The canton Genlis has 22 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 21292 | Genlis | 5 093 |
| 21623 | Tart | 1 517 |
| 21005 | Aiserey | 1 500 |
| 21532 | Rouvres-en-Plaine | 1 303 |
| 21353 | Longecourt-en-Plaine | 1 177 |
| 21632 | Thorey-en-Plaine | 1 176 |
| 21352 | Longeault-Pluvault | 1 174 |
| 21351 | Longchamp | 1 171 |
| 21183 | Collonges-et-Premières | 1 067 |
| 21319 | Izeure | 907 |
| 21320 | Izier | 783 |
| 21067 | Bessey-lès-Cîteaux | 679 |
| 21656 | Varanges | 678 |
| 21261 | Fauverney | 651 |
| 21126 | Cessey-sur-Tille | 637 |
| 21388 | Marliens | 607 |
| 21487 | Pluvet | 432 |
| 21130 | Chambeire | 420 |
| 21330 | Labergement-Foigney | 375 |
| 21057 | Beire-le-Fort | 339 |
| 21242 | Échigey | 316 |
| 21622 | Tart-le-Bas | 241 |