is a district located in Sōya Subprefecture, Hokkaido, Japan. As of 2004, the district has an estimated population of 16,986 and a density of 8.87 persons per km2. The total area is . Towns and villages Esashi Hamatonbetsu Nakatonbetsu Merger On March 20, 2006, the town of Utanobori merged into the town of Esashi. Districts in Hokkaido