South Dakota Cities
- La Bolt, SD
- La Plant, SD
- Labolt, SD
- Lacy, SD
- LaDelle, SD
- Ladner, SD
- Lake Andes, SD
- Lake City, SD
- Lake Madison, SD
- Lake Norden, SD
- Lake Poinsett, SD
- Lake Preston, SD
- Lakeview, SD
- Lakeview Colony, SD
- Lane, SD
- Langford, SD
- Lantry, SD
- Lead, SD
- Lebanon, SD
- Lemmon, SD
- Lennox, SD
- Leola, SD
- Lesterville, SD
- Letcher, SD
- Lily, SD
- Linden Beach, SD
- Little Eagle, SD
- Littleburg, SD
- Lodgepole, SD
- Lodi, SD
- Lone Tree, SD
- Long Hollow, SD
- Long Lake, SD
- Long Lake Colony, SD
- Long Valley, SD
- Loomis, SD
- Lower Brule, SD
- Lowry, SD
- Loyalton, SD
- Lucas, SD
- Lucerne, SD
- Ludlow, SD
- Lyman, SD
- Lyons, SD
- Lyonville, SD
