The canton Joinville has 38 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 52250 | Joinville | 2 915 |
| 52490 | Thonnance-lès-Joinville | 720 |
| 52456 | Saint-Urbain-Maconcourt | 598 |
| 52512 | Vecqueville | 502 |
| 52175 | Donjeux | 380 |
| 52440 | Rouvroy-sur-Marne | 371 |
| 52178 | Doulevant-le-Château | 370 |
| 52442 | Rupt | 351 |
| 52484 | Suzannecourt | 351 |
| 52346 | Mussey-sur-Marne | 349 |
| 52212 | Fronville | 296 |
| 52230 | Gudmont-Villiers | 278 |
| 52118 | Chatonrupt-Sommermont | 268 |
| 52172 | Dommartin-le-Saint-Père | 265 |
| 52321 | Mertrud | 183 |
| 52110 | Charmes-la-Grande | 161 |
| 52359 | Nully | 141 |
| 52029 | Autigny-le-Grand | 130 |
| 52356 | Nomécourt | 115 |
| 52055 | Blécourt | 111 |
| 52129 | Cirey-sur-Blaise | 108 |
| 52047 | Beurville | 102 |
| 52057 | Blumeray | 100 |
| 52231 | Guindrecourt-aux-Ormes | 97 |
| 52284 | Leschères-sur-le-Blaiseron | 87 |
| 52149 | Courcelles-sur-Blaise | 86 |
| 52039 | Baudrecourt | 84 |
| 52007 | Ambonville | 82 |
| 52495 | Trémilly | 82 |
| 52019 | Arnancourt | 78 |
| 52065 | Bouzancourt | 72 |
| 52201 | Flammerécourt | 72 |
| 52316 | Mathons | 68 |
| 52066 | Brachay | 58 |
| 52511 | Vaux-sur-Saint-Urbain | 58 |
| 52030 | Autigny-le-Petit | 57 |
| 52199 | Ferrière-et-Lafolie | 50 |
| 52109 | Charmes-en-l'Angle | 6 |