International School Bangkok is a American Diploma / Advanced Placement / IB Diploma school in Nonthaburi, Thailand. Founded in 1951. Annual tuition ranges from $17,920 to $32,536 USD.
Location & Getting There
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Key Details
Scholarships Available
ISB does not publicly advertise scholarship programs.
Key facts
About
International School Bangkok (ISB), founded in 1951, is the premier international school in Thailand and a benchmark for educational excellence in Asia. As an independent, not-for-profit school located in the Nichada Thani community just outside Bangkok, ISB serves Pre-Kindergarten through Grade 12 with an American educational philosophy integrated with US, AP, and IB frameworks. With over 60 nationalities represented, ISB offers a personalized, inquiry-based curriculum that prepares students for top universities worldwide.
School data verified by NanaSays. Last updated: April 2026.
Why Families Choose
Thailand's first international school, founded in 1951, located in the gated Nichada Thani community. Offers a U.S.-based curriculum integrated with IB Diploma and AP courses. Emphasizes small class sizes in lower elementary grades. WASC-accredited. Door-to-door air-conditioned bus service operated with professional supervision. Strong programs in STEM, performing arts, visual arts, and outdoor education.
Fees & Financials
| Grade / Year | Annual Fee |
|---|---|
| High | THB 1,162,000~$ 31,836 |
| Middle | THB 1,104,000~$ 30,247 |
| Elementary | THB 985,000~$ 26,986 |
| Pre-Kindergarten | THB 640,000~$ 17,534 |
Conversions to USD use exchange rates as of April 2026.
Original currency: THB 640,000 - 1,162,000. Application fee: $132.
Admissions Process
- 1Book a campus visit or virtual tour via ISB's admissions portal. 2. Complete the online application via ISB's OpenApply platform, submitting academic records, birth certificate or passport, immunization records, and teacher recommendations, along with a non-refundable application fee of THB 4,700. 3. Depending on grade level, students may be required to undergo assessments or interviews for placement determination. 4. The admissions committee reviews applications holistically and communicates decisions via email. 5. To secure a place, families must pay a non-refundable registration fee of THB 260,000 within the specified timeframe.
Admissions Details
ISB operates a waitlist system when grade levels reach capacity. Applicants are placed on the waitlist based on the date of application completion and other criteria. The admissions team contacts families as spaces become available.
School Day
Pre-K: 7:35am–1:10pm. Elementary: 7:35am–2:25pm (1:50pm on Wednesdays). Middle School: 7:40am–2:45pm (2:00pm on Wednesdays). High School: 7:45am–2:50pm (2:00pm on Wednesdays).
Student Life
ISB provides on-campus food services. The Grind is open 7:00am–5:00pm and The Coffee Corner 1:30pm–5:00pm. The MS/HS Cafeteria serves breakfast and lunch Monday to Friday, 7:00am–1:00pm. The ES Cafeteria serves a lunch buffet with a variety of meats and a salad bar. Epicure Catering offers fresh, healthy Western and Asian dishes, audited twice yearly for safety following FDA GMP guidelines.
Facilities & Programmes
Wellbeing & Safety
ISB's counseling services address students' academic, social, and emotional needs, providing universal services for all students, targeted small-group support, and intensive interventions for students with higher needs. Counselors work collaboratively with students, parents, and faculty to ensure every student receives appropriate care.
ISB has developed comprehensive safeguarding policies and procedures aligned with international guidance on children's rights, local legislation on child welfare, and global best practices. A dedicated Safeguarding Committee coordinates all child protection efforts across the school, working closely with administration, counselors, and external experts.
Student Demographics
Curriculum by Stage
| Stage | Curriculum | Notes |
|---|---|---|
| High School (Grades 9-12) | IB Diploma | Students may pursue IB Diploma, ISB Diploma, AP courses, or hybrid pathways |
| Early Childhood (Ages 3-5) | American Diploma | Reggio Emilia-inspired, play-based curriculum |
| Middle School (Ages 11-14) | American Diploma | Globally-minded approach with critical thinking, collaboration, and leadership |
| Elementary School (Ages 6-11) | American Diploma | Standards-based curriculum focused on literacy, numeracy, and social-emotional growth |
School Background
Independent and not-for-profit.