Akishima (昭島市, Akishima-shi) is a city located in the western portion of Tokyo Prefecture, Japan. As of 1 April 2021[update], the city had an estimated population of 113,542, and a population density of 6500 persons per km2. The total area of the city is 17.34 square kilometres (6.70 sq mi).
Akishima is located on the left bank of the Tama River, about 35 kilometers west of central Tokyo. The Tamagawa Aqueduct flows in the northern part of the city. The city area generally slopes gently from northwest to southeast toward the Tama River, which flows to the south of the city. The altitude of the city area is 170.72 meters above sea level at the highest point and 76.68 meters at the lowest point. With the JR East Ome Line running east to west through the city as a boundary, housing estates, industrial parks, golf courses, and the Showa Memorial Park occupy a large area in the north. In the south, residential areas occupy a large proportion of the city area.