Iwate (岩手郡 Iwate-gun) is a district located in Iwate, Japan. As of 2003, the district has an estimated population of 142,495. The total area is 2,846.44 km². The district covers the northern part of Morioka Metropolitan Area. The population is declining in all but the village of Takizawa.
There are three towns and one village within the district.
District Timeline 
- March 29, 1896 - Kitaiwate and Minamiiwate Districts merged to become Iwate District. (1 town, 24 villages)
- December 23, 1940 - The village of Shizukuishi gained town status. (2 towns, 21 villages)
- April 10, 1941 - The villages of Asagishi, Nakano and Motomiya were merged into the city of Morioka. (2 towns, 18 villages)
- July 1, 1948 - The town of Kuzumaki and the village of Ekari moved from Kunohe District to Iwate District. (3 towns, 19 villages)
- April 1, 2002 - The town of Ashiro moved from Ninohe District to Iwate District. (5 towns, 3 villages)
- September 1, 2005 - The towns of Ashiro and Nishine, and the village of Matsuo merged forming the city of Hachimantai. (3 towns, 2 villages)
- January 10, 2006 - The village of Tamayama was merged into the city of Morioka. (3 towns, 1 village)
- January 1, 2014 - The village of Takizawa upgrade into the new city of Takizawa. (3 towns)
Coordinates: 39°48′37″N 141°07′22″E / 39.8103°N 141.1228°E