Notering byer (16 sted (er)). Velg byen for å se postnummeret (s):
| Robins (1) Rock Falls (1) Rock Rapids (1) Rock Valley (1) Rockford (1) Rockwell (1) Rockwell City (1) Rodman (1) | Rodney (1) Roland (1) Rolfe (1) Rome (1) Rose Hill (1) Rowan (1) Rowley (1) Royal (1) |
