- Raynham
- Red Point Rocks
- Richards Corner
- Rivercliff
- Riverside
- Riverview Mobile Home Estates
- Robert Hutt Congregate Housing
- Rockland
- Rogers Island
- Round Rock
- Russian Village
- Rawson
- Roseland Park
- Ram Island
- Rapid Rock
- Rat Island
- Ridgewood
- Rock Island
- Redding
- Redding Ridge
- Riverside
- Riverton
- Rockfall
- Rocky Hill
- Rogers
- Roxbury
- Ridgefield
- Rockville