Chiang Rai International School (CRIS).

Key facts

Overview

Chiang Rai International School opened in 2010 as the first international school in Chiang Rai city, on a purpose-built 11-rai (roughly 4.5-hectare) campus in the semi-rural Rimkok sub-district about 3km north of the centre — an area already popular with longer-term expat residents. CRIS runs ages 3 to 18 across preschool, elementary, middle and high school, and is the only school in the province offering boarding alongside day places. It is one of only two schools in Chiang Rai able to take a child from early years through to a US high-school diploma; the other, CRICS, is older but starts at age 5 and does not offer Advanced Placement.

BAANLYY is not affiliated with CRIS and takes no paid placement in this guide. We do not publish per-school fee figures anywhere on this site, because schedules change every year and the copies circulating in third-party directories disagree with each other by tens of thousands of baht — CRIS publishes its own tuition and fees page, which is the only figure worth budgeting against.

Curriculum, accreditation & academic ceiling

CRIS follows an American-style curriculum built on Common Core State Standards for English Language Arts and Mathematics, Next Generation Science Standards (NGSS) for science and AERO standards for social studies, supplemented by Thai language and culture, Chinese, ICT and electives through a dedicated World Language department. The decisive academic fact, and one our guide previously omitted: the high school offers Advanced Placement, which the school lists as its own academic strand. No other school in Chiang Rai province offers AP, and for a student aiming at a North American university it is the single clearest reason to choose CRIS over the alternatives.

On its own affiliations page the school publishes accreditation by ACS WASC and assessment by Thailand’s ONESQA, together with membership of ISAT and WIDA International. WIDA matters more than it looks: it sets the English language-development standards and assessments used across American schools for multilingual learners, and it pairs directly with the school’s ELD programme. If your child will be studying in English for the first time, that combination is the strongest published provision of any school in the province — ask how it is staffed and how long children typically spend in it.

Campus life, boarding & the chapel question

Boarding is available with separate accommodation for boys and girls — the only such provision in Chiang Rai province, and a real option for families based elsewhere in the north who want an international campus without relocating. Beyond the classroom the school runs a Model United Nations programme, a community-service strand, after-school activities, and a golf academy on its own purpose-built short-game facility with a partnership at the nearby Happy City Golf & Resort for students who want to take the game further.

One correction we owe readers: CRIS is not a secular school, and an earlier version of this guide implied it was. The school runs a weekly chapel, describing it in its own words as focusing on character development from a Christ-centred perspective, structured around character, creativity and community, with discussions brought back to the teachings of Jesus. It also states that it values the diverse perspectives of each person. Neither statement cancels the other, and a family for whom this matters either way should read both. There is no secular international school anywhere in Chiang Rai province — the nearest are in Chiang Mai.

Location, the school run & burning season

The campus sits in Rimkok, a quieter riverside sub-district along the Kok River roughly 3km north of central Chiang Rai. Chiang Rai has no rail or metro of any kind and no city-wide school bus network, so families drive, arrange a private transfer, or use boarding — check the school’s current transport arrangements before choosing where to rent. Our Chiang Rai areas guide covers Rim Kok and the city centre in full.

CRIS hosts a public IQAir AirVisual monitoring station and links to its live readings from its own homepage — unusual transparency, and useful during the February-to-April burning season when Chiang Rai’s air is regularly among the worst in Thailand. Read it precisely, though: that station measures the outdoor air over the Rimkok campus. It does not tell you what the air is like inside a classroom with the doors shut. On a March visit, ask for the indoor reading and ask what the school’s smoke-day policy actually is. See our Chiang Rai air-quality guide for the season in full.

FAQ

Sources & References

• Ministry of Education, Thailand
• Chiang Rai International School — official site
• CRIS — affiliations and accreditations
• CRIS — chapel
• CRIS — tuition and fees (school's own current schedule)

School facts on this page are drawn from the school's own official website — its affiliations, chapel and academics pages in particular. BAANLYY is not affiliated with CRIS and takes no paid placement in this content, and publishes no per-school fee figures. Always confirm current fees, accreditation status, admissions and campus details directly with the school.