Population of the official entrance age to secondary general in Thailand
Thailand: Population of the official entrance age to secondary general was 757,701 in 2025. ▼ Falling
Latest (2025)
757,701
Change on year
down 0.9%
World rank
37th
of 220 countries
All-time high
1.20 million
in 1982
All-time low
746,643
in 2023
Years of data
56
1970–2025
Population of the official entrance age to secondary general in Thailand, 1970–2025
Source: UNESCO Institute for Statistics.
Analysis
The most recent figure for population of the official entrance age to secondary general in Thailand is 757,701, measured in 2025.
The figure is down 0.9% on the previous year and down 13.1% over ten years.
Over the whole period, population of the official entrance age to secondary general in Thailand peaked at 1.20 million in 1982 and was at its lowest, 746,643, in 2023.
Thailand ranks 37th of 220 countries on this measure, in the top quarter.
The long-run direction has been consistently falling across the 56 years of available data.
Population of the official entrance age to secondary general in Thailand, year by year
| Year | Value | Change |
|---|---|---|
| 1970 | 840,354 | — |
| 1971 | 867,599 | +3.2% |
| 1972 | 895,111 | +3.2% |
| 1973 | 924,986 | +3.3% |
| 1974 | 953,526 | +3.1% |
| 1975 | 983,887 | +3.2% |
| 1976 | 1.02 million | +3.2% |
| 1977 | 1.05 million | +3.3% |
| 1978 | 1.08 million | +3.4% |
| 1979 | 1.14 million | +5.2% |
| 1980 | 1.16 million | +2.1% |
| 1981 | 1.18 million | +1.6% |
| 1982 | 1.20 million | +1.0% |
| 1983 | 1.19 million | -0.2% |
| 1984 | 1.19 million | -0.7% |
| 1985 | 1.19 million | +0.2% |
| 1986 | 1.20 million | +0.6% |
| 1987 | 1.19 million | -0.2% |
| 1988 | 1.18 million | -1.4% |
| 1989 | 1.16 million | -1.3% |
| 1990 | 1.14 million | -1.5% |
| 1991 | 1.12 million | -2.3% |
| 1992 | 1.11 million | -0.4% |
| 1993 | 1.12 million | +0.3% |
| 1994 | 1.12 million | +0.4% |
| 1995 | 1.12 million | -0.5% |
| 1996 | 1.10 million | -1.4% |
| 1997 | 1.09 million | -0.8% |
| 1998 | 1.09 million | -0.4% |
| 1999 | 1.08 million | -0.5% |
| 2000 | 1.05 million | -3.3% |
| 2001 | 1.05 million | +0.0% |
| 2002 | 1.05 million | +0.2% |
| 2003 | 1.05 million | +0.5% |
| 2004 | 1.06 million | +0.3% |
| 2005 | 1.06 million | +0.5% |
| 2006 | 1.06 million | -0.1% |
| 2007 | 1.04 million | -1.7% |
| 2008 | 1.02 million | -2.6% |
| 2009 | 991,688 | -2.4% |
| 2010 | 963,860 | -2.8% |
| 2011 | 923,148 | -4.2% |
| 2012 | 912,915 | -1.1% |
| 2013 | 900,371 | -1.4% |
| 2014 | 886,357 | -1.6% |
| 2015 | 871,614 | -1.7% |
| 2016 | 856,649 | -1.7% |
| 2017 | 841,706 | -1.7% |
| 2018 | 826,778 | -1.8% |
| 2019 | 811,775 | -1.8% |
| 2020 | 796,556 | -1.9% |
| 2021 | 780,955 | -2.0% |
| 2022 | 764,817 | -2.1% |
| 2023 | 746,643 | -2.4% |
| 2024 | 764,706 | +2.4% |
| 2025 | 757,701 | -0.9% |
Thailand compared with similar countries
- Thailand's 757,701 is above the median for upper middle income countries, which is 115,544, 6.6× the median. (58 countries reporting)
- Thailand's 757,701 is above the median for East Asia & Pacific, which is 44,461, 17.0× the median. (35 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 975,483 | 840,354 | 1.14 million | 10 |
| 1980s | 1.18 million | 1.16 million | 1.20 million | 10 |
| 1990s | 1.11 million | 1.08 million | 1.14 million | 10 |
| 2000s | 1.04 million | 991,688 | 1.06 million | 10 |
| 2010s | 879,517 | 811,775 | 963,860 | 10 |
| 2020s | 768,563 | 746,643 | 796,556 | 6 |
Countries ranked near Thailand
More education data for Thailand
- Teachers in secondary education, both sexes (number), gaps filled 243,991 (2025)
- Repeaters in primary education, all grades, both sexes (number), gaps 13,596 (2025)
- Enrolment in pre-primary education, male (number), gaps filled 758,147 (2025)
- Enrolment in pre-primary education, female (number), gaps filled 716,498 (2025)
- Secondary education, pupils, gaps filled 4.26 million (2025)
- Primary education, duration (years), annual growth rate 0 % change on previous year (2025)
- Primary education, pupils, gaps filled 4.45 million (2025)
- Primary education, pupils, annual growth rate -1.23 % change on previous year (2025)
- Primary education, pupils, per unit of GDP 0 units per US$ of GDP (2025)
- Primary education, pupils, per capita 0.0621 units per person (2025)
Frequently asked questions
- What is population of the official entrance age to secondary general in Thailand?
- Population of the official entrance age to secondary general in Thailand was 757,701 in 2025, according to UNESCO Institute for Statistics.
- What is the highest population of the official entrance age to secondary general recorded in Thailand?
- The highest recorded value was 1.20 million in 1982.
- What is the lowest population of the official entrance age to secondary general recorded in Thailand?
- The lowest recorded value was 746,643 in 2023.
- How does Thailand rank for population of the official entrance age to secondary general?
- Thailand ranks 37th out of 220 countries with data for 2025.
- Is population of the official entrance age to secondary general rising or falling in Thailand?
- Over the last ten years it is down 13.1%. 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 Population of the official entrance age to secondary general education, both sexes (number). Statizoid updates them automatically from the source API.
Download this data
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About this data
February 2026 Data Release