| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Casonul Mic | city | Covasna | Romania | 46.07 | 26.13 | 2509 | 3476 |
| Catalina | city | Covasna | Romania | 45.97 | 26.15 | 1797 | 19584 |
| Caşinu Mic | city | Covasna | Romania | 46.07 | 26.13 | 2509 | 3476 |
| Cernat | city | Covasna | Romania | 45.95 | 26.03 | 1817 | 3264 |
| Cernatu de Jos | city | Covasna | Romania | 45.95 | 26.03 | 1817 | 3264 |
| Cernatu de Sus | city | Covasna | Romania | 45.97 | 26.02 | 1893 | 2906 |
| Cernatul-de-Jos | city | Covasna | Romania | 45.95 | 26.03 | 1817 | 3264 |
| Cernatul-de-Sus | city | Covasna | Romania | 45.97 | 26.02 | 1893 | 2906 |
| Chesnoiu | city | Covasna | Romania | 45.83 | 25.88 | 1683 | 12961 |
| Chesnoiul | city | Covasna | Romania | 45.83 | 25.88 | 1683 | 12961 |
| Chezdi Matanus | city | Covasna | Romania | 46.02 | 26.28 | 2509 | 6012 |
| Chichirau | city | Covasna | Romania | 45.65 | 26.07 | 2509 | 7916 |
| Chichis-Bastelec | city | Covasna | Romania | 45.77 | 25.82 | 1669 | 17189 |
| Chichiş | city | Covasna | Romania | 45.78 | 25.80 | 1669 | 21225 |
| Chilieni | city | Covasna | Romania | 45.83 | 25.80 | 1719 | 48597 |
| Chiurus | city | Covasna | Romania | 45.82 | 26.15 | 2027 | 7380 |
| Ciangai | city | Covasna | Romania | 46.10 | 26.22 | 2063 | 1820 |
| Ciumernic | city | Covasna | Romania | 45.65 | 26.08 | 2509 | 6687 |
| Colonia Bercuţa | city | Covasna | Romania | 45.82 | 26.22 | 3398 | 6158 |
| Colonia Borcut | city | Covasna | Romania | 45.82 | 26.22 | 3398 | 6158 |
| Colonia Bulgară | city | Covasna | Romania | 45.85 | 26.17 | 1922 | 6294 |
| Colonia Covasna | city | Covasna | Romania | 45.85 | 26.17 | 1922 | 6294 |
| Colonia Ferastrau din Vale | city | Covasna | Romania | 45.82 | 26.25 | 3635 | 4799 |
| Comalau | city | Covasna | Romania | 45.85 | 25.90 | 1761 | 3879 |
| Comalaul | city | Covasna | Romania | 45.85 | 25.90 | 1761 | 3879 |
| Comanda | city | Covasna | Romania | 45.77 | 26.27 | 3349 | 4192 |
| Comando | city | Covasna | Romania | 45.77 | 26.27 | 3349 | 4192 |
| Comandău | city | Covasna | Romania | 45.77 | 26.27 | 3349 | 4192 |
| Comolau | city | Covasna | Romania | 45.85 | 25.90 | 1761 | 3879 |
| Corlata | city | Covasna | Romania | 45.83 | 25.60 | 1669 | 7410 |
| Coseni | city | Covasna | Romania | 45.82 | 25.80 | 1689 | 46377 |
| Covasna | city | Covasna | Romania | 45.85 | 26.18 | 2509 | 6351 |
| Crasna | city | Covasna | Romania | 45.58 | 26.13 | 2509 | 3169 |
| Cremenea | city | Covasna | Romania | 45.65 | 26.07 | 2509 | 7916 |
| Crivina Mare | city | Covasna | Romania | 45.67 | 26.03 | 2565 | 11171 |
| Crivina Mica | city | Covasna | Romania | 45.67 | 26.03 | 2565 | 11171 |
| Csernáton | city | Covasna | Romania | 45.95 | 26.03 | 1817 | 3264 |
| Csomakőrös | city | Covasna | Romania | 45.82 | 26.15 | 2027 | 7380 |
| Csomortan | city | Covasna | Romania | 46.08 | 26.23 | 2509 | 1999 |
| Csàngòtelep | city | Covasna | Romania | 46.10 | 26.22 | 2063 | 1820 |
| Câlnic | city | Covasna | Romania | 45.93 | 25.78 | 1965 | 3557 |
| Cîlnic | city | Covasna | Romania | 45.93 | 25.78 | 1965 | 3557 |
| Cófalva | city | Covasna | Romania | 45.83 | 26.02 | 1735 | 3900 |
| Cărpinenii | city | Covasna | Romania | 46.10 | 26.22 | 2063 | 1820 |