Akishima is located on the left bank of theTama River, about 35 kilometers west of central Tokyo. TheTamagawa 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 theJR EastOme Line running east to west through the city as a boundary, housing estates,industrial parks, golf courses, and theShowa Memorial Park occupy a large area in the north. In the south, residential areas occupy a large proportion of the city area.
Akishima has ahumid subtropical climate (KöppenCfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Akishima is 13.9 °C. The average annual rainfall is 1998 mm with September as the wettest month. The temperatures are highest on average in August, at around 25.4 °C, and lowest in January, at around 2.5 °C.[2]
The area of present-day Akishima was part of ancientMusashi Province, and a center forsericulture. In the post–Meiji Restoration cadastral reform of July 22, 1878, the area became part ofKitatama District inKanagawa Prefecture. Haiji, Nakagami, and Sotoyatsu villages were created on April 1, 1889, with the establishment of the modern municipalities system. The entire district was transferred to the control of Tokyo Metropolis on April 1, 1893. The latter two villages merged on January 1, 1928, to form Shōwa Village. Following the dedication of Tachikawa Airfield, which was established in 1922, the surrounding area developed in the 1930s with large-scale munitions factories for aircraft manufacturing for theImperial Japanese Army.
Shōwa was elevated to town status on January 1, 1941, and through merger with the village of Haiji on May 1, 1954, became the city of Akishima. The name comes from thekun'yomi of the firstkanji in the name of the former town of Shōwa, and theon'yomi of the secondkanji in the name of the former village of Haijima.
Akishima has amayor-council form of government with a directly elected mayor and aunicameral city council of 22 members. Akishima contributes one member to the Tokyo Metropolitan Assembly. In terms of national politics, the city is part ofTokyo 25th district of thelower house of theDiet of Japan.