A technique for managing parking of vehicles at a lower cost is disclosed. A parking management system includes a terminal device and a server device. The terminal device includes: a storage unit that stores user information; a reading unit that reads identification information of a parking space from a code associated with the parking space, and a transmission unit that transmits, to the server device, parking position information which includes the stored user information and the read identification information. The server device includes: a receiving unit that receives the parking position information from the terminal device; and an identifying unit that identifies a position where a vehicle is parked and a user of the parked vehicle, based on the received parking position information.