- Randolph
- Ravanna
- Ravenwood
- Raymondville
- Raymore
- Raytown
- Rayville
- Rea
- Redings Mill
- Reeds
- Reeds Spring
- Renick
- Rensselaer
- Republic
- Revere
- Rhineland
- Rich Hill
- Richards
- Richland
- Richmond
- Richmond Heights
- Ridgely
- Ridgeway
- Rington
- Risco
- Ritchey
- River Bend
- Rivermines
- Riverside
- Riverside
- Riverview
- Riverview
- Riverview Estates
- Rives
- Rocheport
- Rock Hill
- Rock Port
- Rockaway Beach
- Rockville
- Rogersville
- Rolla
- Roscoe
- Rosebud
- Rosendale
- Rothville
- Rush Hill
- Rushville
- Russellville
- Rutledge
