| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Серифос | city | Notio Aigaio | Greece | 37.15 | 24.50 | 104 | 965 |
| Серіфос | city | Notio Aigaio | Greece | 37.15 | 24.50 | 104 | 965 |
| Сими | city | Notio Aigaio | Greece | 36.61 | 27.84 | 308 | 3900 |
| Сирос | city | Notio Aigaio | Greece | 37.45 | 24.93 | 62 | 16062 |