| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| C. Choel | city | Rio Negro | Argentina | -39.27 | -65.68 | 390 | 6896 |
| Cabestro Quemado | city | Rio Negro | Argentina | -40.64 | -69.71 | 4189 | 0 |
| Cabeza de Vaca | city | Rio Negro | Argentina | -40.42 | -67.10 | 1669 | 0 |
| Cacique Catriel | city | Rio Negro | Argentina | -37.88 | -67.80 | 1053 | 13281 |
| Caitaco | city | Rio Negro | Argentina | -39.55 | -67.28 | 830 | 0 |
| Caltrauna | city | Rio Negro | Argentina | -41.17 | -68.17 | 3349 | 0 |
| Catriel | city | Rio Negro | Argentina | -37.88 | -67.80 | 1053 | 13281 |
| Cayuqueo | city | Rio Negro | Argentina | -41.60 | -66.45 | 2509 | 0 |
| Cañadón de la Mosca | city | Rio Negro | Argentina | -41.58 | -71.57 | 1975 | 498 |
| Cerro Abanico | city | Rio Negro | Argentina | -40.97 | -68.30 | 2900 | 0 |
| Cerro Mesa | city | Rio Negro | Argentina | -41.70 | -70.47 | 3749 | 742 |
| Cerro Policia | city | Rio Negro | Argentina | -39.73 | -68.52 | 2896 | 263 |
| Cerro de Policía | city | Rio Negro | Argentina | -39.73 | -68.52 | 2896 | 263 |
| Cervantes | city | Rio Negro | Argentina | -39.05 | -67.38 | 830 | 7448 |
| Chacay Huarruca | city | Rio Negro | Argentina | -41.67 | -70.73 | 4189 | 0 |
| Chasicó | city | Rio Negro | Argentina | -40.30 | -68.97 | 3677 | 0 |
| Chelforó | city | Rio Negro | Argentina | -39.09 | -66.52 | 830 | 531 |
| Cheneral Roka | city | Rio Negro | Argentina | -39.03 | -67.58 | 830 | 17745 |
| Chichiguau | city | Rio Negro | Argentina | -41.90 | -68.82 | 4189 | 0 |
| Chichinales | city | Rio Negro | Argentina | -39.12 | -66.93 | 830 | 2686 |
| Chilpe Rincón | city | Rio Negro | Argentina | -40.40 | -70.09 | 1906 | 0 |
| Chimpay | city | Rio Negro | Argentina | -39.16 | -66.14 | 830 | 3752 |
| Chinchinales | city | Rio Negro | Argentina | -39.12 | -66.93 | 830 | 2686 |
| Choele Choel | city | Rio Negro | Argentina | -39.27 | -65.68 | 390 | 6896 |
| Cinco Chañares | city | Rio Negro | Argentina | -40.72 | -65.23 | 114 | 0 |
| Cinco Saltos | city | Rio Negro | Argentina | -38.82 | -68.06 | 885 | 19355 |
| Cipoletti | city | Rio Negro | Argentina | -38.93 | -67.99 | 830 | 19409 |
| Cipolleti | city | Rio Negro | Argentina | -38.93 | -67.99 | 830 | 19409 |
| Cipolletti | city | Rio Negro | Argentina | -38.93 | -67.99 | 830 | 19409 |
| Ciudad de General Roca | city | Rio Negro | Argentina | -39.03 | -67.58 | 830 | 17745 |
| Clemente Onelli | city | Rio Negro | Argentina | -41.24 | -70.04 | 4189 | 557 |
| Coitaco | city | Rio Negro | Argentina | -39.55 | -67.28 | 830 | 0 |
| Coli-Toro | city | Rio Negro | Argentina | -40.70 | -69.22 | 3349 | 0 |
| Colonia J. y Echarren | city | Rio Negro | Argentina | -39.04 | -64.03 | 213 | 7621 |
| Colonia Josefa | city | Rio Negro | Argentina | -39.73 | -65.42 | 311 | 0 |
| Colonia Julia y Echarren | city | Rio Negro | Argentina | -39.04 | -64.03 | 213 | 7621 |
| Colonia Teniente General Frias | city | Rio Negro | Argentina | -40.20 | -64.20 | 157 | 0 |
| Comallo | city | Rio Negro | Argentina | -41.03 | -70.27 | 2828 | 882 |
| Cona Niyeo | city | Rio Negro | Argentina | -41.86 | -66.94 | 1843 | 106 |
| Cona Niyeu | city | Rio Negro | Argentina | -41.86 | -66.94 | 1843 | 106 |
| Conesa | city | Rio Negro | Argentina | -40.10 | -64.43 | 200 | 5291 |
| Contraalmirante Cordero | city | Rio Negro | Argentina | -38.72 | -68.15 | 951 | 23276 |
| Contraalmirante Martin Guerrico | city | Rio Negro | Argentina | -39.02 | -67.73 | 830 | 3435 |
| Contralmirante Cordero | city | Rio Negro | Argentina | -38.72 | -68.15 | 951 | 23276 |
| Contralmirante Martin Guerrico | city | Rio Negro | Argentina | -39.02 | -67.73 | 830 | 3435 |
| Coquelén | city | Rio Negro | Argentina | -40.76 | -70.45 | 3349 | 0 |
| Coronel Belisle | city | Rio Negro | Argentina | -39.18 | -65.98 | 830 | 2970 |
| Coronel Eugenio del Busto | city | Rio Negro | Argentina | -38.95 | -64.25 | 298 | 0 |
| Coronel Gómez | city | Rio Negro | Argentina | -39.02 | -67.64 | 830 | 11596 |
| Coronel J. F. Gómez | city | Rio Negro | Argentina | -39.02 | -67.64 | 830 | 11596 |
| Coronel J. J. Gomez | city | Rio Negro | Argentina | -39.02 | -67.64 | 830 | 11596 |
| Coronel Juan J. Gomez | city | Rio Negro | Argentina | -39.02 | -67.64 | 830 | 11596 |
| Coronel Juan Jose Gomez | city | Rio Negro | Argentina | -39.02 | -67.64 | 830 | 11596 |
| Coronel Pringles | city | Rio Negro | Argentina | -40.43 | -63.68 | 65 | 472 |
| Corral Choique | city | Rio Negro | Argentina | -41.87 | -68.35 | 4271 | 0 |
| Cubanea | city | Rio Negro | Argentina | -40.67 | -63.50 | 55 | 149 |
| Curacó | city | Rio Negro | Argentina | -39.45 | -67.70 | 1230 | 0 |
| Currumil | city | Rio Negro | Argentina | -39.78 | -67.97 | 1719 | 0 |