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Location of Ōishida in Yamagata Prefecture
|• Total||79.54 km2 (30.71 sq mi)|
|Population (October 2015)|
|• Density||92.3/km2 (239/sq mi)|
|Time zone||Japan Standard Time (UTC+9)|
|- Flower||Cherry blossom|
|Address||1 Midori-cho, Ōishida-machi, Kitatagawa-gun, Yamagata-ken 999-4112|
Ōishida is located in the mountains of north-east Yamagata Prefecture. The Mogami River flows through the town.
Ōishida has a Humid continental climate (Köppen climate classification Dfa) with large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. Precipitation is significant throughout the year, but is heaviest from August to October.
The area of present-day Ōishida was part of ancient Dewa Province and is mentioned in the Engishiki records as the location of a fortified settlement on the highway connecting Akita Castle on the Sea of Japan with Tagajo on the Pacific coast. During the Edo period it was a river port on the Mogami River partly under the control of Shinjō Domain and partly tenryō territory administered directly by the Tokugawa shogunate. After the start of the Meiji period, the area became part of Kitamurayama District, Yamagata Prefecture. The village of Ōishida was established on April 1, 1889. It was raised to town status on January 23, 1897.
The economy of Ōishida is based on agriculture.
Ōishida has one elementary school and one middle school.
Twin towns — Sister cities
- "International Exchange". List of Affiliation Partners within Prefectures. Council of Local Authorities for International Relations (CLAIR). Retrieved 21 November 2015.
Media related to Ōishida, Yamagata at Wikimedia Commons
- Official website (Japanese)