Shimoina District, Nagano

Shimoina (下伊那郡, Shimoina-gun) is a district located in Nagano Prefecture, Japan.

As of May, 2008, the district has an estimated Population of 65,359 and a Population Density of 51.4/km2 (133/sq mi). The total area is 1,270.43 km2 (490.52 sq mi).


There are 3 towns and 10 villages within the district.


  • 1878: The district was formed out from Ina District. The seat was located at Iida.
  • July 1, 1993: The town of Kamisato merged into the expanded city of Iida.
  • October 1, 2005: The villages of Kami and Minamishinano merged into the expanded city of Iida.
  • January 1, 2006: The village of Namiai merged into the village of Achi.
  • March 31, 2009: The village of Seinaiji merged into the village of Achi.[1]


  1. ^ "市町村合併情報 長野県 <国土地理協会>". Archived from the original on 2008-04-18. Retrieved 2008-09-07.

Coordinates: 35°25′55″N 137°44′24″E / 35.432°N 137.74°E / 35.432; 137.74

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