St. Mary's International School
- American
- IB Diploma
Per yearabout USD 18.1K–19.3K
JPY 2.86M–3.05M · 2026-27 school year · Source: school website (checked 2026-10-28)
About
St. Mary's International School is a non-profit, all-boys international school in Setagaya, Tokyo, serving elementary through high school. It has a Catholic-based religion program and offers the IB Diploma.
Key facts
Source: Read from the school's website
Curriculum
American · IB Diploma
Ages
Ages 5–18
Students
1,000
Language
English
Type
International school
Fee level
- Nationalities
- 60
- Founded
- 1954
- Gender
- Boys
- Religion
- catholic
- Ownership
- Non-profit
- Entry process
- Transcripts, Standardized test, Screening test, Interview
Fees
Source: Read from the school's website
2026-27 school year
| Grade | Per year |
|---|---|
| Elementary School | JPY 2,860,000≈ USD 18.1K |
| Middle School | JPY 2,970,000≈ USD 18.8K |
| High School | JPY 3,050,000≈ USD 19.3K |
Show fee charts
| per year | |
|---|---|
| Elementary School | JPY 2,860,000 (about USD 18.1K) |
| Middle School | JPY 2,970,000 (about USD 18.8K) |
| High School | JPY 3,050,000 (about USD 19.3K) |
Source: school website (smis.ac.jp) · checked 2026-10-28 · ECB reference rate (2026-11-06)
| min | max | |
|---|---|---|
| St. Mary's International School (this school) | JPY 2,860,000 (about USD 18.1K) | JPY 3,050,000 (about USD 19.3K) |
| The Innovation Fellowship (TIF) | JPY 2,250,000 (about USD 14.2K) | JPY 2,250,000 (about USD 14.2K) |
| Aoba-Japan International School | JPY 1,650,000 (about USD 10.4K) | JPY 2,862,000 (about USD 18.1K) |
| Tokyo International School | JPY 3,100,000 (about USD 19.6K) | JPY 3,400,000 (about USD 21.5K) |
| Global Indian International School, Tokyo | JPY 1,150,449 (about USD 7.27K) | JPY 1,695,435 (about USD 10.7K) |
| Musashi International School Tokyo | JPY 1,688,000 (about USD 10.7K) | JPY 2,025,000 (about USD 12.8K) |
Source: school website (smis.ac.jp) · checked 2026-10-28 · ECB reference rate (2026-11-06)
One-off costs
- Application fee
- JPY 50,000
- Enrolment fee
- JPY 400,000
- Capital levy
- JPY 1,000,000
- Deposit
- JPY 300,000
- Bus
- JPY 310,000
As published by the school. Amounts change with the school year and exchange rates; please confirm with the school before applying. Converted amounts use the reference rate of the date shown. ECB reference rate (2026-11-06). Source: school website (checked 2026-10-28)
Curriculum and academics
Source: Read from the school's website
Curricula, explainedIB DP (Diploma) · American curriculum
The IB's four programmes
Schools often run only some of the four. Highlighted boxes are the ones this school offers.
- IB PYPNot here
Early years to primary · Ages 3–12
The IB's primary programme. Children learn through questions and units of inquiry rather than separate subjects.
- IB MYPNot here
Middle years (ages 11–16) · Ages 11–16
The IB's middle-years programme: eight subject groups taught with links between them, ending with a personal project.
- IB DP (Diploma)Offered
Last 2 years of school · Ages 16–19
The IB's university-entrance qualification — what people usually mean by "the IB". Six subjects plus the Extended Essay, TOK and CAS, scored out of 45.
- IB CP (Career-related)Not here
Last 2 years of school · Ages 16–19
The IB's career-related route for the same ages as the DP: at least two DP courses plus a career-related study chosen by the school.
Last two years: DP or CP
American curriculum
Kindergarten to Grade 12 · Ages 5–18
Grade-by-grade like US schools; students graduate by earning course credits, often with AP courses in high school.
Ages are the usual bands; schools can differ.Curriculum basics guide
Strengths
- Academics
- Sport
- Performing arts
- Visual arts
Student support
Source: Read from the school's website
- English support (EAL)
- Yes
- Learning support (SEN)
- Basic
- Nurse on site
- Yes
- Device policy
- iPad programme
- School bus
- Yes
Campus and school life
Source: Read from the school's website
Facilities
- Library
Sports
- Athletics
- Swimming
Arts
- Visual arts
- Bands
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Accreditation and memberships
Source: Read from the school's website
- Accreditations
- CIS, WASC, IB
- Memberships
- COIS, EARCOS, JCIS
More details
Source: Read from the school's website
Diving deeper
Uniform
Students wear uniforms from an approved vendor, including a blue polo with logo, all-black shoes and black socks. Wheeled bags are not permitted.
- Blue polo
- Black shoes
- Black socks
School website · Checked 2026-11-06
Governance and ownership
A non-profit school corporation supervised by the Tokyo Metropolitan Government. A Board of Directors, Board of Trustees and Statutory Auditors govern the school.
School website · Checked 2026-11-06
Academics
Curriculum
Elementary follows US Common Core and NGSS standards, with a Japanese language program, technology integration and specials such as art, music and swimming.
- Common Core
- NGSS
- AERO
- Japanese Language Program
- Second Step
School website · Checked 2026-11-06
Wellbeing
Social and emotional learning (SEL)
Uses the Second Step program for self-awareness, self-management, social skills and decision-making, including bullying prevention and child protection units.
School website · Checked 2026-11-06
Special educational needs (SEN)
Learning Support Coordinators help students with learning difficulties, but the school does not serve students with serious disabilities; all students are in mainstream classes.
School website · Checked 2026-11-06
English as an additional language (EAL)
English Language Support runs from RP to Grade 8 for students whose first language is not English, aiming to integrate them into mainstream classes.
School website · Checked 2026-11-06
Mental wellbeing
School counselors offer individual and small-group counseling, classroom lessons, parent consultations, referrals to outside services and transition programs.
School website · Checked 2026-11-06
Safeguarding
The school has a designated child protection team and reporting channels including an online system and QR code. Staff, faculty and parents receive regular training.
School website · Checked 2026-11-06
Parent experience
History
Founded in 1954, the school moved to its current Setagaya ward campus in 1971.
School website · Checked 2026-11-06
Facilities
Academic facilities
The elementary library provides digital resources such as Destiny, BrainPOP, PebbleGo and TumbleBooks.
- Library
- Destiny Discover
- BrainPOP
- PebbleGo
- TumbleBooks
School website · Checked 2026-11-06
Extra-curricular activities
Arts and creative
The school highlights arts programs, including visual arts and school bands.
- Visual Arts
- Bands
School website · Checked 2026-11-06
Languages
Language provision
Japanese language classes are offered to Grades 2 to 5 in three ability levels, alongside English language support.
- Japanese
- English
School website · Checked 2026-11-06
Admissions
Admissions
Admissions begin with an inquiry. Learning Support Coordinators take part in screening for RP and Grade 1 admissions.
School website · Checked 2026-11-06
Location
Source: Read from the school's website
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