A parking management system includes: a vacant slot sensor which detects a vacant slot among parking slots and creates vacant slot information indicating the position of the vacant slot; a vehicle information obtainment unit which obtains vehicle information of a vehicle; a first information obtainment unit which obtains first information indicating the presence or absence of a passenger of the vehicle; and a parking slot determination unit which determines a parking slot in which the vehicle is to be parked, and outputs the parking slot. When there are vacant slots and the first information indicates that a passenger is present, the parking slot determination unit determines, as the parking slot, a vacant slot located at a first distance from a facility which the passenger uses after alighting from the vehicle, preferentially over a vacant slot located at a second distance, which is greater than the first distance, from the facility.