The canton Trélissac has 8 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 24557 | Trélissac | 7 372 |
| 24098 | Champcevinel | 3 126 |
| 24115 | Château-l'Évêque | 2 158 |
| 24002 | Agonac | 1 765 |
| 24011 | Antonne-et-Trigonant | 1 185 |
| 24521 | Sarliac-sur-l'Isle | 1 054 |
| 24135 | Cornille | 687 |
| 24162 | Escoire | 401 |