St. Marks Australian International School is a AUSMAT / Cambridge IGCSE / AS Level / Singapore Math & Science school in Bangkok, Thailand. Founded in 1999. It serves 900 students for students aged 3–18. Annual tuition ranges from $7,998 to $12,687 USD.
Location & Getting There
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Key Details
Academic Performance
Key facts
About
St. Marks Australian International School, founded in 1999, is the first Australian international school in Thailand, offering a trilingual education in English, Mandarin, and Thai within a caring Christian environment. The school combines the best of Australian and Singaporean curricula with an advanced focus on Mathematics and Science, and a teacher-to-student ratio of 1:5. Students consistently achieve outstanding Cambridge IGCSE results and have earned scholarships to prestigious universities worldwide.
School data verified by NanaSays. Last updated: April 2026.
Why Families Choose
St. Mark's was the first Australian international school in Thailand, established in 1999. It offers a bilingual curriculum blending Australian and Singaporean education systems in primary, transitioning to Cambridge IGCSE and AUSMAT in senior years. The AUSMAT programme is conducted in official partnership with the Western Australian Government, enabling students to earn a WACE certificate and ATAR score for global university admission.
University Destinations
Fees & Financials
| Grade / Year | Annual Fee |
|---|---|
| Year 1-6 | THB 380,210~$ 10,417 |
| Year 7-10 | THB 417,640~$ 11,442 |
| Kindergarten | THB 285,650~$ 7,826 |
| Year 11 ATAR | THB 453,100~$ 12,414 |
| Year 12 ATAR | THB 230,000~$ 6,301 |
| Pre-Prep & Prep | THB 309,290~$ 8,474 |
Conversions to USD use exchange rates as of April 2026.
Original currency: THB 285,650 - 453,100. Application fee: $196.
Admissions Process
- 1Schedule a school visit (Monday to Friday, 8:00 AM – 2:00 PM). 2. Submit application form, provide required documents, and pay non-refundable application fee of THB 7,000. 3. Student assessments in English, Mathematics, and Mandarin (where applicable). 4. Principal reviews application and assessment outcomes. 5. Admissions notifies parents of decision within 7 days. 6. Upon acceptance, families must settle fee payment by invoice due date.
Admissions Details
If a class is full, families can opt to be placed on a waiting list. A refundable deposit of THB 50,000 is required to secure a place. Priority is given to families who already have children enrolled. The deposit is refundable upon written request, which also removes the child from the waiting list.
School Day
Kindergarten: 8:00 am - 1:00 pm (after-school care option ends at 3:10 pm). Pre-Prep to Year 12: 8:00 am - 3:10 pm.
Student Life
Annual tuition fees are inclusive of snacks and lunch.
Facilities & Programmes
Student Demographics
Curriculum by Stage
| Stage | Curriculum | Notes |
|---|---|---|
| Secondary (IGCSE) | IGCSE | 97% A*-C grade; 70% A*/A; 30% A* since 2017. Top in Thailand for IGCSE Physics; Outstanding Cambridge Learners for IGCSE Chemistry. |
| High School (Years 11-12) | A-Levels | Perfect Scores for AS Level Physics reported. AUSMAT program also offered for Years 11-12. |
School Background
Licensed by the Government of Western Australia Ministry of Education to deliver the AUSMAT programme. The WA School Curriculum and Standards Authority oversees the programme's quality.
Christian