
| Lake Panorama National Resort | Locale | 350 | Guthrie | 41 42 30 N | 094 24 41 W |
| Lake Park | Locale | 447 | Dickinson | 43 27 12 N | 095 19 21 W |
| Lake Park | Populated Place | 454 | Dickinson | 43 27 20 N | 095 19 15 W |
| Lake Park Care Center | Hospital | 454 | Dickinson | 43 27 20 N | 095 19 15 W |
| Lake Park City Fire Station | Building | 455 | Dickinson | 43 27 17 N | 095 19 19 W |
| Lake Park Community Health Center | Hospital | 454 | Dickinson | 43 27 20 N | 095 19 15 W |
| Lake Park Post Office | Post Office | 454 | Dickinson | 43 27 20 N | 095 19 15 W |
| Lake Park Public Library | Building | 454 | Dickinson | 43 27 20 N | 095 19 15 W |
| Lake Peosta Channel | Channel | 180 | Dubuque | 42 31 04 N | 090 39 05 W |
| Lake Pla-Mor | Reservoir | 250 | Jasper | 41 40 40 N | 092 50 20 W |
| Lake Ponderosa | Reservoir | 261 | Poweshiek | 41 34 55 N | 092 35 07 W |
| Lake Ponderosa Dam | Dam | 261 | Poweshiek | 41 34 45 N | 092 34 56 W |
| Lake Post Office (historical) | Post Office | 217 | Washington | 41 14 30 N | 091 37 51 W |
| Lake Red Rock | Reservoir | 219 | Marion | 41 26 26 N | 093 11 43 W |
| Lake Ridge Mobile Home Park | Populated Place | 197 | Johnson | 41 36 26 N | 091 32 36 W |
| Lake Robbins Ballroom | Building | 273 | Dallas | 41 49 15 N | 093 57 46 W |
| Lake Shawtee Wildlife Management Area | Park | 322 | Fremont | 40 51 00 N | 095 30 31 W |
| Lake Side Church | Church | 384 | Cerro Gordo | 43 03 60 N | 093 25 07 W |
| Lake Smith | Lake | 355 | Kossuth | 43 07 31 N | 094 14 19 W |
| Lake Smith Dam | Dam | 356 | Kossuth | 43 07 16 N | 094 14 16 W |
| Lake Smith Park | Park | 355 | Kossuth | 43 07 22 N | 094 14 28 W |
| Lake Sundown | Reservoir | 247 | Appanoose | 40 49 55 N | 092 43 09 W |
| Lake Sundown | Reservoir | 267 | Davis | 40 50 12 N | 092 43 01 W |
| Lake Sundown Dam | Dam | 267 | Davis | 40 50 12 N | 092 43 01 W |
| Lake View | Populated Place | 382 | Sac | 42 18 42 N | 095 03 12 W |
| Lake View (historical) | Locale | 382 | Sac | 42 18 23 N | 095 03 01 W |
| Lake View Cemetery | Cemetery | 450 | Dickinson | 43 25 26 N | 095 07 18 W |
| Lake View City Library | Building | 382 | Sac | 42 18 18 N | 095 03 07 W |
| Lake View Family Chiropractic Center | Hospital | 383 | Sac | 42 18 24 N | 095 03 12 W |
| Lake View Family Dentistry Center | Hospital | 383 | Sac | 42 18 24 N | 095 03 12 W |
| Lake View Fire Department | Building | 381 | Sac | 42 18 22 N | 095 03 07 W |
| Lake View Museum | Building | 383 | Sac | 42 18 24 N | 095 03 12 W |
| Lake View Police Department | Building | 381 | Sac | 42 18 22 N | 095 03 07 W |
| Lake View Post Office | Post Office | 383 | Sac | 42 18 24 N | 095 03 12 W |
| Lake View Post Office (historical) | Post Office | 406 | Palo Alto | 43 01 30 N | 094 52 11 W |
| Lake View Trail | Trail | 317 | Fayette | 42 51 55 N | 091 46 19 W |
| Lake Wahaboncey (historical) | Lake | 285 | Fremont | 40 54 04 N | 095 45 37 W |
| Lake Wahaboncey (historical) | Lake | 371 | Fremont | 40 53 58 N | 095 53 51 W |
| Lake Wapello | Reservoir | 241 | Davis | 40 49 17 N | 092 34 12 W |
| Lake Wapello Dam | Dam | 256 | Davis | 40 49 15 N | 092 33 14 W |
| Lake Wapello State Park | Park | 245 | Davis | 40 48 57 N | 092 35 19 W |
| Lake Wilderness | Lake | 209 | Lee | 40 47 20 N | 091 25 51 W |
| Lake Yenruogis | Lake | 226 | Keokuk | 41 22 43 N | 092 11 58 W |
| Lake Yenruogis County Park | Park | 236 | Keokuk | 41 22 42 N | 092 12 09 W |
| Lakehurst Dam | Dam | 203 | Jackson | 42 04 13 N | 090 41 51 W |
| Lakeland Memory Gardens Cemetery | Cemetery | 437 | Dickinson | 43 25 22 N | 095 07 60 W |
| Lakeland Square Mall | Locale | 435 | Dickinson | 43 20 08 N | 095 09 02 W |
| Lakeport Area | Park | 327 | Woodbury | 42 16 30 N | 096 16 11 W |
| Lakeport Post Office (historical) | Post Office | 325 | Woodbury | 42 15 15 N | 096 18 31 W |
| Laker High School | School | 401 | Emmet | 43 23 41 N | 094 49 01 W |
| Lakes Family Practice Center | Hospital | 444 | Dickinson | 43 25 04 N | 095 07 28 W |
| Lakeshore Country Club | Locale | 297 | Pottawattamie | 41 12 60 N | 095 50 51 W |
| Lakeshore Golf and Country Club | Locale | 373 | Union | 41 02 28 N | 094 12 31 W |
| Lakeside | Populated Place | 428 | Buena Vista | 42 37 17 N | 095 10 24 W |
| Lakeside (historical) | Locale | 429 | Buena Vista | 42 37 20 N | 095 10 19 W |
| Lakeside Acres Mobile Park | Populated Place | 374 | Cerro Gordo | 43 07 25 N | 093 23 04 W |
| Lakeside Beach | Beach | 427 | Buena Vista | 42 36 55 N | 095 10 47 W |
| Lakeside Golf Course | Locale | 308 | Greene | 42 03 30 N | 094 17 01 W |
| Lakeside Lutheran Home | Hospital | 376 | Palo Alto | 43 07 05 N | 094 40 58 W |
| Lakeside Manor Campground | Locale | 232 | Scott | 41 30 32 N | 090 40 51 W |
| Lakeside Municipal Golf Course | Locale | 311 | Webster | 42 32 10 N | 094 12 46 W |
| Lakeside Post Office (historical) | Post Office | 418 | Emmet | 43 29 40 N | 094 51 26 W |
| Lakeside Presbyterian Church | Church | 436 | Buena Vista | 42 38 26 N | 095 12 02 W |
| Lakeview | Populated Place | 381 | Sac | 42 18 25 N | 095 03 06 W |
| Lakeview Campground | Locale | 370 | Adams | 41 03 20 N | 094 44 01 W |
| Lakeview Country Club | Locale | 307 | Lucas | 41 00 54 N | 093 19 54 W |
| Lakeview Country Club | Locale | 333 | Madison | 41 22 05 N | 093 59 51 W |
| Lakeview Elementary School | School | 226 | Johnson | 41 48 27 N | 091 30 08 W |
| Lakeview Elementary School | School | 297 | Pottawattamie | 41 13 06 N | 095 51 06 W |
| Lakeview Family Practice Center | Hospital | 297 | Polk | 41 36 02 N | 093 47 25 W |
| Lakeview Golf Course | Locale | 310 | Fayette | 42 38 55 N | 091 55 16 W |
| Lakeview Middle Elementary School | School | 302 | Appanoose | 40 43 02 N | 092 52 34 W |
| Lakeview Mobile Home Court | Populated Place | 307 | Fayette | 42 38 40 N | 091 54 35 W |
| Lakeview Open Bible Church | Church | 443 | Dickinson | 43 25 06 N | 095 07 34 W |
| Lakeview Park | Park | 300 | Pottawattamie | 41 17 54 N | 095 51 48 W |
| Lakeview School | School | 297 | Pottawattamie | 41 13 05 N | 095 51 06 W |
| Lakeville Post Office (historical) | Post Office | 453 | Dickinson | 43 20 55 N | 095 14 28 W |
| Lakewood | Populated Place | 278 | Warren | 41 30 06 N | 093 40 27 W |
| Lakewood (historical) | Locale | 401 | Lyon | 43 20 50 N | 096 09 46 W |
| Lakewood (historical) | Populated Place | 401 | Lyon | 43 20 50 N | 096 09 46 W |
| Lakewood Corner | Populated Place | 396 | Lyon | 43 20 46 N | 096 10 34 W |
| Lakewood Corners Wildlife Area | Park | 396 | Lyon | 43 21 05 N | 096 10 26 W |
| Lakewood Elementary School | School | 288 | Warren | 41 29 55 N | 093 41 06 W |
| Lakewood Park | Populated Place | 226 | Scott | 41 34 45 N | 090 40 36 W |
| Lakewood Point | Cape | 372 | Sac | 42 17 57 N | 095 01 42 W |
| Lakewood Post Office (historical) | Post Office | 401 | Lyon | 43 20 50 N | 096 09 46 W |
| Lakin Slough State Game Management Area | Park | 321 | Guthrie | 41 47 01 N | 094 19 28 W |
| Lakin's Grove Post Office (historical) | Post Office | 335 | Hamilton | 42 19 60 N | 093 36 01 W |
| Lakonta | Populated Place | 221 | Mahaska | 41 11 36 N | 092 43 50 W |
| Lakonta (historical) | Locale | 224 | Mahaska | 41 11 36 N | 092 43 51 W |
| Lakota | Locale | 351 | Kossuth | 43 22 47 N | 094 05 36 W |
| Lakota | Populated Place | 348 | Kossuth | 43 22 38 N | 094 05 38 W |
| Lakota City Hall | Building | 348 | Kossuth | 43 22 38 N | 094 05 38 W |
| Lakota Post Office | Post Office | 348 | Kossuth | 43 22 38 N | 094 05 38 W |
| Lakota Public Library | Building | 348 | Kossuth | 43 22 38 N | 094 05 38 W |
| Lamalees Creek | Stream | | Lee | 40 27 47 N | 091 23 03 W |
| Lamb of God Lutheran Mission | Church | 215 | Scott | 41 34 12 N | 090 34 59 W |
| Lamb of God Lutheran Mission | Church | 216 | Scott | 41 41 41 N | 090 40 32 W |
| Lambert Cemetery | Cemetery | 284 | Fremont | 40 44 55 N | 095 51 11 W |
| Lambert Fechter Municipal Airport | Airport | 441 | O'Brien | 43 09 45 N | 095 28 01 W |
| Lambert School | School | 288 | Delaware | 42 29 38 N | 091 27 02 W |
| Lambirth Cemetery | Cemetery | 216 | Henry | 40 55 23 N | 091 42 55 W |
| Lamborn Hollow | Valley | | Jackson | 42 08 33 N | 090 20 55 W |
| Lambs Grove | Populated Place | 280 | Jasper | 41 42 11 N | 093 04 46 W |
| Lamkin Creek | Stream | | O'Brien | 43 08 37 N | 095 49 23 W |
| Lammers Museum | Building | 377 | Palo Alto | 43 14 33 N | 094 44 31 W |
| Lamoille | Locale | 295 | Marshall | 42 01 50 N | 093 02 19 W |
| LaMoille | Populated Place | 295 | Marshall | 42 01 50 N | 093 02 19 W |
| LaMoille Cemetery | Cemetery | 313 | Marshall | 42 01 10 N | 093 02 22 W |