A piezoelectric component, comprising: a support substrate; a piezoelectric element having an elongated shape, which possesses a longitudinal direction of the piezoelectric element and a transverse direction perpendicular to the longitudinal direction, comprising a piezoelectric body and at least a first and second electrode, wherein the first vibrating electrode is disposed on one principal surface of the piezoelectric body and is formed so as to extend from one longitudinal end of the piezoelectric body toward the other longitudinal end thereof, whereas the second vibrating electrode is disposed on the other principal surface of the piezoelectric body and is formed so as to extend from the other longitudinal end toward the one longitudinal end, the first and second vibrating electrodes facing each other; a first support portion and a second support portion, each composed of at least two or more bumps, and each made of an electrically conductive material, which are disposed between the piezoelectric element and the support substrate at both longitudinal ends of the piezoelectric element having the elongated shape; and an electrically conductive joining material disposed on each of the first support portion and the second support portion to join each of the first support portion and the second support portion to at least the other principal surface at the longitudinal ends of the piezoelectric element, respectively, a barycenter of the piezoelectric element as seen in a plan view being offset, the amount of offset in the longitudinal direction of the piezoelectric element being equal to 0.8% to 15% of the longitudinal dimension of the piezoelectric element and the amount of offset in the transverse direction perpendicular to the longitudinal direction of the piezoelectric element being equal to 4% to 30% of the transverse dimension of the piezoelectric element, with respect to a bisection point in which a line segment connecting the barycenter of the first support portion and the barycenter of the second support portion as seen in a plan view of the piezoelectric component is bisected, wherein, at each of the longitudinal ends of the piezoelectric element, the other principal surface and at least part of a side surface of the piezoelectric element are covered with the electrically conductive joining material. a support substrate; a piezoelectric element having an elongated shape, which possesses a longitudinal direction of the piezoelectric element and a transverse direction perpendicular to the longitudinal direction, comprising a piezoelectric body and at least a first and second electrode, wherein the first vibrating electrode is disposed on one principal surface of the piezoelectric body and is formed so as to extend from one longitudinal end of the piezoelectric body toward the other longitudinal end thereof, whereas the second vibrating electrode is disposed on the other principal surface of the piezoelectric body and is formed so as to extend from the other longitudinal end toward the one longitudinal end, the first and second vibrating electrodes facing each other; a first support portion and a second support portion, each composed of at least two or more bumps, and each made of an electrically conductive material, which are disposed between the piezoelectric element and the support substrate at both longitudinal ends of the piezoelectric element having the elongated shape; and an electrically conductive joining material disposed on each of the first support portion and the second support portion to join each of the first support portion and the second support portion to at least the other principal surface at the longitudinal ends of the piezoelectric element, respectively, a barycenter of the piezoelectric element as seen in a plan view being offset, the amount of offset in the longitudinal direction of the piezoelectric element being equal to 0.8% to 15% of the longitudinal dimension of the piezoelectric element and the amount of offset in the transverse direction perpendicular to the longitudinal direction of the piezoelectric element being equal to 4% to 30% of the transverse dimension of the piezoelectric element, with respect to a bisection point in which a line segment connecting the barycenter of the first support portion and the barycenter of the second support portion as seen in a plan view of the piezoelectric component is bisected, wherein, at each of the longitudinal ends of the piezoelectric element, the other principal surface and at least part of a side surface of the piezoelectric element are covered with the electrically conductive joining material.