- Pittsburgh, Allegheny County, Pennsylvania, United States2
- Portland (Me.)2
- Portland (Or.)2
- Princeton, New Jersey, United States2
- Prospect Hill2
- Providence (R.I.)2
- Richland County, South Carolina, United States2
- River Rhine2
- Rock Hill, South Carolina2
- Rome (Italy)2
- Sacramento (Calif.)2
- Saint Augustine (Fla.)2
- Saint Louis (Mo.)2
- Saint-Nazaire (France)2
- Salem2
- Santee, Orangeburg County, South Carolina, United States2
- Saranac Lake (N.Y.)2
- Sarasota (Fla.)2
- Saratoga (N.C.)2
- Saratoga (N.Y.)2