A coil component includes: a body portion; a coil portion; and an electrode portion, wherein the coil portion includes: a support member; a first coil layer disposed on a first surface of the support member, having first conductive patterns having a planar coil shape, and having a constant line width up to an innermost end portion; a second coil layer disposed on a second surface of the support member, having second conductive patterns having a planar coil shape, and having a constant line width up to an innermost end portion; a via hole penetrating through the support member and partially overlapping innermost end portions of the first and second conductive patterns; and a via conductor filling a portion of the via hole and connected to the innermost end portions of the first and second conductive patterns.