In the title compound, [CuCl(C7H7NO2)(2)(H2O)(2)]ClO4, the metal atom is coordinated in a distorted square-pyramidal environment with one aqua ligand [Cu-O 1.944 (4) Angstrom], one chloride ion [Cu-Cl 2.2538 (15) Angstrom] and two monodentate carboxylate O atoms [Cu-O 1.994 (4) and 2.004 (4) Angstrom] in basal positions. The apical position is occupied by another aqua ligand [Cu-O 2.367 (4) Angstrom].