- Rivercrest Estates
- Riverdale
- Riverforest Trailer Park
- Riverside
- Riverside
- Riverton
- Roberts
- Robertson
- Robins
- Robinson
- Robinson Crusoe Island
- Robison-Whitaker Acres
- Rochester
- Rock Creek
- Rock Falls
- Rock Rapids
- Rock Valley
- Rockdale
- Rockford
- Rocklyn Mobile Home
- Rockton
- Rockville
- Rockwell
- Rockwell City
- Rodman
- Rodney
- Roelyn
- Rogers
- Rogersville
- Roland