is a district located in Nagano Prefecture, Japan.

As of December 1, 2005, the district has an estimated population of 16,742 with a density of 312.12 persons per km2. The total area is 53.64 km2.

Municipalities The district consists of one town:

Sakaki

Notes

History

District Timeline

Recent mergers On September 1, 2003 - The town of Togura was merged with the town of Kamiyamada (from Sarashina District) and the city of Koshoku to form the new city of Chikuma.