The Guide
Sat, 16 May 2026

Cities / Chiang Mai / American Pacific International School

American Pacific International School

Chiang Mai's first internationally accredited boarding school, offering IB PYP, MYP and Diploma across two campuses - a city Primary Campus for Nursery to Grade 5 and a residential Main Campus in the Samoeng hills for Grades 5-12. 2025-2026 day…


Curriculum
IB
Fees, annual
THB 229–500k
Ages
1 to 18
Pupils
~400
Founded
1997

Chiang Mai's first internationally accredited boarding school, founded in 1997 and now a full IB continuum (PYP, MYP, DP) running from pre-nursery through Grade 12 across two campuses in Hang Dong and Mae Hia.

Around 400 students from over 20 nationalities, WASC accredited, with a rural main campus surrounded by rice fields and small villages on the road to Samoeng. Four boarding houses and a residential programme that, unusually, accepts boarders from age six. That early-boarding option is the school's distinctive feature in the Chiang Mai market and is what attracts the regional Asian families who make up a meaningful share of the roll.

Families consistently praise the staff warmth, the international mix and the rural setting. The IB delivery is the academic backbone for those targeting English-language universities. Practical considerations are the commute from central Chiang Mai to the main campus and the fee step-up against the bilingual schools in town, with day fees running roughly THB 230,000 to 500,000 depending on grade.


Fee Age Type Amount
Nursery 1 (age 1-2) 1 Annual THB 229,100
Nursery 2 (age 2-3) 2 Annual THB 238,700
Kindergarten 1-2 (ages 3-4) 3 Annual THB 254,500
Kindergarten 3 (age 5) 5 Annual THB 271,800
Grades 1-2 6 Annual THB 280,200
Grade 3 8 Annual THB 299,950
Grade 4 9 Annual THB 306,800
Grade 5 10 Annual THB 315,000
Grade 6 11 Annual THB 383,400
Grade 7 12 Annual THB 392,200
Grade 8 13 Annual THB 409,300
Grade 9 14 Annual THB 460,800
Grade 10 15 Annual THB 465,300
Grade 11 16 Annual THB 492,200
Grade 12 17 Annual THB 499,800
Application Fee One-time THB 4,000
Entrance Fee (one-time) One-time THB 40,000

  • Boarding and day school 45 minutes outside Chiang Mai. Reddit teacher reviews paint a school known more for setting and lifestyle than academic firepower.
  • Former staff describe an isolated rural campus where first-year teachers must live on site, share meals with students, and struggle to switch off. One ex-teacher: "You're always around students, for every meal, so it can feel like you're always working."
  • Same teacher said the head of school has been in post 10+ years with the owners' backing, while other admin roles have churned more often.
  • Teachers flag low pay relative to other international schools, with starting salaries that one applicant put around USD 21,000 for four years' experience. Posters describe it as a stepping-stone first international post rather than a destination school.
  • For-profit ownership shows in the facilities. One former teacher: "facilities are old and unlikely to be updated."
  • Reports of staff at the dorms and nearby bars informally feeding information back to the owners, which posters describe as uncomfortable.
  • Big draws are Chiang Mai itself, the rural campus, IB continuum across PYP, MYP and DP, and the chance to break into international teaching.

Head of school

Ms. Stacey Gailey

Ms. Stacey Gailey is the Head of School at American Pacific International School (APIS). Having joined the institution around 2013, she served as the Primary Campus Principal for three years before transitioning to the role of Head of School. She oversees both the Main and Primary campuses, ensuring the delivery of the IB Continuum across the Primary Years, Middle Years, and Diploma Programmes. Ms. Gailey is committed to the International Baccalaureate philosophy, focusing on developing independent, well-rounded global citizens and lifelong learners within a diverse, internationally-minded community.

Accreditations

  • Western Association of Schools and Colleges (Accrediting Commission for Schools) 01

  • IB DP 2025 92% pass rate, 100% Bilingual Diploma pass rate, average score 32, highest score 43.

Main Campus: 88/2 Moo 5, Samoeng Tai, Samoeng, Chiang Mai 50250, Thailand

School website