was a

district A district is a type of administrative division that, in some countries, is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or counties, several municipalities, subdivisions o ...

located in

Iwate Prefecture is a prefecture of Japan located in the Tōhoku region of Honshu. It is the second-largest Japanese prefecture at , with a population of 1,210,534 (as of October 1, 2020). Iwate Prefecture borders Aomori Prefecture to the north, Akita Prefectur ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. As of September 1, 2005, the district had an estimated

population Population typically refers to the number of people in a single area, whether it be a city or town, region, country, continent, or the world. Governments typically quantify the size of the resident population within their jurisdiction using a ...

of 10,026. The total area was 123.15 km². The day before the dissolution on September 25, 2011, the district had only one town. * Fujisawa On September 26, 2011, the town of Fujisawa was merged with the expanded city of

Ichinoseki is a city located in Iwate Prefecture, in the Tōhoku region of northern Japan. , the city had a population of 114,476 and a population density of 91 persons per km² in 46,375 households. It is currently the second largest city by population in ...

. Higashiiwai District was dissolved as a result of this merger.

post-WWII timeline

*January 1, 1955 - The village of Maikawa was merged with the villages of Ganmi, Hagisho and Yasaka (from Nishiiwai District), and the old city of

(1st) to create the new and expanded city of

(2nd). *February 1, 1955 - The villages of Tagawatsu and Nagasaka were merged to create the town of Higashiyama. *April 1, 1955 **The town of Fujisawa, the villages of Yasawa, Oumi and parts of Otsuho (the localities of Otaki and Horowa) were merged to create the town of Fujisawa. **The villages of Orikabe, Yakoshi and the remaining parts of Otsuho were merged to create the village of Murone. **The village of Namabo was merged with the town of Maesawa, and the villages of Hakusan and Furushiro (from Isawa District) to create the town of Maesawa (in Isawa District). **The towns of Yokusawa and Ohara, and the villages of Sazawa, Shibutami and Kyoda were merged to create the town of Daitō. *April 15, 1955 - The village of Nagashima was merged with the older town of

Hiraizumi is a town located in Nishiiwai District, Iwate Prefecture, Japan. , the town had an estimated population of 7,408 and a population density of in 2,616 households. The total area of the town was . It is noted for the Historic Monuments and Site ...

(from Nishiiwai District) to create the new town of

(from Nishiiwai District). *September 30, 1956 **The villages of Kamoi and Kadozaki were merged to create the village of Kawasaki. **The town of Senmaya was merged with the villages of Konashi, Okutama, and Iwashimuzu to create the town of Senmaya. *November 1, 1958 - The village of Matsukawa was merged into the village of Higashiyama and was elevated to town status. *September 20, 2005 - The towns of Daitō, Higashiyama and Senmaya, and the villages of Kawasaki and Murone were merged with the town of Hanaizumi (from Nishiiwai District) and the old city of

(2nd) to create the new and expanded city of

(3rd). *September 26, 2011 - The town of Fujisawa was merged into the expanded city of

. Higashiiwai District was dissolved as a result of this merger. Former districts of Iwate Prefecture {{Iwate-geo-stub