| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Radium Hill | city | State of South Australia | Australia | -32.3 | 140.6666667 | 623 | 0 |
| Ramco | city | State of South Australia | Australia | -34.1666667 | 139.9333333 | 55 | 196 |
| Rapid Bay | city | State of South Australia | Australia | -35.5333333 | 138.2 | 534 | 273 |
| Red Banks | city | State of South Australia | Australia | -34.4833333 | 138.5666667 | 183 | 922 |
| Red Creek | city | State of South Australia | Australia | -35.1666667 | 138.9666667 | 360 | 928 |
| Redhill | city | State of South Australia | Australia | -33.5333333 | 138.2333333 | 351 | 321 |
| Reedy Creek | city | State of South Australia | Australia | -36.95 | 140.0166667 | 52 | 84 |
| Reeve's Plain | city | State of South Australia | Australia | -34.5166667 | 138.6 | 173 | 945 |
| Reeves Plains | city | State of South Australia | Australia | -34.5166667 | 138.6 | 173 | 945 |
| Reeveʼs Plain | city | State of South Australia | Australia | -34.5166667 | 138.6 | 173 | 945 |
| Rendelsham | city | State of South Australia | Australia | -37.55 | 140.2166667 | 49 | 783 |
| Renmark | city | State of South Australia | Australia | -34.1833333 | 140.75 | 72 | 2009 |
| Renmark North | city | State of South Australia | Australia | -34.1333333 | 140.7166667 | 95 | 3879 |
| Renmark West | city | State of South Australia | Australia | -34.1666667 | 140.7 | 91 | 4661 |
| Reynella | city | State of South Australia | Australia | -35.1 | 138.5333333 | 482 | 72512 |
| Rhynie | city | State of South Australia | Australia | -34.1333333 | 138.7 | 1000 | 429 |
| River Glen | city | State of South Australia | Australia | -35.1666667 | 139.3 | 16 | 1188 |
| Riverton | city | State of South Australia | Australia | -34.1666667 | 138.75 | 977 | 440 |
| Robe | city | State of South Australia | Australia | -37.1833333 | 139.75 | 3 | 70 |
| Robertstown | city | State of South Australia | Australia | -34 | 139.0666667 | 1023 | 76 |
| Rochester | city | State of South Australia | Australia | -33.7 | 138.4833333 | 544 | 141 |
| Rockleigh | city | State of South Australia | Australia | -35 | 139.1166667 | 459 | 1131 |
| Roger Corner | city | State of South Australia | Australia | -34.9166667 | 137.55 | 137 | 411 |
| Rosedale | city | State of South Australia | Australia | -34.55 | 138.85 | 498 | 1319 |
| Roseneath | city | State of South Australia | Australia | -34.6166667 | 140.7166667 | 236 | 247 |
| Rosetown | city | State of South Australia | Australia | -36.8333333 | 139.85 | 3 | 47 |
| Roseworthy | city | State of South Australia | Australia | -34.5333333 | 138.7333333 | 321 | 1348 |
| Rowland Flat | city | State of South Australia | Australia | -34.5833333 | 138.9333333 | 967 | 3835 |
| Rudall | city | State of South Australia | Australia | -33.6833333 | 136.2666667 | 364 | 56 |
| Rupari | city | State of South Australia | Australia | -35.6333333 | 139.1333333 | 45 | 168 |
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