An ultrasonic transducer device includes a substrate (220) in which a first opening (10a) and a second opening (10b) are provided, a first ultrasonic transducer element that is formed on the substrate (220) in correspondence with the first opening (10a), and a second ultrasonic transducer element that is formed on the substrate (220) in correspondence with the second opening (10b). The first opening (10a) has a first edge portion (EDA) on a first direction side and a second edge portion (EDB) on a second direction side, the first direction corresponding to a scan direction and the second direction being in the opposite direction to the first direction. Also, the first ultrasonic transducer element includes a first vibrating film (70a) that blocks the first opening (10a), and a first piezoelectric layer (60a) that is provided on the first vibrating film (70a) so as to cover the first edge portion (EDA) of the first opening (10a) in plan view from a thickness direction of the substrate (220).
