| Date | Type | Code | Name |
|---|---|---|---|
| 2020-03-09 | Deletion of a delegated commune | 50012 → 50267 | Angoville-sur-Ay → Lessay |
| 2020-03-09 | Deletion of a delegated commune | 50267 | Lessay |
| 2016-01-01 | Creation of a new commune | 50012 → 50267 | Angoville-sur-Ay → Lessay |
| 2016-01-01 | Creation of a new commune | 50267 | Lessay |
| 2016-01-01 | Creation of a new commune | 50267 | Lessay |
| 1943-01-01 | Creation | 50267 | Lessay |