Shimoina District, Nagano

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

As of May 2008, the district has an estimated population of 65,359 with a density of 51.4 persons per km2. The total area is 1,270.43 km2.


The district consists of three towns and ten villages:

  1. ^ a b c Classified as a town.
  2. ^ a b c d e f g h i j Classified as a village.


Map showing original extent of Shimoina District in Nagano Prefecture:

* yellow - areas formerly within the district borders during the early Meiji period
  1. Matsukawa-machi
  2. Takamori-machi
  3. Anan-machi
  4. Achi-mura
  5. Hiraya-mura
  6. Neba-mura
  7. Shimojō-mura
  8. Urugi-mura
  9. Tenryū-mura
  10. Yasuoka-mura
  11. Takagi-mura
  12. Toyooka-mura
  13. Ōshika-mura
Colored areas are in this district.
  • January 4, 1879 - Ina District was split off into Kamiina and Shimoina Districts during the early Meiji period establishment of the municipalities system, which initially consisted of 1 town and 31 villages. Its district headquarters was located at the village of Iida.

District Timeline

  • July 1, 1993 - The town of Kamisato was merged into the expanded city of Iida.

Recent mergers

  • October 1, 2005: The villages of Kami and Minamishinano were merged into the expanded city of Iida.
  • January 1, 2006: The village of Namiai was merged into the expanded village of Achi.
  • March 31, 2009: The village of Seinaiji was merged into the expanded 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.

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

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