The canton Issoire has 10 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 63178 | Issoire | 15 115 |
| 63321 | Saint-Babel | 948 |
| 63160 | Aulhat-Flat | 944 |
| 63275 | Perrier | 925 |
| 63261 | Orbeil | 883 |
| 63051 | Brenat | 629 |
| 63054 | Le Broc | 623 |
| 63404 | Saint-Yvoine | 553 |
| 63222 | Meilhaud | 507 |
| 63268 | Pardines | 302 |