An electrolytic capacitor includes a capacitor element and an electrolyte solution. The capacitor element includes an anode foil, a cathode foil opposite to the anode foil, and a conductive polymer layer interposed between the anode foil and the cathode foil. A dielectric layer is formed on the anode foil. An inorganic conductive layer is formed on the cathode foil. The conductive polymer layer includes a conductive polymer. The cathode foil has a roughened surface on which the inorganic conductive layer is formed. A proportion of water in the electrolyte solution ranges from 0.1% by mass to 6.0% by mass, inclusive.