| Date | Type | Code | Name |
|---|---|---|---|
| 2017-01-01 | Creation of a new commune | 29021 | Brignogan-Plages |
| 2017-01-01 | Creation of a new commune | 29021 | Brignogan-Plages → Plounéour-Brignogan-plages |
| 2017-01-01 | Deletion | 29021 | Brignogan-Plages |
| 2017-01-01 | Creation of a new commune | 29203 → 29021 | Plounéour-Trez → Plounéour-Brignogan-plages |
| 1943-01-01 | Creation | 29021 | Brignogan-Plages |