Part of our guide to international schools in Tokyo. Last verified: November 2026.
Which international schools are in Koto and east Tokyo? Koto ward has three schools on the Tokyo government’s international schools portal: K. International School Tokyo (KIST), an IB and IGCSE school in Shirakawa; Tokyo YMCA International School, an American-curriculum school in Toyo; and India International School in Japan (IISJ), a CBSE school in Sengoku. Next door in Edogawa, Global Indian International School (GIIS) runs several campuses. Fees are noticeably lower than in central Tokyo: from about ¥0.6 million a year at IISJ to about ¥3.0 million at KIST.
Details below come from the Tokyo Metropolitan Government’s international schools portal and the schools’ own websites.
At a glance
| School | Location | Grades | Curriculum | Tuition |
|---|---|---|---|---|
| K. International School Tokyo | Shirakawa, Koto | Kindergarten to Grade 12 | IB PYP and DP; IGCSE | ¥2,850,000–¥3,020,000 (2026–27 schedule) |
| Tokyo YMCA International School | Toyo, Koto | K5 to Grade 12 | US Common Core, AP | ¥2,148,000 (portal) |
| India International School in Japan (Tokyo) | Sengoku, Koto | Kindergarten to Grade 12 | CBSE (Indian); Montessori kindergarten | ¥600,000–¥1,200,000 |
| Global Indian International School | Nishikasai and other campuses, Edogawa | Early years to Grade 12 | CBSE; IB and Cambridge pathways | Check with school |
“Portal” figures come from the Tokyo Metropolitan Government’s international schools portal, which notes that some fees may not be listed.
K. International School Tokyo (KIST)
- Location: 1-5-15 Shirakawa, Koto, near Kiyosumi-Shirakawa.
- Curriculum: IB Primary Years Programme, IGCSE (Pearson Edexcel) and the IB Diploma. Instruction is in English, with Japanese.
- Size: capacity of 720, about two classes per grade.
- Fees: 2026–27 tuition of ¥2,850,000 (Grades 1–9) to ¥3,020,000 (K1–K3), plus a ¥200,000 building maintenance fee and one-time fees for new students. See our fees comparison.
- School year and ages: September to August, with a July 31 birthday cut-off, which is different from most Tokyo international schools.
- Admissions: applications for entry from August to October 2027 opened on October 17, 2026. Applicants take an entrance examination with an interview. A school bus runs.
Tokyo YMCA International School
- Location: 2-2-20 Toyo, Koto, near Toyocho Station on the Tozai Line.
- Grades: K5 (age 5 by September 1) to Grade 12, coeducational, about one class per grade.
- Curriculum: US Common Core and AP; WASC accredited.
- Fees (portal): ¥2,148,000 a year at every level, one of the lower tuition rates among English-medium schools in Tokyo.
- Admissions: academic records, an English assessment, an interview and placement tests. Students entering Grades 6–9 with no English aren’t accepted. A school bus is available.
India International School in Japan (IISJ Tokyo)
- Location: 3-1-4 Sengoku, Koto.
- Curriculum: the Indian CBSE curriculum, with a Montessori kindergarten and an emphasis on science, maths and IT. Japan’s education ministry designation allows graduates to apply to Japanese universities.
- Fees: ¥600,000 a year for kindergarten to junior high and ¥1,200,000 for high school, among the lowest in Tokyo.
- School year: April to March.
- Admissions: interviews and exams; priority goes to Indian nationals and other foreign nationals, and Japanese nationals must be returnees. A school bus is available.
Global Indian International School (GIIS), Edogawa
- Locations: four campuses in Edogawa ward. The flagship Nishikasai campus (8-3-13 Nishikasai) is the CBSE hub; the Higashi Kasai campus is the hub for IB and Cambridge programmes.
- Note: GIIS isn’t listed on the Tokyo government portal, and published details on grades and fees vary between sources. Ask the school for its current fee schedule and which grades each campus teaches.
Also in east Tokyo
- Laurus International School of Science has a campus in Tsukishima (Chuo ward). See our Minato guide for its main campus.
- Weekend activities: teamLab Planets in Toyosu and the Subway Museum in Kasai are both in this part of Tokyo.
Living in east Tokyo with school-age children
- Fees: two of the schools here have some of the lowest fees in the city. See our most affordable schools guide.
- Commute: the Tozai, Hanzomon and Toei Oedo lines link much of Koto and Edogawa to central Tokyo; check school bus routes before choosing a home.
- Different calendars: KIST runs September to August and IISJ April to March, which can matter if you’re moving mid-year.
FAQ
What’s the cheapest international school in east Tokyo?
India International School in Japan lists ¥600,000 a year up to junior high. Among English-medium schools with an American curriculum, Tokyo YMCA International School lists ¥2,148,000.
Is there an IB school in Koto?
Yes. KIST offers the IB Primary Years Programme and the IB Diploma. See our IB schools comparison.
Sources and official information
- Tokyo Metropolitan Government — International Schools Portal: Koto
- K. International School Tokyo — School fees and Applications
- India International School in Japan — Tuition and fees
- Global Indian International School — Nishikasai campus
School details change. Always confirm with the school. TokyoParents has no commercial relationship with any school listed. See our editorial policy.
Featured image: Kiba Park – Koto, Tokyo, Japan – DSC05425 by Daderot, dedicated to the public domain (CC0), via Wikimedia Commons.
