is a district located in Niigata Prefecture, Japan.
As of July 1, 2019, the district had an estimated population of 11,481 with a density of 362 persons per km<sup>2</sup>. The total area was 31.71 km<sup>2</sup>.
The district consists of only one town:
When the district was formed back in the Meiji Period, the district covered the cities of Sanjà  and Mitsuke, the town of Tagami, and parts of Kamo and the northern part of Nagaoka.