| Date | Type | Code | Name |
|---|---|---|---|
| 2016-01-01 | Creation of a new commune | 50359 | Mortain |
| 2016-01-01 | Creation of a new commune | 50359 | Mortain → Mortain-Bocage |
| 2016-01-01 | Deletion | 50359 | Mortain |
| 2016-01-01 | Creation of a new commune | 50056 → 50359 | Bion → Mortain-Bocage |
| 2016-01-01 | Creation of a new commune | 50381 → 50359 | Notre-Dame-du-Touchet → Mortain-Bocage |
| 2016-01-01 | Creation of a new commune | 50494 → 50359 | Saint-Jean-du-Corail → Mortain-Bocage |
| 2016-01-01 | Creation of a new commune | 50638 → 50359 | Villechien → Mortain-Bocage |
| 1943-01-01 | Creation | 50359 | Mortain |