Provided is a sensor device including a sensor configured to output a vibration datum by detecting a change in a state of a vibration in a first object when a second object touches the first object, a holding section configured to hold, at a portion of the first object which is different from a portion where the second object touches, the sensor in a state where the vibration in the first object is transmitted, and a communication section configured to transmit the single vibration datum detected by the sensor to an analyzing device which identifies a touch position where the second object touches the first object by analyzing the vibration datum.