The Eastern Seaboard's largest school — a Catholic-run Thai day school with an English Programme running Kindergarten through Mathayom 2.
| Address | 29 Moo 10, Surasak, Sriracha, Chonburi |
| Founded | 1944 — a Catholic-run Thai day school, part of the Assumption network |
| Enrollment | Roughly 4,200 students, predominantly boys, Kindergarten through Mathayom 6 (Grade 12) |
| Curriculum | Thai national curriculum, with an English Programme (EP) — core subjects taught in English — in every year group up to Mathayom 2 |
| Fees | English Programme runs a fraction of full international-school pricing — indicative low tens of thousands of THB/year; confirm current fees with the school |
| Official website | acs.ac.th |
Assumption College Sriracha is the largest school on Thailand's Eastern Seaboard — a Catholic-run Thai day school founded in 1944, part of the wider Assumption network established by the Brothers of St. Gabriel, educating roughly 4,200 students from Kindergarten through Mathayom 6. Its English Programme (EP), taught in every year group up to Mathayom 2, delivers core subjects in English alongside the Thai national track, making it the practical choice for families who want genuine bilingual education without full international-school pricing. BAANLYY is not affiliated with ACS and takes no paid placement in this guide; confirm all figures directly with the school.
ACS suits families on a tighter relocation budget who want real English-medium instruction and are comfortable with a large, Thai-integrated school rather than a small international campus. The English Programme has limited seats each year and typically fills ahead of the Term 1 intake, so apply as early as your relocation timeline allows. Families wanting a fully international, English-only environment through Grade 12 should instead look at the International School of the Eastern Seaboard (ISE) in nearby Bo Win.
ACS sits in Surasak, Sriracha — in the heart of Chonburi's corporate and industrial community, close to Bangkok Hospital Sriracha and a deep supply of serviced apartments and condos aimed at relocating professionals. Chonburi's industrial corridor has no rail system, so most families drive.
ACS's English Programme (EP) teaches core subjects in English alongside the Thai national curriculum, offered in every year group from Kindergarten up to Mathayom 2 (roughly Grade 8) — giving families genuine bilingual education at a fraction of a fully international school's cost.
Founded in 1944, Assumption College Sriracha is the largest school on Thailand's Eastern Seaboard, educating roughly 4,200 students — predominantly boys — from Kindergarten through Mathayom 6 (Grade 12).
Yes — ACS is a Catholic-run Thai day school, part of the Assumption network of schools founded by the Brothers of St. Gabriel, though it enrolls students of all faiths.
ACS sits at Surasak, Sriracha, Chonburi — central to the Sriracha industrial corridor. It suits families who want genuine English-medium instruction without full international-school pricing, and are comfortable in a large, Thai-integrated school environment rather than a small international campus.
School facts are drawn from the school's own official website and independently verified public sources. BAANLYY is not affiliated with ACS and takes no paid placement in this content — always confirm current fees, admissions and campus details directly with the school.
See the full Chonburi schools guide for how ACS compares with the corridor's other schools.