Toshima is a special ward in the Tokyo Metropolis in Japan. It is one of the eight central wards of the Tokyo Metropolitan area. Located in the northern area of Tokyo, Toshima is bordered by the wards of Nerima, Itabashi, and Kita in the north and Nakano, Shinjuku, and Bunkyo in the south. The ward was founded on March 15, 1947, and reached a peak resident population of 370,000 in 1965.