- Riverside Trailer Court
- Race Track
- Racetrack
- Radersburg
- Radnor
- Railroad Summer Home Area
- Rainbow
- Rainbows End Mobile Home Park
- Ramsay
- Randalls Island
- Rankin Place
- Rapelje
- Rattlesnake
- Ravalli
- Ravenna
- Raymond
- Raynesford
- Red Bluff
- Red Lodge
- Red Rock
- Red Rock Point
- Red Top
- Redstone
- Reed Point
- Reed Trailer Court
- Reeder Place
- Reichle
- Reistad Trailer Court
- Renova
- Reserve