- Rhode Island, United States6
- Richmond, Berkshire County, Massachusetts, United States1
- Richmond, Virginia, United States1
- Riddarhyttan, Vastmanland, Sweden1
- Riechelsdorf, Hessen, Germany2
- Rogers Rock, Lake George, Hague, Warren County, New York, United States1
- Rossie, Saint Lawrence County, New York, United States3
- Rossie, St. Lawrence County, New York, United States1
- Roughton Gill Mine, Cumberland, Cumbria, England, United Kingdom3
- Saint Thomas, U. S. Virgin Islands, United States1
- San Miguel Island, Azores, Portugal1
- Savodinski Mine, Russia, Siberia1
- Saxony, Germany4
- Schaffhausen, Bavaria, Germany1
- Schneeburg, Saxony, Germany1
- Schoharie, Schoharie County, New York, United States4
- Schooley's Mountain, Morris County, New Jersey, United States1
- Schuykill River, Pennsylvania, United States1
- Schuylkill River, Philadelphia, Philadelphia County, Pennsylvania, United States2
- Scotch Plains, Union County, New Jersey2