| • | Tone (利根郡; -gun) is a district located in Gunma, Japan.
As of 2003 population data but accounting for decreases due to the February 13, 2005 merger, the district has an estimated population of 41,454 and a density of 31.3 persons per km². The total area is 1,322.38 km².
Source: [wikipedia: tone district, gunma]
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