- La Grande
- La Pine
- Labish Center
- Labish Village
- Lacomb
- Ladd Hill
- Lafayette
- Lake Creek
- Lake of the Woods
- Lake Oswego
- Lakebrook
- Lakecreek
- Lakeside
- Lakeview
- Lakewood
- Lancaster
- Langell Valley
- Langlois
- Large Brown Rock
- Larson Island
- Latham
- Latourell
- Laurel
- Laurel Grove
- Laurelwood
- Lawen
- Lazarus Island
- Leaburg
- Leaning Rock
- Lebanon