- Rego
- Rehoboth
- Reiffsburg
- Renner
- Reno
- Reo
- Retreat
- Rexville
- Rhodes
- Ribeyre Island
- Riceville
- Richey Park
- Richland
- Richland Center
- Richland City
- Richvalley
- Riddle
- Ridertown
- Ridge Road Mobile Home Community
- Ridgemede
- Ridgeport
- Ridgeview
- Ridgeway
- Ridgewood
- Ridgleville
- Rigdon
- Riley
- Riley Village
- Rileysburg
- Rincon