Place
- Oklahoma3
- Puerto Rico3
- Rhode Island Sound (Mass. and R.I.)3
- Tomales Bay (Calif.)3
- Utah3
- Washington (State)3
- Illinois2
- Kentucky2
- Mississippi2
- Missouri2
- New Mexico2
- North Carolina2
- San Francisco (Calif.)2
- South Carolina2
- Texas2
- United States Virgin Islands2
- West Virginia2
- Wisconsin2
- American Samoa1
- Block Island Sound (R.I.)1