Higashitagawa District (東田川郡 Higashitagawa-gun?) is a rural district located in Yamagata Prefecture, Japan. As of October 2013, the district has an estimated population of 29,957 and an area of 282.47 km². Much of the city of Tsuruoka and a portion of the city of Sakata was formerly part of Higashitagawa District.
Tagawa County was an ancient place name in part of Dewa Province. It was divided into Higashitagawa District and Nishitagawa District after the Meiji restoration. Under the Tokugawa shogunate, much of the area of both districts were ruled as part of Tsuruoka Domain. The area became part of Yamagata Prefecture in 1876. At that time, Higashitagawa District consisted of 259 villages.
With the establishment of the municipality system on April 1, 1889, the district was consolidated into 26 villages.
On February 1, 1955, the villages of Izumi, Hirose and Toge merged to form the town of Haguro.
Coordinates: 38°47′06″N 139°57′58″E / 38.785°N 139.966°E