UCMU provide services for Châteauguay, Kahnawake, Ste Catherine, St Constant, Candiac-Delson, St Jacques le Mineur, Napierville, St Paul de l'Ile aux Noix-St Blaise, St Bernard de Lacolle, St Georges de Clarenceville-Noyan, St Patrice de Sherrington, St Edouard, St Michel, St Rémi, Ste Clotilde, St Urbain Premier, St Isidore, Mercier, Lery, Beauharnois, Salaberry de Valleyfield, Coteau du Lac, Les Cèdres, Pointe des Cascades, Pincourt, L'Ile Perrot, Vaudreuil-Dorion, St Lazare, Hudson, Rigaud, Ste Marthe, St Clet, St Polycarpe. They also provides services to CETAM, Police du Roussillon, Police de Châteauguay and the Sûreté du Québec.