A coil component includes a body, a support member disposed within the body, a coil disposed on the support member, and including a lower surface in contact with the support member, an upper surface facing the lower surface, an insulating wall covering a side of the coil and filling a gap between respective turns of the coil, an insulating film disposed between adjacent the insulating walls and covering the upper surface of the coil, and an external electrode disposed on the body. The insulating wall includes a plurality of layers, with an interface therebetween. A height of the insulating wall is greater than or equal to a height of an upper surface of the insulating film.