Tōno is a city in Iwate Prefecture, Japan. As of 1 January 2020, the city had an estimated population of 26,378, and a population density of 3…Tōno is a city in Iwate Prefecture, Japan. As of 1 January 2020, the city had an estimated population of 26,378, and a population density of 31.6 persons per km² in 10,759 households. The total area of the city is 825.97 square kilometres. Tōno is known as "The City of Folklore" for its rural nature, its preservation of traditional culture and especially for the collection of folktales, Tōno Monogatari, written by Kunio Yanagita in 1910.