- Ragged Island
- Ravenwood
- Rawley Island
- Reeves Crossing
- Rehak
- Reynard Crossing
- Richardson Estates
- Ridgewood Manor
- Rising Sun
- Rising Sun-Lebanon
- Rising Sun Mobile Home Park
- Riverdale Estates Mobile Home Park
- Rockland Hills
- Rockland West
- Rodric Village
- Roesville
- Rolling Meadows
- Royal Grant
- Ryans Run
- Radnor Green
- Raintree Village
- Ramble Woods
- Rambleton Acres
- Red Lion
- Reedy Island
- Reybold
- Richardson Park
- Ridgewood
- Riveredge Park
- Rivers End