| Date | Type | Code | Name |
|---|---|---|---|
| 2017-01-01 | Creation of a new commune | 39273 | Lains |
| 2017-01-01 | Creation of a new commune | 39273 | Lains → Montlainsia |
| 2017-01-01 | Deletion | 39273 | Lains |
| 2017-01-01 | Creation of a new commune | 39195 → 39273 | Dessia → Montlainsia |
| 2017-01-01 | Creation of a new commune | 39347 → 39273 | Montagna-le-Templier → Montlainsia |
| 1943-01-01 | Creation | 39273 | Lains |