Agatsuma District (吾妻郡 Agatsuma-gun?) is a rural district located in Gunma Prefecture, Japan. As of January 2015, the district had an estimated population of 56,994 and an area of 1,278.55 km², with a population density of 44.6 people per square kilometer.
The area of Agatsuma District was formerly part of Kōzuke Province, and per a census conducted at the start of the Meiji period, consisted of 42 villages administered as tenryō directly by the Tokugawa shogunate and four towns and 44 villages administered as hatamoto-territory, primarily by the Oguri-clan.
With the establishment of the municipality system on April 1, 1889 the area was organized into three towns (Nakanojō, Hara and Naganohara) and ten villages
Coordinates: 36°34′N 138°49′E / 36.567°N 138.817°E