Sayama (狭山市, Sayama-shi) is a city located in Saitama Prefecture, Japan. As of 1 January 2021, the city had an estimated population of 149,826 in 69,859 households and a population density of 3100 persons per km².[1] The total area of the city is 45.51 square kilometres (17.57 sq mi).


Sayama City Hall
Sayama City Hall
Flag of Sayama
Official seal of Sayama
Location of Sayama in Saitama Prefecture
Location of Sayama in Saitama Prefecture
Sayama is located in Japan
Coordinates: 35°51′10.7″N 139°24′43.9″E / 35.852972°N 139.412194°E / 35.852972; 139.412194Coordinates: 35°51′10.7″N 139°24′43.9″E / 35.852972°N 139.412194°E / 35.852972; 139.412194
 • MayorTeruo Yagasaki (since April 2012)
 • Total48.99 km2 (18.92 sq mi)
 (January 2021)
 • Total149,826
 • Density3,100/km2 (7,900/sq mi)
Time zoneUTC+9 (Japan Standard Time)
- TreeCamellia sinensis (tea plant)
- FlowerAzalea
- BirdAzure-winged magpie
Phone number04-2953-1111
Address1-23-5 Irumagawa, Sayama-shi, Saitama-ken 350-1380
WebsiteOfficial website


Sayama is located in south-central Saitama Prefecture, on the alluvial lowland of the Iruma River, which flows through the city towards the northeast (toward Kawagoe) . The Japan Air Self-Defense Force's Iruma Air Base is located in the south of the city hall, 90% of which is in Sayama city area (and only 10% in Iruma city area).

Surrounding municipalitiesEdit

Saitama Prefecture


Sayama has a Humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Sayama is 14.3 °C. The average annual rainfall is 1485 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.1 °C, and lowest in January, at around 3.6 °C.[2]


Per Japanese census data,[3] the population of Sayama has increased rapidly from the 1960s.

Population historyEdit

Historical population
YearPop.±% p.a.


During the Kamakura period, the area developed as a post station on the Kamakura Kaidō highway, as the dividing point on the routes to Kōzuke Province and Shimotsuke Province. The town of Irumagawa was established within Iruma District with the establishment of the modern municipalities system on April 1, 1889. On July 1, 1954, Irumagawa merged with the neighboring villages of Mizutomi, Kashiwahara, Okutomi, Hirokane, and Irima to create the city of Sayama.

The city was the location of the Sayama Incident, a 1963 murder and trial which resulted in the false accusation and conviction of an innocent man, a member of the Burakumin minority group, of murder.[4]


Sayama has a mayor-council form of government with a directly elected mayor and a unicameral city council of 22 members. Sayama contributes two members to the Saitama Prefectural Assembly. In terms of national politics, the city is part of Saitama 9th district of the lower house of the Diet of Japan.


Sayama is one of the major industrial centers of Saitama Prefecture, although it is also a bedroom community with over 15% of its population commuting to Tokyo for work. The city, along with neighboring Iruma, is a well known tea growing region, producing Sayama Tea.

Honda assembly plantEdit

Sayama is the location of an automobile assembly plant, which opened in 1964, for Honda/Acura vehicles, currently including the Fit, Honda Odyssey (international), CR-V, and RLX, and in the past the Accord, Prelude, Vigor, Inspire, Legend and Integra.[5][6] The plant was briefly closed, but not damaged, following the March 2011 Tōhoku earthquake and tsunami, and restarted production in April 2011, albeit at lower production levels.[7]

Other businessesEdit

The Lotte candy and food processing company operates a facility in Sayama.[8]

Dai Nippon Printing Company, Ltd. imaging media division operates a large coating facility in the city.

Sankyo Flute Company is located in Sayama.

Sayama Haselfoods is the only baklava manufacturing facility in Japan. Located in Aoyagi, Sayama, Haselfoods also imports food products from the Mediterranean.



Primary and secondary educationEdit

  • Sayama has 15 public elementary schools and eight public middle schools operated by the city government, and four public high schools operated by the Saitama Prefectural Board of Education. In addition, there are one private elementary school, one price junior high school and two private high schools. The prefecture also operates one special education school for the handicapped.



  Seibu Railway - Seibu Shinjuku Line

 Seibu Railway - Seibu Ikebukuro Line


Military facilitiesEdit

Sister citiesEdit

Local attractionsEdit

Hirose bridge, over the Iruma River


The Secom Rugguts rugby union team, and the Saitama Soccer Club of the Kantō Soccer League, are located in Sayama.

In popular cultureEdit

Noted people from SayamaEdit


  1. ^ "Sayama city official statistics" (in Japanese). Japan.
  2. ^ Sayama climate data
  3. ^ Sayama population statistics
  4. ^ "The Sayama Case | IMADR". Retrieved 2012-07-31.
  5. ^ "Honda Worldwide | History". Retrieved 2012-07-31.
  6. ^ "Honda Worldwide | May 17, 2006 "Honda Builds New Automobile Plant in Japan With Annual Production Capacity of 200,000 units"". 2006-05-17. Retrieved 2012-07-31.
  7. ^ "The Assembly Line Is Rolling Again, Tenuously, at Honda in Japan". The New York Times. Retrieved 2013-10-29.
  8. ^ "LOTTE". LOTTE. Retrieved 2012-07-31.
  9. ^ [1] Archived March 16, 2011, at the Wayback Machine
  10. ^ a b "International Exchange". List of Affiliation Partners within Prefectures. Council of Local Authorities for International Relations (CLAIR). Archived from the original on 4 January 2016. Retrieved 21 November 2015.
  11. ^ "JNTO Japan event calendar|contents". Retrieved 2012-07-31.
  12. ^ "Tanabata Festivals in Japan". 2012-04-09. Retrieved 2012-07-31.
  13. ^ "Indoor Snowboarding in Japan". Paul Hartrick. 2008-11-17. Retrieved 2012-07-31.
  14. ^ "Shiori Kazama". Retrieved 2013-10-29.

External linksEdit