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Koganei City Hall
Koganei City Hall
Flag of Koganei
Official seal of Koganei
Location of Koganei in Tokyo
Location of Koganei in Tokyo
Koganei is located in Japan
Coordinates: 35°41′58.1″N 139°30′10.7″E / 35.699472°N 139.502972°E / 35.699472; 139.502972
Koganei,_Tokyo Latitude and Longitude:

35°41′58.1″N 139°30′10.7″E / 35.699472°N 139.502972°E / 35.699472; 139.502972
Region Kantō
Prefecture Tokyo
 •  MayorShinichiro Nishioka (since December 2015)
 • Total11.30 km2 (4.36 sq mi)
 (March 2021)
 • Total123,698
 • Density11,000/km2 (28,000/sq mi)
Time zone UTC+9 ( Japan Standard Time)
• Tree Zelkova serrata
• Flower Sakura
• Bird Common kingfisher
• Insect Tree Cricket
Phone number042-383-1111
Address6-6-3 Honmachi, Koganei-shi, Tokyo 184-8504
Website Official website
Koganei Park

Koganei (小金井市, Koganei-shi) is a city located in the western portion of Tokyo, Japan. As of 1 March 2021, the city had an estimated population of 123,698 in 61,832 households. The total area of the city is 11.30 square kilometres (4.36 sq mi) so the population density is about 11,000 persons per km². [1]


Koganei approximately at the center of Tokyo metropolis, and is located about 20 kilometers west of Shinjuku, where Tokyo Metropolitan Government has its headquarters. It is flanked on the north and the south by two large parks. To the north is Koganei Park, which includes the Edo-Tokyo Open Air Architectural Museum, a branch of the Edo-Tokyo Museum located in Ryōgoku, Tokyo. To the south is Nogawa Park and Tama Cemetery. The city has an elevation of between 40 and 70 meters above sea level.

Surrounding municipalities


Koganei has a Humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Koganei is 14.0 °C. The average annual rainfall is 1647 mm with September as the wettest month. The temperatures are highest on average in August, at around 25.5 °C, and lowest in January, at around 2.6 °C. [2]


Per Japanese census data, [3] the population of Musashino Koganei grew rapidly in the 1950s and 1960s, but has remained relatively constant for the past 40 years.

Historical population
Year Pop. ±%
1920 3,866—    
1930 6,129+58.5%
1940 12,650+106.4%
1950 22,616+78.8%
1960 45,734+102.2%
1970 94,448+106.5%
1980 102,456+8.5%
1990 105,899+3.4%
2000 111,825+5.6%
2010 118,888+6.3%


The area of present-day Koganei was part of ancient Musashi Province. In the post- Meiji Restoration cadastral reform of July 22, 1878, the area became part of Kitatama District in Kanagawa Prefecture. The village of Koganei was created on April 1, 1889 with the establishment of the modern municipalities system. Kitatama District was transferred to the administrative control of Tokyo Metropolis on April 1, 1893. Koganei was elevated to town status in 1937, and to city status in 1958. [4]


Koganei has a mayor-council form of government with a directly elected mayor and a unicameral city council of 24 members. Koganei contributes one member to the Tokyo Metropolitan Assembly. In terms of national politics, the city is part of Tokyo 18th district of the lower house of the Diet of Japan.


Koganei is largely a bedroom community for central Tokyo. Gainax, Studio Ghibli and KOGANEI have their corporate headquarters in Koganei. [5] [6]



Major products are tomatoes, eggplants, roots, udo (plant related to ginseng, used in medicine and cooking), and rhubarbs.




High schools

Tokyo Metropolitan Government Board of Education operates the following public high schools.

The following private high schools are also located in Koganei.

Junior high and elementary schools

The Koganei Municipal Board of Education operates six public junior high schools and nine public elementary schools. [7]

Public junior high schools include: [8]

Public elementary schools include: [8]

There is one private junior high school and one private elementary school. [7]



JR logo (east).svg JR EastChūō Main Line

SeibuRailway mark.svg - Seibu Railway - Seibu Tamagawa Line


Koganei is not served by any national highways or expressways


  1. ^ "Konagei city official statistics" (in Japanese). Japan.
  2. ^ Koganei climate data
  3. ^ Koganei population statistics
  4. ^ "Konagei city official home page "小金井市の紹介"" (in Japanese). Japan.
  5. ^ " 会社情報." Studio Ghibli. Retrieved on February 26, 2010.
  6. ^ " 会社概要 Archived 2014-02-09 at the Wayback Machine." Gainax. Retrieved on February 26, 2010.
  7. ^ a b "Konagei city official home page "小学校・中学校"" (in Japanese). Japan.
  8. ^ a b "市立小・中学校の案内". Koganei City. Retrieved 2022-12-04.

External links