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Asia · rank 10 by capacity in service

Data centers in Japan

242 facilities across 111 cities and 87 operators, with 1 GW in service. Every value comes from a named public page, and capacity that is announced or under construction is never merged into what is running.

242

Facilities

111

Cities

1 GW

In service

2.1 GW

Announced or building

Country view

Japan

242 facilities across 111 cities. Divisions are shaded by the number of facilities recorded in each.

KagoshimaŌitaFukuokaSagaNagasakiKumamotoMiyazakiTokushimaKagawaEhimeKōchiShimaneYamaguchiTottoriHyōgoKyōtoFukuiIshikawaToyamaNiigataYamagataAkitaAomoriIwateMiyagiFukushimaIbarakiChibaTokyoKanagawaShizuokaAichiMieWakayamaŌsakaOkayamaHiroshimaHokkaidōOkinawaGunmaNaganoTochigiGifuShigaSaitamaYamanashiNaraKitakyushu, Japan: 3 facilities; 1 with reported capacityFuchū, Japan: 2 facilities; 2 with reported capacityTama, Japan: 4 facilities; 2 with reported capacityInzai, Chiba, Japan: 1 facility; 1 with reported capacityKawasaki, Japan: 5 facilities; 1 with reported capacityMitaka, Japan: 4 facilities; 1 with reported capacityNagoya, Japan: 5 facilitiesChiyoda-Ku, Tokyo, Japan: 1 facilityKitakyūshū, Japan: 1 facilityOsaka, Osaka-Shi, Japan: 1 facilityShiroi, Chiba Prefecture, Japan: 1 facilityTama, Tokyo, Japan: 1 facilityOsaka, Japan: 29 facilities; 9 with reported capacityTokyo, Japan: 18 facilities; 6 with reported capacityInzai City, Japan: 12 facilities; 5 with reported capacityKoto City, Japan: 7 facilities; 2 with reported capacitySeika, Japan: 4 facilities; 1 with reported capacityShiroi, Japan: 3 facilities; 2 with reported capacityMinato City, Japan: 3 facilities; 1 with reported capacityIshikari, Japan: 3 facilities; 2 with reported capacityChiyoda, Japan: 5 facilities; 1 with reported capacityYokohama, Japan: 7 facilitiesShinagawa-Ku, Japan: 5 facilitiesBunkyo-Ku, Japan: 3 facilitiesFuchu, Japan: 3 facilitiesKoto-Ku, Japan: 3 facilitiesShika, Japan: 3 facilitiesChiyoda-Ku, Japan: 2 facilitiesTokyo, Koto-Ku, Tokyo, Japan: 1 facilityInzai, Japan: 8 facilities; 458 MW reported; 318 MW in service; 67 MW under construction; 73 MW plannedSakai, Japan: 1 facility; 400 MW reported; 0 MW in service; 0 MW under construction; 400 MW planned
Reported city power
1 GW and above
200 MW – 1 GW
50 – 200 MW
10 – 50 MW
under 10 MW
How a bubble is drawnReported, coloured by stage:
In serviceUnder constructionPlannedStage not specified
Dashed edge: sized from a derived figure, not a reported oneSmall dot: city located and counted96 cities shown

Bubbles are placed at the city centroid, not at a facility address: the catalogue releases location at city granularity. Bubbles with a solid edge are sized from reported capacity; those with a dashed edge from a figure derived off the facility’s own reported dimensions. A derived figure sizes a bubble and nothing else — it enters no total, ranking, or statistic anywhere on this site. Planned capacity is not operating capacity. The map plots 8,944 facilities across 3,987 cities; a campus is plotted once, at the campus. Division shading covers the 8 of 242 facilities whose recorded region matches a division name. An unshaded division means the catalogue records no matching region for its facilities, not that it holds none — every facility is still plotted by city.

By development stage

1 GW
In service
769 MW
Under construction
1.3 GW
Planned
0 MW
Stage not specified

By facility count: 197 in service, 24 under construction, 20 planned, 1 stage not specified. 64 of the 242 report a capacity figure.

Data center cities in Japan

23 cities hold 3 or more catalogued facilities or a published capacity. A further 76 facilities sit in 63 locations with one or two each, all on the map above. 17 facilities have no published city.

CityFacilitiesIn serviceBuilding or plannedReported capacity
Osaka, Osaka-Shi30237—
Tokyo, Koto-Ku, Tokyo19181—
Inzai City12101—
Inzai, Chiba963458 MW
Koto City752—
Yokohama761—
Fuchu541—
Tama, Tokyo541—
Kawasaki550—
Chiyoda550—
Nagoya550—
Shinagawa-Ku550—
Kitakyushu431—
Seika404—
Shiroi, Chiba Prefecture413—
Mitaka440—
Minato City321—
Ishikari321—
Bunkyo-Ku330—
Koto-Ku330—
Shika330—
Chiyoda-Ku, Tokyo330—
Sakai101400 MW

Reported capacity is shown for the cities whose figures the release publishes; a dash means the city’s capacity is not published here, not that it has none.

Free sample records

What a record in Japan looks like

One of the ten free sample records is here, shown with retained supporting links where available.

IDC Frontier · Fuchū, Japan

operating

7 of 13 attributes
Facility power
50 MW
Cooling
chilled water (water-cooled wall-blowing air conditioning with air-cooled chiller and turbo refrigerator)
Liquid cooling
no
Rack density
15 kW/rack
Racks
4,000
Year
2020

+1 more attribute on this record

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