- Kentucky River, Frankfort,Kentucky, United States1
- Kershaw County (S.C.)1
- Key Biscayne, Dade County, Florida, United States1
- Key West, Monroe County, Florida1
- Key West, Monroe County, Florida, United States21
- La Rochelle, Charente-Maritime department, France1
- Lake Champlain1
- Lake George, Florida, United States1
- Lake Saratoga, Saratoga County, New York, United States1
- Lamlash Bay, North Ayrshire, Scotland, United Kingdom1
- Laurens County (S.C.)2
- Liberia1
- Louisiana, United States4
- Macon County, Wilcox County, Alabama, United States1
- Madagascar2
- Malacca, Malaysia1
- Manila, Philippines2
- Manilla, Philippines1
- Marlboro County (S.C.)2
- Martinique3