The arrondissement Argenteuil has 17 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 95018 | Argenteuil | 106 130 |
| 95252 | Franconville | 37 754 |
| 95063 | Bezons | 36 434 |
| 95306 | Herblay-sur-Seine | 31 779 |
| 95219 | Ermont | 29 489 |
| 95607 | Taverny | 27 593 |
| 95176 | Cormeilles-en-Parisis | 27 292 |
| 95582 | Sannois | 26 924 |
| 95203 | Eaubonne | 26 211 |
| 95424 | Montigny-lès-Cormeilles | 22 457 |
| 95563 | Saint-Leu-la-Forêt | 16 138 |
| 95488 | Pierrelaye | 10 130 |
| 95051 | Beauchamp | 9 849 |
| 95060 | Bessancourt | 8 869 |
| 95491 | Le Plessis-Bouchard | 8 518 |
| 95257 | La Frette-sur-Seine | 4 570 |
| 95256 | Frépillon | 3 317 |