Place
- Buzzards Bay (Mass. : Bay)18
- Northern Mariana Islands18
- Penobscot Bay (Me.)18
- Casco Bay (Me.)16
- Nantucket Sound (Mass.)16
- Vineyard Sound (Mass.)16
- Saskatchewan, Canada15
- Northeastern States14
- Arizona13
- Delaware13
- Nevada13
- Virginia13
- Wyoming13
- Florida12
- Idaho12
- Iowa12
- Maryland12
- Mendocino County (Calif.)12
- Minnesota12
- Montana12