- Ross
- Ross Mobile Home Park
- Rossburg
- Rosston
- Rosstown
- Roth Park
- Round Grove
- Round Island
- Round Up
- Roxbury Pines
- Royal Oaks
- Royalton
- Royerton
- Royville
- Rugby
- Rumble
- Runnymede
- Runyantown
- Rural
- Rush Creek Valley
- Rusk
- Russell Lake
- Russels Point
- Rustic Hills
- Rutland
- Redkey
- Roachdale
- Roann
- Rocky Ripple
- Rome City