Pupil-qualified teacher ratio in secondary in Thailand
Thailand: Pupil-qualified teacher ratio in secondary was 17.45 headcount basis in 2025. ▼ Falling
Pupil-qualified teacher ratio in secondary in Thailand, 2014–2025
Source: UNESCO Institute for Statistics. Measured in headcount basis.
Analysis
The most recent figure for pupil-qualified teacher ratio in secondary in Thailand is 17.45 headcount basis, measured in 2025.
Compared with earlier readings it is up 0.7% on the previous year and down 38.0% over ten years.
Over the whole period, pupil-qualified teacher ratio in secondary in Thailand peaked at 29.54 headcount basis in 2014 and was at its lowest, 16.65 headcount basis, in 2020.
That places Thailand 34th out of 86 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently falling across the 12 years of available data.
Pupil-qualified teacher ratio in secondary in Thailand, year by year
| Year | headcount basis | Change |
|---|---|---|
| 2014 | 29.54 headcount basis | — |
| 2015 | 28.15 headcount basis | -4.7% |
| 2016 | 26.63 headcount basis | -5.4% |
| 2017 | 17.47 headcount basis | -34.4% |
| 2018 | 17.34 headcount basis | -0.8% |
| 2019 | 18.2 headcount basis | +5.0% |
| 2020 | 16.65 headcount basis | -8.5% |
| 2021 | 19.16 headcount basis | +15.1% |
| 2022 | 18.59 headcount basis | -3.0% |
| 2023 | 19.54 headcount basis | +5.1% |
| 2024 | 17.34 headcount basis | -11.3% |
| 2025 | 17.45 headcount basis | +0.7% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 22.89 headcount basis | 17.34 headcount basis | 29.54 headcount basis | 6 |
| 2020s | 18.12 headcount basis | 16.65 headcount basis | 19.54 headcount basis | 6 |
Countries ranked near Thailand
More education data for Thailand
- Primary education, teachers, gaps filled 305,368 (2025)
- Duration of pre primary education, annual growth rate 0 % change on previous year (2025)
- Duration of pre primary education 3 (2025)
- Official entrance age to pre primary education 3 (2025)
- Population ages 15-64 69.6% (2025)
- Population ages 0-14 14.4% (2025)
- Lower secondary school starting age 12 years (2025)
- Primary school starting age 6 years (2025)
- Primary secondary enrollment completion rates, gaps filled 100.73 (2025)
- School enrollment, primary 100.7% (2025)
Frequently asked questions
- What is pupil-qualified teacher ratio in secondary in Thailand?
- Pupil-qualified teacher ratio in secondary in Thailand was 17.45 headcount basis in 2025, according to UNESCO Institute for Statistics.
- What is the highest pupil-qualified teacher ratio in secondary recorded in Thailand?
- The highest recorded value was 29.54 headcount basis in 2014.
- What is the lowest pupil-qualified teacher ratio in secondary recorded in Thailand?
- The lowest recorded value was 16.65 headcount basis in 2020.
- How does Thailand rank for pupil-qualified teacher ratio in secondary?
- Thailand ranks 34th out of 86 countries with data for 2025.
- Is pupil-qualified teacher ratio in secondary rising or falling in Thailand?
- Over the last ten years it is down 38.0%. The long-run trend across the full record is falling.
- Where does this Thailand data come from?
- The figures come from UNESCO Institute for Statistics, published as part of Pupil-qualified teacher ratio in secondary (headcount basis). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 12 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release