An information provision system includes a terminal device, and an information provision device that can communicate with the terminal device. The information provision device includes a communicating section configured to communicate with the terminal device, a head count information managing section configured to manage current head count information for each position, and a crowd information generating section configured to determine a position for making a notification display based on the managed head count information, and generate crowd information containing information of the determined position, and a transmission control section configured to transmit the generated crowd information from the communicating section to the terminal device. The terminal device includes a communicating section configured to communicate with the information provision device, and a control section configured to execute display of a map image on a display section, and execute a display based on the transmitted crowd information on the map image.