- La Center
- La Conner
- La Grande
- Lake Bosworth
- Lake Cavanaugh
- Lake Forest Park
- Lake Ketchum
- Lake Marcel-Stillwater
- Lake McMurray
- Lake Morton-Berrydale
- Lake Roesiger
- Lake Shore
- Lake Stevens
- Lake Stickney
- Lakeland North
- Lakeland South
- Lakeview
- Lakeview
- Lamont
- Langley
- Larch Way
- Latah
- Laurier
- Lea Hill
- Lebam
- Lewisville
- Liberty Lake
- Lind
- Lochsloy
- Lofall
- Longbranch
- Longview
- Longview Heights
- Loomis
- Loon Lake
- Lyle
- Lyman
- Lynden