· updated monthly
The five schools Tokyo parents researched most this year, chosen from the 72 international schools in the city. Ranked by how many families opened each school’s profile and spent time reading it between July 2025 and June 2026, then the full picture on curricula, class sizes and fees.
The 2026 ranking
Ranked purely by parent interest — the number of families who opened each school’s profile and spent time reading it between July 2025 and June 2026.
Rugby School Japan (RSJ) is a premier British international day and boarding school situated in the Kashiwanoha Smart City of Chiba Prefecture, located 30 minutes from central Tokyo via the Tsukuba Express Line. Serving a co-educational student body aged 11–18 (Years 7–13), RSJ delivers a rigorous British curriculum. This academic pathway leads to IGCSEs for Years 10–11 and A Levels for Years 12–13. Pupils are further challenged and supported through the Extended Project Qualification (EPQ), which facilitates independent, deep-dive research into specialised subjects of interest. The school is defined by its commitment to the development of "The Whole Person." Guided by the belief that social, recreational, and cultural engagement is essential to individual growth, RSJ provides a vast array of co-curricular enrichment. This includes professional-level programmes in music, drama, dance, coding, and debating, alongside elite sports clubs, outdoor education, and diverse academic and cultural societies. As it enters its third academic year with a thriving community of 300+ pupils, RSJ offers flexible residency options including Day, Weekly, and Full Boarding, fostering a global community within a state-of-the-art Japanese setting.
The American School in Japan (ASIJ), founded in 1902, is a non-profit, co-educational school in Tokyo serving students from nursery through high school on two campuses. Younger children attend the Early Learning Center in Roppongi (nursery–kindergarten), while the main campus in Chofu serves kindergarten–grade 12 next to Nogawa Park. ASIJ follows an American-model curriculum and offers Advanced Placement (AP) courses, including AP Capstone. High school students also have structured support through a seminar program and grades 11–12 can complete a two-year Deep Learning Signature Program. Beyond classes, students can choose from 170+ co-curricular options, including VEX Robotics, iGEM, Model UN and extensive arts and athletics opportunities.
India International School in Japan (IISJ) was established in 2004 and provides education from Kindergarten through Grade 12. The school follows the Indian Central Board of Secondary Education (CBSE) curriculum, with students sitting for CBSE Board Examinations in Grades 10 and 12. IISJ also offers the International Baccalaureate Diploma Programme for senior secondary students and publishes IB programme information on its website. The Tokyo campus relocated to a new building in spring 2023, which includes physics and chemistry laboratories, a library, a cafeteria, a gymnasium and a soccer field. Instruction is delivered in English, and additional languages taught as subjects include Japanese, Hindi, Tamil, French, and Nepali. IISJ provides a school bus service in Tokyo. After-school activities listed by the school include Model United Nations, STEM Club, Student Council and sports such as basketball and cricket.
Yokohama International School (YIS) opened on 27 October 1924 and is located at 2-100-1 Kominato-cho, Naka-ku, Yokohama. Students learn through the International Baccalaureate Primary Years Programme (PYP) in the Early Learning Center and Elementary School and the Middle Years Programme (MYP) in Grades 6–8. In the Early Learning Center (ages 3–5), learning is play-based, rooted in the PYP and inspired by Reggio Emilia. YIS also runs a Japanese Culture Program that spans the full student journey and connects experiences to IB learning, including the Diploma Programme. Beyond classes, the school highlights athletics and activities supported by facilities such as a 25-meter heated indoor swimming pool, an artificial turf field and a double gymnasium.
Tokyo International School (TIS) is a non-profit IB World School in Minami Azabu, Minato-ku, with over 460 students representing 70+ nationalities. TIS delivers the IB Primary Years Programme (Kindergarten–Grade 5), serving about 230 students aged 5–11 and the IB Middle Years Programme (Grades 6–10), serving about 160 students aged 11–16. The school also offers the IB Diploma Programme, with Grade 11 introduced from the 2025–26 school year. Japanese is taught alongside English (the language of instruction). TIS highlights its central Tokyo location and uses nearby parks, museums and landmarks as part of school life, alongside trips such as residential visits to Hakuba, Nara and Kanazawa, plus a Grade 10 overseas trip to Thailand.
What’s on offer
The mix of programmes and teaching languages across all 72 schools. Many offer more than one curriculum, so totals run higher than the school count.
Number of schools teaching each curriculum.
Number of schools teaching in each language.
Size & classes
School size and class size shape day-to-day experience as much as curriculum does.
Schools grouped by total enrolment.
Average school size is 519 students · based on the 58 schools that report enrolment.
Schools grouped by typical class size.
Average class size is 16.5 students · based on the 56 schools that report it.
What it costs
Fees shown are one year for a 12-year-old (or the closest age available), excluding one-time enrolment costs.
Across the 66 schools that publish a price for a 12-year-old. All figures in JPY.
How many schools sit in each annual-fee range.
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