L
- Lago
- Lake Point
- Lake Shore
- Lakeside
- Lakeside Acres
- Laketown
- Lakeview
- Lakeview Mobile Home Park
- Lakeview Terrace Condominium
- Lakota
- Lampo Junction
- Lapoint
- Lark
- La Sal
- La Sal Junction
- Latimer
- Latuda
- La Verkin
- Lawrence
- Layton
- Leamington
- Leeds
- Leeton
- Lehi
- Leland
- Leota
- Levan
- Lewiston
- Liberty
- Liberty Meadows
- Lincoln
- Lindon
- Little Bonanza
- Little Cottonwood Creek Valley
- Little Emma
- Little Mountain
- Littleton
- Little Water
- Loa
- Lockerby
- Lofgreen
- Logan
- Lone Tree Crossing
- Long Valley Junction
- Lost Acres
- Low
- Lower Kimberly
- Lucin
- Lund
- Lyman
- Lynn
- Lynndyl