Tanuma, Tochigi
Tanuma was a town located in Aso District, Tochigi Prefecture, Japan.
As of 2003, the town had an estimated population of 28,904 and a density of 160.54 persons per km². The total area was 180.04 km².
On February 28, 2005, Tanuma, along with the town of Kuzu, was merged into the expanded city of Sano.
Tanuma was on the JR line and could be accessed easily.