| Date | Type | Code | Name |
|---|---|---|---|
| 2017-01-01 | Creation of a new commune | 39018 | Aromas |
| 2017-01-01 | Creation of a new commune | 39018 | Aromas |
| 2017-01-01 | Deletion of a delegated commune | 39018 | Aromas |
| 2017-01-01 | Creation of a new commune | 39566 → 39018 | Villeneuve-lès-Charnod → Aromas |
| 2017-01-01 | Deletion of a delegated commune | 39566 → 39018 | Villeneuve-lès-Charnod → Aromas |
| 1973-01-01 | Simple merger | 39018 | Aromas |
| 1973-01-01 | Simple merger | 39082 → 39018 | Ceffia → Aromas |
| 1943-01-01 | Creation | 39018 | Aromas |