| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Colimbi | city | Nomos )) (( Piraios | Greece | 36.25 | 28.1666667 | 3 | 1721 |
| Coo | city | Nomos Dodekanisou | Greece | 36.8933333 | 27.2888889 | 157 | 3940 |
| Corcyra | city | Nomos Kerkyras | Greece | 39.62 | 19.9197222 | 3 | 4437 |
| Corfu | city | Nomos Kerkyras | Greece | 39.62 | 19.9197222 | 3 | 4437 |
| Corinth | city | Nomos Korinthias | Greece | 37.9377778 | 22.9322222 | 180 | 4974 |
| Corio | city | Nomos )) (( Piraios | Greece | 36.9666667 | 26.9666667 | 272 | 5068 |
| Corio | city | Nomos )) (( Piraios | Greece | 36.2166667 | 27.6 | 0 | 1442 |
| Costellos | city | Nomos )) (( Piraios | Greece | 36.2333333 | 27.85 | 1456 | 7291 |
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