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Coordinates: 35°34′N 139°22′E / 35.567°N 139.367°E / 35.567; 139.367
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Sagamihara City
From top left: Tanzawa mountains, USARJ Sagami General Depot, Lake Sagami, Hashimoto District, Odakyu Sagami-Ōno Station, JAXA Sagamihara Campus, Sakura Festival
From top left: Tanzawa mountains, USARJ Sagami General Depot, Lake Sagami, Hashimoto District, Odakyu Sagami-Ōno Station, JAXA Sagamihara Campus, Sakura Festival
Flag of Sagamihara
Official seal of Sagamihara
Location of Sagamihara in Kanagawa Prefecture
Location of Sagamihara in Kanagawa Prefecture
Sagamihara is located in Japan
Coordinates: 35°34′N 139°22′E / 35.567°N 139.367°E / 35.567; 139.367
First official recorded110 AD
City settledNovember 20, 1954
 • MayorKentarō Motomura (since April 2019)
 • Total328.91 km2 (126.99 sq mi)
 (May 1, 2021)
 • Total723,470
 • Density2,200/km2 (5,700/sq mi)
Time zoneUTC+9 (Japan Standard Time)
– TreeZelkova serrata
– FlowerHydrangea
– BirdSkylark
Phone number042-754-1111
Address2-11-15 Chūō, Chūō-ku, Sagamihara-shi, Kanagawa-ken 252-5277
WebsiteOfficial website
Downtown of Sagamihara(Hashimoto)
A street view in Sagamihara
Sagamihara city hall

Sagamihara (相模原市, Sagamihara-shi) is a city in Kanagawa Prefecture, Japan. As of 1 May 2021, the city has an estimated population of 723,470, with 334,812 households,[1] and a population density of 1,220 persons per km2. The total area of the city is 328.91 square kilometres (126.99 sq mi).[2] Sagamihara is the third-most-populous city in the prefecture, after Yokohama and Kawasaki, and the fifth most populous suburb of the Greater Tokyo Area. Its northern neighbor is Machida, with which a cross-prefectural merger has been proposed.[3]

On April 1, 2010, the city became the 19th city designated by government ordinance. As a result of this, three wards were established: Midori-ku, Chūō-ku and Minami-ku.


Sagamihara covers a large area of northwestern Kanagawa Prefecture. The main areas of commercial activity in Sagamihara are located near Hashimoto Station on the JR East Yokohama Line and Keio Sagamihara Line; Sagamihara Station on the Yokohama Line; and Sagami-Ōno Station on the Odakyu Odawara Line.[citation needed] Western Sagamihara is within the Tanzawa Mountains.


Surrounding municipalities[edit]

Kanagawa Prefecture


Yamanashi Prefecture


Sagamihara has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Sagamihara is 12.6 °C. The average annual rainfall is 1906 mm with September as the wettest month. The temperatures are highest on average in August, at around 23.9 °C, and lowest in January, at around 1.2 °C.[4]


Per Japanese census data,[5] the population of Sagamihara has grown steadily over the past 70 years.

Historical population
1950 106,827—    
1960 137,114+28.4%
1970 317,296+131.4%
1980 494,255+55.8%
1990 602,426+21.9%
2000 681,150+13.1%
2010 717,515+5.3%
2020 725,493+1.1%


The area of modern Sagamihara has been settled since ancient times, and has a number of remains from the Japanese Paleolithic period and Kofun period have been found. It was home to the Yokoyama clan, one of the seven warrior clans of the Musashi region during the early Kamakura period. During the Edo period, the lands around Sagamihara were tenryō territory theoretically administered directly by the Tokugawa Shogunate in Edo; however, in reality, the area was a patchwork of small fiefs held by various hatamoto, as well as exclaves under the control of the Ogino-Yamanaka Domain and Karasuyama Domain.

After the Meiji Restoration, the eastern portion was part of Kōza District, and the western portion was part of Tsukui District. The Kōza District portion was administratively divided into six villages on April 1, 1889 with the creation of the modern municipalities system. The area was the location of extensive training facilities and arsenals of the Imperial Japanese Army during the 1930s. These villages were merged on April 29, 1941, together with neighboring Zama Town to create Sagamihara Town. At the time of its formation, it was the largest town in Japan in terms of area.

On September 1, 1948, Zama was administratively separated into Zama Town. The remaining portion became Sagamihara City on November 20, 1954. The city population had grown steadily, partly due to local industrial development, and partly due to the city's excellent transportation infrastructure connecting it to Yokohama, Tokyo and Hachiōji. It was designated a core city with increased autonomy in 2003.

On March 20, 2006, Sagamihara absorbed the towns of Tsukui and Sagamiko (both from Tsukui District). The merged city consisted of two geographically separate areas, as two other towns of Tsukui District (Fujino and Shiroyama) elected to remain separate. A further merger on March 11, 2007, joined Fujino and Shiroyama with Sagamihara, thus geographically unifying the city, and dissolving former Tsukui District. In 2007, the population of Sagamihara exceeded 700,000. In 2010, Sagamihara was redesignated as a government ordinance city and split into three wards Midori-ku, Chūō-ku, and Minami-ku.

On July 25, 2016, 19 people were killed and 26 injured in a mass stabbing incident at a disabled care home in the city by Satoshi Uematsu, the perpetrator.[6]


Sagamihara has a mayor-council form of government with a directly elected mayor and a unicameral city council of 49 members. Sagamihara contributes eight members to the Kanagawa Prefectural Assembly. In terms of national politics, the city is divided between the Kanagawa 14th district and Kanagawa 16th district of the lower house of the Diet of Japan.


In terms of economy and geography such as railroads and roads, Sagamihara has stronger ties with Tokyo than other cities in the prefecture, especially with the Tama area such as Machida and Hachioji. In addition, it is positioned by the national government as the core of the southwestern part of the Tokyo metropolitan area. However, due to the successive withdrawal of large factories in the city, the aspect of Sagimahara as a commuter town has become stronger, and the percentage of commuters to work and school in Tokyo in 2015 was 24.6%.


  • Azabu University
  • Sagami Women's University
  • Izumi Junior College
  • Sagamihara has 13 public high schools and one combined middle/high school operated by the Kanagawa Prefectural Board of Education, and the prefecture also operates two special education schools for the handicapped. There are also two private high schools.


Sagami-Ono Station Square


JR EastYokohama Line

JR EastSagami Line

JR EastChūō Main Line

Odakyu Electric RailwayOdakyu Odawara Line

Keio CorporationSagamihara Line

  • Hashimoto


Local attractions[edit]


Sister cities[edit]

Notable people from Sagamihara[edit]


  1. ^ "Sagamihara city official statistics" (in Japanese). Japan.
  2. ^ "Overview of Sagamihara City" (in Japanese). Japan: Sagamihara City. Retrieved May 5, 2017.
  3. ^ Merger proposal (in Japanese) (Translate to English: Google, Bing, Yandex)
  4. ^ "Sagamihara climate: Temperature Sagamihara & Weather By Month". en.climate-data.org. Retrieved October 16, 2023.
  5. ^ "Sagamihara (Kanagawa , Japan) - Population Statistics, Charts, Map, Location, Weather and Web Information". www.citypopulation.de. Retrieved October 16, 2023.
  6. ^ McCurry, Justin (July 26, 2016). "Japan Knife Attack: Stabbing at Care Centre Leaves 19 Dead and Dozens Wounded". The Guardian. Guardian News and Media. Retrieved July 26, 2016.

External links[edit]