| Date | Type | Code | Name |
|---|---|---|---|
| 2021-01-01 | Deletion of a delegated commune | 33055 | Blaignan → Blaignan-Prignac |
| 2019-01-01 | Deletion | 33055 | Blaignan |
| 2019-01-01 | Creation of a new commune | 33055 | Blaignan |
| 2019-01-01 | Creation of a new commune | 33055 | Blaignan → Blaignan-Prignac |
| 2019-01-01 | Creation of a new commune | 33338 → 33055 | Prignac-en-Médoc → Blaignan-Prignac |
| 1943-01-01 | Creation | 33055 | Blaignan |