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International School Bangkok (ISB)

International School in Bangkok

Verified

Quick answer

International School Bangkok (ISB) is a private not-for-profit PK-12 American school established in 1951 — Thailand's oldest international school. Students follow an American curriculum with both IB Diploma and AP pathways available at high school, drawing from 60 nationalities. Admissions are open; best suited to American-curriculum families wanting AP/IB optionality at the top of Bangkok's price tier.

Key facts

  • Curriculum: American, IB leaving qualifications include IB Diploma, AP.
  • Tuition: $18,000–$30,000/yr published annual range.
  • 60 nationalities expat-heavy mix.
  • Ages: 3-18 age range accepted.
  • Accreditations: WASC, IBO, CIS listed accreditations.
American, IBAges 3-18English$18,000–$30,000/yr(2025-2026)
Est. all-in: $26,200/yr(+9%, modeled)Premium in BangkokOpen admissions
Official website
Students

50

Nationalities

60

Class Size

Not published

Admissions

Rolling

Accreditations

WASC, IBO, CIS

Qualifications

IB Diploma, AP

multi-curriculumamerican-curriculumibpremium-tieropen-admissionsstrong-learning-support

About International School Bangkok (ISB)

International School Bangkok (ISB) is a private, non-profit PK-12 American school in Thailand that has been providing quality education since 1951.

Learning & language support (SEN / EAL)

Special educational needs (SEN)Stated
English as an additional language (EAL)Not published

This school states some support, but key details aren't published — confirm the gaps below before applying.

Why this matters

Special-needs provision at international schools varies widely and is rarely guaranteed by the school itself — and local legal duties differ by country. Confirm what this school provides, in writing, before you commit.

  • Learning support: strong

Not published

  • —Educational-psychologist availability not stated
  • —EAL/ESL support for non-English speakers not stated
  • —In-house specialist staff not listed

Questions to ask the school

  1. Is an educational psychologist on staff or available by referral?
  2. What level of English is required for entry, and what EAL/ESL support is provided for a child still learning English?
  3. Can you support a child with my child's specific need (e.g. dyslexia, ADHD, autism), and have you done so this year? Ask for concrete examples.
  4. Is there an additional fee for learning support or EAL — and how much per year?
  5. Is learning support guaranteed for the full enrolment, or can it be withdrawn later?
Annual fees and costs for International School Bangkok (ISB)
ItemAmount
Annual tuition (USD)$18,000–$30,000
Fee year2025-2026
Est. all-in cost (modeled)how we calculate$26,200(+9%)
Est. first-year total (modeled)$27,700
Cost position in Bangkok97th percentile(premium tier)

Hidden costs & fee notes

One of Thailand's oldest international schools. Capital levy significant. AP and IB Diploma.

Curriculum

American, IB

Leaving qualifications

IB Diploma, AP

Learning support

strong

Recommended neighborhoods

Nichada Thani, Chaengwattana, Muang Thong Thani

Verified: 2026-04-26Data source: manual+webConfidence: highData completeness: 57%2 named sources

At a Glance

Fee Position in Bangkok

Premium
Median
$4,000$18,000–$30,000$33,567

School Profile

AffordabilitySchool SizeDiversitySupport
International School Bangkok (ISB)

Class size: Not published

Student Diversity

60nationalities50 students

Very diverse

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Disclaimer: School profiles are source-backed decision aids, not endorsements or official rankings. Tuition figures are approximate and may not include registration fees, uniforms, transport, or exam costs. Always verify directly with the school before applying. WhereNext is not affiliated with any school listed. This is not admissions consulting, legal advice, or official school placement guidance.