- Lime Springs
- Lawn Hill
- Lakewood
- Lawrenceburg
- Linn Grove
- Liscomb
- Little Sioux
- Lockridge
- Lone Tree
- Lexington
- Lorimor
- Lost Nation
- Lovilia
- Lowden
- Lu Verne
- Lena
- Lundgren
- Leeds
- Lowell
- Lansrud
- Lidtke Mill
- Locust
- Lainsville
- Little Soup Bone Island
- Lake Ridge Mobile Home Park
- Lanscaster
- Lotts Creek
- La Crew
- Lead Island
- Lafayette