In the crystal structure of the title compound, [Co(C(8)H(8)O(5))(C(3)H(4)N(2))(3)]·3.35H(2)O, the central Co(II) ion is in a slightly distorted octa-hedral environment, coordinated by the bridg-ing O atom from the bicyclo-[2.2.1]heptane ligand, by two carboxyl-ate O atoms from two different carboxyl-ate groups and by three N atoms from imidazole ligands. Uncoordinated water mol-ecules, some of them disordered, are present in the crystal structure. In the crystal structure, mol-ecules are linked by O-H⋯O, N-H⋯O and O-H⋯N hydrogen-bonding inter-actions.