| 2017-01-01 | Creation of a new commune | 14431 | Mézidon-Canon → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14431 | Mézidon-Canon |
| 2017-01-01 | Deletion | 14431 | Mézidon-Canon |
| 2017-01-01 | Creation of a new commune | 14031 → 14431 | Les Authieux-Papion → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14189 → 14431 | Coupesarte → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14201 → 14431 | Crèvecœur-en-Auge → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14208 → 14431 | Croissanville → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14233 → 14431 | Écajeul → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14313 → 14431 | Grandchamp-le-Château → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14359 → 14431 | Lécaude → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14386 → 14431 | Magny-la-Campagne → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14387 → 14431 | Magny-le-Freule → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14422 → 14431 | Le Mesnil-Mauger → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14444 → 14431 | Monteille → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14493 → 14431 | Percy-en-Auge → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14567 → 14431 | Saint-Crespin → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14600 → 14431 | Saint-Julien-le-Faucon → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14617 → 14431 | Sainte-Marie-aux-Anglais → Mézidon Vallée d'Auge |
| 2017-01-01 | Creation of a new commune | 14749 → 14431 | Vieux-Fumé → Mézidon Vallée d'Auge |
| 2000-01-01 | Association merger converted to a simple merger | 14431 | Mézidon-Canon |
| 2000-01-01 | Association merger converted to a simple merger | 14133 → 14431 | Canon → Mézidon-Canon |
| 1972-09-01 | Association merger | 14431 | Mézidon → Mézidon-Canon |
| 1972-09-01 | Deletion | 14431 | Mézidon |
| 1972-09-01 | Association merger | 14133 → 14431 | Canon → Mézidon-Canon |
| 1943-01-01 | Creation | 14431 | Mézidon |