Trinity International School is a kindergarten to grade 12 American curriculum school on Sukhumvit, founded in 2003 with the aim of making an international education more affordable for families in the area. It follows the California state framework within a Seventh day Adventist Christian ethos, and it features among the more accessible options on our Bangkok city hub. The lower fee point is its defining feature in a city where international schooling can be expensive.
This is an independent reference page. No school pays to be listed on GlobalSchoolGuide, and the facts below were researched from the school and public sources at the time of writing, with anything unconfirmed marked not published.
At a glance
Curriculum and academics
Trinity teaches an American curriculum drawn from California state standards, leading to a US High School Diploma, with English as the language of instruction throughout. The programme is delivered within a Seventh day Adventist Christian framework, so values and pastoral care sit alongside the academic work, which appeals to families who want a faith based environment.
As a smaller, value focused school, the emphasis is on solid core academics and a supportive setting rather than an extensive menu of advanced courses, so families aiming at highly selective universities should ask directly about the senior options available. Our American curriculum guide explains how the High School Diploma works and how it compares with the IB and British routes.
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Trinity International School fees
Trinity sits among the more affordable schools on our Bangkok international school fees guide, which is the heart of its appeal for families who want an English medium American programme without premium fees. Tuition still rises with each grade, so treat any single figure as indicative and confirm the current schedule with admissions before you budget.
Plan for the usual Bangkok extras alongside tuition: a registration fee, a deposit, uniform, examination entry in the high school and any optional transport. Our fee calculator helps turn the headline tuition into a realistic annual total once those line items are added.
Admissions
The academic year follows the American calendar and begins in August, so the main application window runs through the preceding spring and summer, with through year entry where places allow. Assessment is age appropriate and draws on previous school records, with English readiness checked for older applicants and transcripts reviewed for high school entrants.
As an affordable option, Trinity sees steady interest from local and expatriate families alike. The practical first steps are to contact the admissions office, share recent reports and arrange a visit to see the campus and discuss the Christian ethos.
Location and who goes there
Trinity sits on Sukhumvit Soi 36 in the Khlong Tan area of the Khlong Toei district, a central position close to the Thong Lo and Phra Khanong neighbourhoods and within reach of the BTS on the main Sukhumvit line. For families living along the central Sukhumvit corridor it is a straightforward daily drop off, which adds to its practicality alongside the lower fees.
The community is a mix of expatriate and local families drawn by the affordable American programme and the faith based setting. For how this central district compares with the rest of the city and the schools nearby, return to the Bangkok city hub.
Reviews
We do not yet have verified parent reviews for this school. GlobalSchoolGuide is independent and no school pays to be listed, so we publish reviews only once we can confirm they come from real families. If your child attends or has attended Trinity International School, we would value your first hand account. Share your experience through the school reviews hub and help the next relocating family decide with better information.
Frequently asked questions
How much are Trinity International School fees?
Trinity sits among the more affordable schools on our Bangkok fees guide, which is the heart of its appeal. Confirm current rates with admissions and budget for a registration fee, a deposit, uniform, high school examination entry and any optional transport.
What curriculum does Trinity International School follow?
Trinity follows an American curriculum based on California state standards, leading to a US High School Diploma, taught in English within a Seventh day Adventist Christian framework.
Is Trinity International School a Christian school?
Yes. Trinity is a Seventh day Adventist Christian school, so a faith based ethos and pastoral care sit alongside the academic programme. Confirm what this means day to day directly with the school.
When do Trinity International School applications open?
The school follows the American calendar and starts in August, so most families apply through the preceding spring and summer, with through year entry where places allow and age appropriate assessment.
Where is Trinity International School located?
Trinity is on Sukhumvit Soi 36 in the Khlong Tan area of the Khlong Toei district, close to Thong Lo and Phra Khanong and within reach of the BTS Sukhumvit line.
