Thailand Now Has 280 International Schools. Filling Them Is a Different Problem.

Thailand's international school sector has crossed a threshold its operators have long hoped to avoid: there are now more campuses opening than there are students to fill them. The country had 280 international schools in 2026, up from 234 in 2022, but school numbers grew 5.3 percent this year against student enrolment growth of only 3.8 percent, according to The Nation Thailand, citing analysis published in October by Kasikorn Research Center.

The result is a measurable decline in average rolls. Enrollment per school has slipped from 312 pupils in both 2024 and 2025 to 307 in 2026, and KResearch projects a further fall to 304 in 2027, by which point the country is forecast to have 293 schools serving around 89,200 students. Total sector revenue is still expected to climb, from 128 billion baht this year to 141 billion baht in 2027, but that growth is driven increasingly by fee increases rather than by new families entering the market.

What the numbers mean for operators

For most of the past decade, opening an international school in Thailand was a relatively reliable bet: demand was outrunning supply, and a new campus with a credible curriculum could expect to fill steadily. The KResearch figures mark a shift in that logic. As average rolls decline, fixed costs do not, and the margin between a viable school and an unviable one narrows. Newer and smaller operators, who carry the highest debt loads relative to their student base, are under the most pressure.

Schools have responded partly through fees. Average annual tuition at Bangkok international schools is forecast to reach around 839,000 baht in the 2026/27 academic year, an increase of approximately five percent. That supports per-student revenue but carries its own risk. The bulk of demand growth in recent years has come from local affluent Thai families, not expatriate corporate packages, and that segment is more sensitive to price than operators accustomed to the top of the market may assume.

The shift beyond Bangkok

Bangkok accounts for more than 45 percent of Thailand's international schools, and competition there is already intense. KResearch expects new openings to concentrate increasingly on provincial cities, where enrollment density is lower but so is the competitive field. Chiang Mai and Phuket have each attracted British-curriculum arrivals in 2026, and several groups already operating in Bangkok are understood to be evaluating regional sites for their next campus.

For families choosing a school, the picture is one of expanding options but uneven quality. In a market where reputation alone no longer guarantees rolls, schools with strong inspection records, published university placement data, and genuine programme differentiation are expected to hold their numbers. Those without may find fee increases are a short-term fix that defers, rather than solves, a structural problem.