A coil component includes a body including a plurality of effective layers stacked in one direction; a coil portion embedded in the body, the coil portion including a plurality of coil patterns respectively disposed in the plurality of effective layers, the coil portion further including a lead-out pattern; and a core penetrating through an interior of the coil portion, wherein the coil portion further includes a resistance reducing portion extending from an outer circumferential surface of each of the coil patterns to an outside of the core in a respective one of the effective layers in a radially outward direction of the coil portion.