Place
- Guam9
- Northern Mariana Islands9
- Riverside County (Calif.)9
- Alaska8
- Latvia8
- Palo Alto (Calif.)8
- Rhode Island Sound (Mass. and R.I.)8
- Woodside (Calif.)8
- Buzzards Bay (Mass. : Bay)7
- Cuba7
- Delaware Bay (Del. and N.J.)7
- Vietnam7
- Azerbaijan6
- Boston Harbor (Mass.)6
- Hayward (Calif.)6
- New Zealand6
- Placer County (Calif.)6
- Sacramento County (Calif.)6
- Bangladesh5
- Block Island Sound (R.I.)5