Tosu (鳥栖市; -shi) is a city located in Saga Prefecture on the island of Kyushu, Japan. As of 2003, the city has an estimated population of 62,176 and a population density of 866.81 persons per km². The total area is 71.73 km². The city was founded on April 1, 1954. Source: [wikipedia: tosu, saga]