Tsukumi (津久見市, Tsukumi-shi) is a city located in Ōita Prefecture, Japan. The city was founded on April 1, 1951. As of March 31, 2017, the city has an estimated population of 18,341, with 8,384 households and a population density of 230 persons per km2. The total area is 79.48 km2. West of the city is the Todaka Mine, one the biggest limestone quarries in Japan. The limestone is used in the Tsukumi cement plant owned by the Taiheiyo Cement Corporation. More information...
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