| 2021-01-01 | Deletion of a delegated commune | 68108 → 68240 | Grentzingen → Illtal |
| 2021-01-01 | Deletion of a delegated commune | 68133 → 68240 | Henflingen → Illtal |
| 2021-01-01 | Deletion of a delegated commune | 68240 | Oberdorf → Illtal |
| 2016-01-01 | Deletion | 68240 | Oberdorf |
| 2016-01-01 | Creation of a new commune | 68108 → 68240 | Grentzingen → Illtal |
| 2016-01-01 | Creation of a new commune | 68133 → 68240 | Henflingen → Illtal |
| 2016-01-01 | Creation of a new commune | 68240 | Oberdorf → Illtal |
| 2016-01-01 | Creation of a new commune | 68240 | Oberdorf |
| 1943-01-01 | Creation | 68240 | Oberdorf |