| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Rabornville | city | Oklahoma | United States | 36.20528 | -96.32722 | 718 | 2821 |
| Raiford | city | Oklahoma | United States | 35.26778 | -95.78667 | 613 | 592 |
| Rainy historical | city | Oklahoma | United States | 35.14444 | -98.95417 | 1561 | 576 |
| Ralph | city | Oklahoma | United States | 35.50889 | -99.01167 | 1601 | 2895 |
| Ralston | city | Oklahoma | United States | 36.50389 | -96.73194 | 810 | 495 |
| Rambo | city | Oklahoma | United States | 36.26889 | -96.88917 | 1007 | 759 |
| Ramona | city | Oklahoma | United States | 36.53028 | -95.92333 | 675 | 1195 |
| Randlett | city | Oklahoma | United States | 34.17722 | -98.46333 | 1020 | 336 |
| Range | city | Oklahoma | United States | 36.54389 | -101.08278 | 2696 | 159 |
| Rankin | city | Oklahoma | United States | 35.62444 | -99.92417 | 2496 | 167 |
| Ratliff City | city | Oklahoma | United States | 34.44889 | -97.50917 | 997 | 852 |
| Rattan | city | Oklahoma | United States | 34.20028 | -95.41278 | 485 | 274 |
| Ravia | city | Oklahoma | United States | 34.24167 | -96.75111 | 711 | 630 |
| Rayford | city | Oklahoma | United States | 34.43444 | -97.09444 | 866 | 1122 |
| Reagan | city | Oklahoma | United States | 34.34889 | -96.72139 | 898 | 888 |
| Reams | city | Oklahoma | United States | 35.06556 | -95.69972 | 597 | 1309 |
| Red Bird | city | Oklahoma | United States | 35.88556 | -95.58861 | 597 | 3018 |
| Red Fork | city | Oklahoma | United States | 36.10583 | -96.02472 | 695 | 72277 |
| Red Hill | city | Oklahoma | United States | 35.34722 | -94.94028 | 597 | 1102 |
| Red Oak | city | Oklahoma | United States | 34.95083 | -95.08 | 597 | 439 |
| Red Rock | city | Oklahoma | United States | 36.45917 | -97.17861 | 898 | 452 |
| Redbird Smith | city | Oklahoma | United States | 35.56611 | -95.02028 | 797 | 1615 |
| Redden | city | Oklahoma | United States | 34.50639 | -95.84444 | 698 | 215 |
| Redland | city | Oklahoma | United States | 33.91 | -94.67361 | 396 | 1419 |
| Redland | city | Oklahoma | United States | 35.30472 | -94.62417 | 498 | 3210 |
| Reed | city | Oklahoma | United States | 34.90056 | -99.69528 | 1751 | 625 |
| Reeder Ford | city | Oklahoma | United States | 35.57889 | -94.51944 | 521 | 2216 |
| Reeding | city | Oklahoma | United States | 35.79083 | -97.76972 | 1099 | 619 |
| Regnier | city | Oklahoma | United States | 36.99389 | -102.85667 | 4307 | 29 |
| Reichert | city | Oklahoma | United States | 34.86917 | -94.75389 | 597 | 980 |
| Reichert | city | Oklahoma | United States | 34.86306 | -94.74778 | 597 | 988 |
| Remington | city | Oklahoma | United States | 36.64444 | -96.72083 | 892 | 598 |
| Remy | city | Oklahoma | United States | 35.45639 | -94.53389 | 698 | 2665 |
| Renfrow | city | Oklahoma | United States | 36.92556 | -97.65556 | 1197 | 216 |
| Rentiesville | city | Oklahoma | United States | 35.52139 | -95.49472 | 597 | 2348 |
| Retrop | city | Oklahoma | United States | 35.15972 | -99.35944 | 1794 | 381 |
| Rexroat | city | Oklahoma | United States | 34.21639 | -97.40444 | 859 | 1196 |
| Reydon | city | Oklahoma | United States | 35.65361 | -99.91861 | 2345 | 172 |
| Reynolds | city | Oklahoma | United States | 34.66528 | -95.93083 | 698 | 311 |
| Rhea | city | Oklahoma | United States | 35.84167 | -99.23444 | 1899 | 149 |
| Richardsville | city | Oklahoma | United States | 35.47833 | -95.68056 | 597 | 720 |
| Richland | city | Oklahoma | United States | 35.58 | -97.80444 | 1371 | 2465 |
| Richmond | city | Oklahoma | United States | 36.19083 | -99.05194 | 1774 | 273 |
| Richville | city | Oklahoma | United States | 34.93778 | -95.67417 | 626 | 5288 |
| Ridley | city | Oklahoma | United States | 34.70361 | -98.37778 | 1138 | 14653 |
| Rigsby | city | Oklahoma | United States | 36.20611 | -96.36194 | 780 | 2784 |
| Ringling | city | Oklahoma | United States | 34.17833 | -97.59222 | 862 | 788 |
| Ringold | city | Oklahoma | United States | 34.215 | -95.125 | 498 | 540 |
| Ringwood | city | Oklahoma | United States | 36.37944 | -98.245 | 1295 | 439 |
| Ripley | city | Oklahoma | United States | 36.01778 | -96.90528 | 875 | 2318 |
| Ritts Junction | city | Oklahoma | United States | 35.74111 | -96.51194 | 800 | 635 |
| Roberta | city | Oklahoma | United States | 33.92639 | -96.30222 | 649 | 2363 |
| Robinson Corner | city | Oklahoma | United States | 34.08528 | -96.60111 | 675 | 642 |
| Rock Creek | city | Oklahoma | United States | 34.84 | -96.12694 | 885 | 416 |
| Rock Island | city | Oklahoma | United States | 35.18222 | -94.47361 | 498 | 3357 |
| Rocky | city | Oklahoma | United States | 35.15694 | -99.06 | 1630 | 761 |
| Rocky Ford | city | Oklahoma | United States | 34.84528 | -98.07167 | 1184 | 1374 |
| Rocky Ford | city | Oklahoma | United States | 36.17583 | -94.91083 | 1099 | 1141 |
| Rocky Mountain | city | Oklahoma | United States | 35.80528 | -94.76722 | 1076 | 1124 |
| Rocky Point | city | Oklahoma | United States | 36.02833 | -95.32778 | 597 | 3871 |
| Roff | city | Oklahoma | United States | 34.6275 | -96.84056 | 1295 | 656 |
| Rogers | city | Oklahoma | United States | 36.91694 | -95.1975 | 843 | 384 |
| Roland | city | Oklahoma | United States | 35.42111 | -94.51444 | 547 | 2665 |
| Roll | city | Oklahoma | United States | 35.77917 | -99.71111 | 2309 | 173 |
| Romia | city | Oklahoma | United States | 33.83806 | -96.16972 | 488 | 387 |
| Romulus | city | Oklahoma | United States | 35.11639 | -96.92306 | 1013 | 1290 |
| Ron | city | Oklahoma | United States | 34.79222 | -99.85944 | 1866 | 280 |
| Roosevelt | city | Oklahoma | United States | 34.84861 | -99.02139 | 1469 | 267 |
| Rose | city | Oklahoma | United States | 36.21944 | -95.02944 | 944 | 1919 |
| Rosedale | city | Oklahoma | United States | 34.91833 | -97.18361 | 1062 | 1604 |
| Rosehill | city | Oklahoma | United States | 35.50861 | -99.71694 | 2349 | 153 |
| Rosston | city | Oklahoma | United States | 36.81333 | -99.93361 | 2158 | 210 |
| Rossville | city | Oklahoma | United States | 35.59389 | -96.99861 | 997 | 1472 |
| Row | city | Oklahoma | United States | 36.27861 | -94.69028 | 1177 | 1855 |
| Roxana | city | Oklahoma | United States | 36.10139 | -97.65694 | 958 | 653 |
| Rubottom | city | Oklahoma | United States | 33.94028 | -97.45667 | 839 | 399 |
| Rufe | city | Oklahoma | United States | 34.12361 | -95.14389 | 498 | 943 |
| Rush Springs | city | Oklahoma | United States | 34.7825 | -97.95667 | 1299 | 761 |
| Russell | city | Oklahoma | United States | 34.76806 | -99.66694 | 1538 | 401 |
| Russellville | city | Oklahoma | United States | 35.15167 | -95.435 | 702 | 740 |
| Russett | city | Oklahoma | United States | 34.19 | -96.80472 | 672 | 598 |
| Ruthdale | city | Oklahoma | United States | 36.815 | -95.73722 | 748 | 389 |
| Ryan | city | Oklahoma | United States | 34.02 | -97.95722 | 846 | 302 |
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