| Riegelsville, PA (Borough) |
| Rienzi, MS (Town) |
| Riesel, TX (City) |
| Rietbrock Town, WI (Town) |
| Rifle, CO (City) |
| Rifle, ND (Township) |
| Riga, ND (Township) |
| Riga, NY (Town) |
| Riga Township, MI (Township) |
| Rigby, ID (City) |
| Riggin, ND (Township) |
| Riggins, ID (City) |
| Riley, IN (Town) |
| Riley, KS (City) |
| Riley, IN (Township) |
