- Salt River, Mississippi Drainage, Missouri, United States1
- San Francisco Bay, California, United States1
- San Joaquin Valley, California, United States3
- San Luis Obispo, San Luis Obispo County, California, United States1
- Sandy Hook, Monmouth County, New Jersey, United States1
- Santee Canal, Berkeley County, South Carolina, United States1
- Scarborough, North Yorkshire, England, United Kingdom26
- Senegal2
- Senegal, Africa1
- Sicily, Italy2
- Sicily, Sicily, Italy1
- Silver Springs, Marion County, Florida, United States2
- South America1
- South Carolina1
- South Carolina, United States43
- South Carolina/Bay Point 1
- Southern Seas1
- Sri Lanka1
- St. Johns River, Florida, United States1
- Stapleton, Jefferson County, Georgia, United States1