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Iruma (入間市, Iruma-shi) is a city located in Saitama Prefecture, Japan. As of 1 February 2016, the city had an estimated population of 148,460, and a population density of 3,320 persons per km². Its total area is 44.69 square kilometres (17.25 sq mi).


Iruma City Hall
Iruma City Hall
Flag of Iruma
Official seal of Iruma
Location of Iruma in Saitama Prefecture
Location of Iruma in Saitama Prefecture
Iruma is located in Japan
Location of Iruma in Saitama Prefecture
Coordinates: 35°50′8.9″N 139°23′28.1″E / 35.835806°N 139.391139°E / 35.835806; 139.391139Coordinates: 35°50′8.9″N 139°23′28.1″E / 35.835806°N 139.391139°E / 35.835806; 139.391139
PrefectureSaitama Prefecture
 • Total44.69 km2 (17.25 sq mi)
 (February 2016)
 • Total148,460
 • Density3,320/km2 (8,600/sq mi)
Time zoneUTC+9 (Japan Standard Time)
- TreeZelkova serrata
- FlowerCamellia sinensis
- BirdEurasian skylark
Phone number04-2964-1111
Address1-16-1toyooka, Iruma-shi, Saitama-ken 358-8511



Located in the Satama Highlands of far southern Saitama Prefecture, Iruma is bordered by Tokyo to the south. The Iruma River flows through the city.

Surrounding municipalitiesEdit


Iruma developed as a series of three post towns on the Nikkō Wakiōkan highway during the Edo period. The town of Toyooka and villages of Kaneko, Miyadera, Fujisawa and Higashikaneko were created within Iruma District, Saitama with the establishment of the municipalities system on April 1, 1889. The Imperial Japanese Army Air Academy established an airfield in the area in 1938, which later developed into Iruma Air Base. On April 1, 1954 Higashikaneko became Seibu Town. On September 30, 1956, Toyooka, Kaneko, Miyadera, Fujisawa and Seibu merged to form the town of Musashi. Musashi was elevated to city status on November 1, 1966, becoming the city of Iruma. In 2017 Japan became the first country ever to elect an openly transgender man to any public office when Tomoya Hosoda was elected as a councillor for the city of Iruma.[1][2]


Iruma has a mixed economy with numerous industrial parks for light manufacturing and also serves as a regional commercial center. Due to its location, it is also a bedroom community for people commuting to the Tokyo metropolis for work. In terms of agriculture, Iruma and neighboring Sayama are famous for the green tea they produce.


  • Musashino Academia Musicae – Iruma campus
  • Iruma has 16 public elementary schools, 11 public and one private middle school, and two public and four private high schools.


Military facilitiesEdit

Twin towns and sister citiesEdit

Iruma is twinned with:

Local attractionsEdit

  • Iruma City Museum

Noted people from IrumaEdit


  1. ^ Chloe Farand. "Japan becomes first country in the world to elect a transgender man to a public office". The Independent. Retrieved 2017-03-18.
  2. ^ "Japan just elected its first trans man into public office · PinkNews". Retrieved 2017-03-18.
  3. ^ 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.

External linksEdit