Education in Chiang Rai, Thailand: official figures
In the 2024 (B.E. 2567) O-NET national tests, Grade 6 students in Chiang Rai averaged Thai 53.7, maths 29.5, science 43.4, English 33.7 (marks out of 100). The national averages were Thai 54.2, maths 29.2, science 42.9, English 33.5. Across the four subjects Chiang Rai averaged 40.1 against 39.9 nationally, ranking 34th highest of 77 provinces.
How well do Grade 9 students in Chiang Rai do in the O-NET exams?
In the 2024 (B.E. 2567) O-NET national tests, Grade 9 students in Chiang Rai averaged Thai 50.1, maths 27.5, science 35.0, English 31.2 (marks out of 100). The national averages were Thai 48.9, maths 26.5, science 34.2, English 30.9. Across the four subjects Chiang Rai averaged 36.0 against 35.2 nationally, ranking 20th highest of 77 provinces.
Source: National Statistical Office of Thailand, from National Institute of Educational Testing Service results · saved copyHow well do Grade 12 students in Chiang Rai do in the O-NET exams?
In the 2024 (B.E. 2567) O-NET national tests, Grade 12 students in Chiang Rai averaged Thai 43.9, maths 21.5, science 28.9, English 31.0, social studies 36.3 (marks out of 100). The national averages were Thai 42.2, maths 21.8, science 29.0, English 30.6, social studies 35.8. Across the five subjects Chiang Rai averaged 32.3 against 31.9 nationally, ranking 33rd highest of 77 provinces.
Source: National Statistical Office of Thailand, from National Institute of Educational Testing Service results · saved copyHow many students take the O-NET in Chiang Rai?
11,608 Grade 6, 9,545 Grade 9 and 4,506 Grade 12 students in Chiang Rai sat the Thai-language O-NET test in 2024 (B.E. 2567).
Source: National Statistical Office of Thailand, from National Institute of Educational Testing Service results · saved copyAre school test scores in Chiang Rai improving?
The average O-NET mark in Chiang Rai moved from Grade 6 42.3 to 40.1, Grade 9 36.4 to 36.0 and Grade 12 31.6 to 32.3 between 2023 and 2024 (average of the subject averages; each year's test differs, so compare with caution).
Source: National Statistical Office of Thailand, from National Institute of Educational Testing Service results · saved copyHow good is English in schools in Chiang Rai?
In English, students in Chiang Rai averaged 33.7 in Grade 6, 31.2 in Grade 9 and 31.0 in Grade 12 in the 2024 O-NET; the national averages were 33.5, 30.9 and 30.6.
Source: National Statistical Office of Thailand, from National Institute of Educational Testing Service results · saved copyHow Chiang Rai compares with other provinces
O-NET average mark, Grade 6 (2024 (B.E. 2567))
Chiang Rai ranks 34 of 77, highest first. Unweighted average of the subject averages (Thai, maths, science, English), marks out of 100.
| Rank | Region | O-NET average mark, Grade 6 |
|---|---|---|
| 31 | Surin | 40.5 |
| 32 | Phra Nakhon Si Ayutthaya | 40.4 |
| 33 | Krabi | 40.2 |
| 34 | Chiang Rai | 40.1 |
| 35 | Nakhon Ratchasima | 40.0 |
| 36 | Khon Kaen | 39.9 |
| 37 | Sukhothai | 39.9 |
O-NET average mark, Grade 9 (2024 (B.E. 2567))
Chiang Rai ranks 20 of 77, highest first. Unweighted average of the subject averages (Thai, maths, science, English), marks out of 100.
| Rank | Region | O-NET average mark, Grade 9 |
|---|---|---|
| 17 | Phitsanulok | 36.4 |
| 18 | Trat | 36.2 |
| 19 | Phetchaburi | 36.2 |
| 20 | Chiang Rai | 36.0 |
| 21 | Lampang | 36.0 |
| 22 | Chumphon | 35.8 |
| 23 | Ratchaburi | 35.8 |
O-NET average mark, Grade 12 (2024 (B.E. 2567))
Chiang Rai ranks 33 of 77, highest first. Unweighted average of the subject averages (Thai, maths, science, English and social studies), marks out of 100.
| Rank | Region | O-NET average mark, Grade 12 |
|---|---|---|
| 30 | Trat | 32.4 |
| 31 | Surin | 32.4 |
| 32 | Phangnga | 32.4 |
| 33 | Chiang Rai | 32.3 |
| 34 | Sing Buri | 32.3 |
| 35 | Kamphaeng Phet | 32.1 |
| 36 | Ratchaburi | 32.0 |
More on Chiang Rai: overview · economy and jobs · health · poverty and living standards · Thailand
Sources
- National Statistical Office of Thailand, from National Institute of Educational Testing Service results: O-NET (Ordinary National Educational Test) average scores and number of candidates by province, Grades 6, 9 and 12, B.E. 2566 and 2567 (2023 and 2024), read 24 October 2026 · saved copy (SHA-256 a3f8bdbd67f1…)
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