Idaho Cities
- Labelle, ID
- Laclede, ID
- Lago, ID
- Lake, ID
- Lake Fork, ID
- Lakeview, ID
- Lamb Creek, ID
- Lamont, ID
- Lanark, ID
- Landmark, ID
- Landore, ID
- Lane, ID
- Lapwai, ID
- Larson, ID
- Last Chance, ID
- Lava Hot Springs, ID
- Lawman Ford, ID
- Leadore, ID
- Leadville, ID
- Leesburg, ID
- Leland, ID
- Lemhi, ID
- Lenore, ID
- Leon, ID
- Leone, ID
- Leonia, ID
- Leslie, ID
- Letha, ID
- Lewiston, ID
- Lewisville, ID
- Liberty, ID
- Lidy Hot Springs, ID
- Lifton, ID
- Lincoln, ID
- Linden, ID
- Linfor, ID
- Little Rock, ID
- Little Sugar Loaf, ID
- Lone Pine, ID
- Lone Rock, ID
- Lorenzo, ID
- Lost River, ID
- Lotus, ID
- Lowell, ID
- Lower Stanley, ID
- Lowman, ID
- Lucile, ID
- Lund, ID
- Lyman, ID
