Tone District, Gunma

 is a rural district located in Gunma Prefecture, Japan. As of January 2015, the district had an estimated population of 34,946 and an area of 1,322.23 km2, with a population density of 26.4 people per square kilometer.
Towns and villages.
Much of the city of Numata was formerly part of the district.
History.
The area of Tone District was formerly part of Kōzuke Province. Per a census conducted at the end of the Edo period, the area was divided into one town and 66 villages administered as "tenryō" directly by the Tokugawa shogunate or various "hatamoto" and two towns and 47 villages under the control of Numata Domain. One village was under the joint control of the Shogunate and Numata Domain.