The canton Freyming-Merlebach has 11 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 57240 | Freyming-Merlebach | 13 266 |
| 57332 | Hombourg-Haut | 5 976 |
| 57207 | Farébersviller | 5 224 |
| 57644 | Seingbouse | 1 722 |
| 57061 | Béning-lès-Saint-Avold | 1 095 |
| 57073 | Betting | 858 |
| 57316 | Henriville | 742 |
| 57271 | Guenviller | 680 |
| 57122 | Cappel | 676 |
| 57052 | Barst | 570 |
| 57337 | Hoste | 562 |