Place
- West Virginia7
- Wisconsin7
- Alaska6
- Antarctica6
- Blue Hill Bay (Me.)6
- Ipswich Bay (Mass.)6
- Machias Bay (Me.)6
- Narragansett Bay (R.I.)6
- Saco Bay (Me.)6
- Santa Barbara County (Calif.)6
- Santa Clara County (Calif.)6
- Tennessee6
- American Samoa5
- Guam5
- Monterey County (Calif.)5
- North America5
- Solano County (Calif.)5
- Australia4
- Brazil4
- Canada4