Ba0.85Ca0.15(Ti1−xZrx)O3(BCTZ) ceramics with x= 0.05, 0.10, 0.15, 0.20, 0.25, 0.30 were prepared by the solid-state reaction method. Calcination of the powders was carried out at 1100 ∘C for 4 h and the green pellets were sintered at 1400 ∘C for 2 h. X-ray diffraction patterns of the sintered pellets showed tetragonal splitting up to x= 0.10 while the mixture of the rhombohedral/cubic phase appeared at higher ZrO₂ concentrations. Maximum piezoelectric charge constant d33= 510 pC/N and strain (S= 0.103%) were measured for BCT doped by 0.10 mol ZrO₂. Dielectric constant, remnant polarization and saturation polarization also found maxima for this composition. The Curie temperature (TC) of the compositions decreased with increase in ZrO₂ concentration and reached 98 ∘C, 87 ∘C and 36 ∘C at x= 0.05, 0.10, 0.15 mol, respectively. The remaining compositions have TC below the room temperature; therefore, they can be used for subzero/cryogenic applications. The scanning electron microscopy study revealed an increase in grain size with increase in ZrO₂ concentration and confirmed the complete solubility of ZrO₂ in the crystal lattice. Overall, low ZrO₂-doped BCT compositions with high d33 could be suitable for low temperature (<80 ∘C) applications.Ba0.85Ca0.15(Ti1−xZrx)O3(BCTZ) ceramics with x= 0.05, 0.10, 0.15, 0.20, 0.25, 0.30 were prepared by the solid-state reaction method. Calcination of the powders was carried out at 1100 ∘C for 4 h and the green pellets were sintered at 1400 ∘C for 2 h. X-ray diffraction patterns of the sintered pellets showed tetragonal splitting up to x= 0.10 while the mixture of the rhombohedral/cubic phase appeared at higher ZrO₂ concentrations. Maximum piezoelectric charge constant d33= 510 pC/N and strain (S= 0.103%) were measured for BCT doped by 0.10 mol ZrO₂. Dielectric constant, remnant polarization and saturation polarization also found maxima for this composition. The Curie temperature (TC) of the compositions decreased with increase in ZrO₂ concentration and reached 98 ∘C, 87 ∘C and 36 ∘C at x= 0.05, 0.10, 0.15 mol, respectively. The remaining compositions have TC below the room temperature; therefore, they can be used for subzero/cryogenic applications. The scanning electron microscopy study revealed an increase in grain size with increase in ZrO₂ concentration and confirmed the complete solubility of ZrO₂ in the crystal lattice. Overall, low ZrO₂-doped BCT compositions with high d33 could be suitable for low temperature (<80 ∘C) applications.