| 2016-01-01 | Creation of a new commune | 50129 | Cherbourg-Octeville → Cherbourg-en-Cotentin |
| 2016-01-01 | Creation of a new commune | 50129 | Cherbourg-Octeville |
| 2016-01-01 | Deletion | 50129 | Cherbourg-Octeville |
| 2016-01-01 | Creation of a new commune | 50173 → 50129 | Équeurdreville-Hainneville → Cherbourg-en-Cotentin |
| 2016-01-01 | Creation of a new commune | 50203 → 50129 | La Glacerie → Cherbourg-en-Cotentin |
| 2016-01-01 | Creation of a new commune | 50416 → 50129 | Querqueville → Cherbourg-en-Cotentin |
| 2016-01-01 | Creation of a new commune | 50602 → 50129 | Tourlaville → Cherbourg-en-Cotentin |
| 2000-02-28 | Simple merger | 50129 | Cherbourg → Cherbourg-Octeville |
| 2000-02-28 | Deletion | 50129 | Cherbourg |
| 2000-02-28 | Simple merger | 50383 → 50129 | Octeville → Cherbourg-Octeville |
| 1943-01-01 | Creation | 50129 | Cherbourg |