In a coil component, a first wire has a part that extends in a spiral shape along a peripheral surface of a winding core part with a central axis being the axis of rotation. A second wire has a part that extends in a spiral shape outside the peripheral surface of the winding core in a radial direction centered on the central axis with the central axis being the axis of rotation. The second wire includes an outer part and an inner part. The inner part extends continuously along the peripheral surface of the winding core part in a spiral shape through a range greater than 360 degrees. The outer part extends in a spiral shape outside the inner part in a radial direction centered on the central axis. The inner part is located between the L-th turn and the (L+1)-th turn of the first wire.