| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Rio Cacho | city | Oaxaca | Mexico | 16.68 | -97.18 | 7549 | 2252 |
| Rio Cajon | city | Oaxaca | Mexico | 15.98 | -96.23 | 2509 | 2476 |
| Rio Cana | city | Veracruz | Mexico | 18.71 | -95.32 | 295 | 3739 |
| Rio Cantador | city | Guerrero | Mexico | 17.02 | -98.38 | 2509 | 4766 |
| Rio Cantador Chiquito | city | Guerrero | Mexico | 17.02 | -98.38 | 2509 | 4766 |
| Rio Capote | city | Oaxaca | Mexico | 16.65 | -97.10 | 5905 | 672 |
| Rio Carrizo | city | Oaxaca | Mexico | 16.05 | -96.67 | 1735 | 4636 |
| Rio Chico | city | Chihuahua | Mexico | 29.61 | -108.17 | 6824 | 298 |
| Rio Chico | city | Sonora | Mexico | 28.33 | -109.51 | 830 | 216 |
| Rio Chico | city | Hidalgo | Mexico | 19.74 | -98.19 | 8451 | 4090 |
| Rio Chico | city | Jalisco | Mexico | 21.64 | -102.36 | 5912 | 24013 |
| Rio Chiquito | city | Oaxaca | Mexico | 17.62 | -95.94 | 328 | 2898 |
| Rio Chiquito | city | Guerrero | Mexico | 17.36 | -100.85 | 830 | 1900 |
| Rio Ciego | city | Guanajuato | Mexico | 21.53 | -100.80 | 6804 | 3590 |
| Rio Clarin | city | Veracruz | Mexico | 20.34 | -97.29 | 164 | 16847 |
| Rio Claro | city | Hidalgo | Mexico | 21.22 | -98.76 | 393 | 13536 |
| Rio Coatzacoalcos | city | Veracruz | Mexico | 18.02 | -94.47 | 3 | 45319 |
| Rio Colorado | city | Sonora | Mexico | 32.07 | -114.78 | 68 | 1043 |
| Rio Colorado | city | Michoacan de Ocampo | Mexico | 19.37 | -100.73 | 5029 | 4107 |
| Rio Colorado | city | Guanajuato | Mexico | 21.57 | -100.18 | 3582 | 1848 |
| Rio Colorado | city | Chiapas | Mexico | 16.80 | -91.34 | 2552 | 1349 |
| Rio Colorado | city | Durango | Mexico | 25.87 | -106.23 | 8412 | 298 |
| Rio Comal | city | Oaxaca | Mexico | 16.23 | -96.63 | 6233 | 3172 |
| Rio Copalita la Hamaca | city | Oaxaca | Mexico | 15.89 | -96.19 | 1148 | 4259 |
| Rio Corosal | city | Chiapas | Mexico | 16.49 | -91.59 | 971 | 2276 |
| Rio Cruz de Piedra | city | Oaxaca | Mexico | 16.35 | -97.42 | 5029 | 5231 |
| Rio Culebra | city | Oaxaca | Mexico | 15.98 | -96.35 | 3349 | 3031 |