Teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries

SDG: Least Developed Countries: Teachers in secondary education, both sexes (number), gaps filled was 3.12 million in 2024. ◆ Volatile

Latest (2024)
3.12 million
Change on year
up 1.1%
Rank
105th
of 221 groups
All-time high
3.12 million
in 2024
All-time low
239,022
in 1971
Years of data
54
1971–2024

Teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries, 1971–2024

01.0M2.0M3.0M197119972024

Source: Statizoid (derived).

Analysis

The most recent figure for teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries is 3.12 million, measured in 2024. That is the highest value across all 54 years on record.

The figure is up 1.1% on the previous year and up 45.4% over ten years.

Over the whole period, teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries peaked at 3.12 million in 2024 and was at its lowest, 239,022, in 1971.

That places SDG: Least Developed Countries 105th out of 221 groups with data for 2024, putting it in the middle of the range.

The series is highly variable year to year, so single readings are best treated with caution.

Teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries, year by year

Annual values for Teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries, 1971 to 2024.
Year Value Change
1971 239,022
1972 259,340 +8.5%
1973 269,133 +3.8%
1974 276,011 +2.6%
1975 285,372 +3.4%
1976 287,710 +0.8%
1977 303,757 +5.6%
1978 322,126 +6.0%
1979 342,386 +6.3%
1980 369,008 +7.8%
1981 377,539 +2.3%
1982 392,799 +4.0%
1983 416,776 +6.1%
1984 440,158 +5.6%
1985 447,459 +1.7%
1986 466,973 +4.4%
1987 486,382 +4.2%
1988 524,524 +7.8%
1989 549,909 +4.8%
1990 565,964 +2.9%
1991 604,496 +6.8%
1992 627,931 +3.9%
1993 662,602 +5.5%
1994 695,424 +5.0%
1995 738,186 +6.1%
1996 764,584 +3.6%
1997 779,802 +2.0%
1998 825,376 +5.8%
1999 856,137 +3.7%
2000 908,624 +6.1%
2001 975,406 +7.3%
2002 1.06 million +8.5%
2003 1.14 million +7.6%
2004 1.22 million +7.2%
2005 1.33 million +8.6%
2006 1.38 million +4.0%
2007 1.46 million +6.0%
2008 1.51 million +3.2%
2009 1.63 million +8.4%
2010 1.76 million +7.5%
2011 1.83 million +4.1%
2012 1.92 million +4.9%
2013 2.05 million +7.0%
2014 2.15 million +4.6%
2015 2.29 million +6.5%
2016 2.45 million +7.1%
2017 2.52 million +2.9%
2018 2.52 million +0.1%
2019 2.66 million +5.4%
2020 2.77 million +4.2%
2021 2.88 million +4.0%
2022 2.98 million +3.5%
2023 3.09 million +3.5%
2024 3.12 million +1.1%

Averages by decade

DecadeAverage LowestHighest Years
1970s 287,206 239,022 342,386 9
1980s 447,153 369,008 549,909 10
1990s 712,050 565,964 856,137 10
2000s 1.26 million 908,624 1.63 million 10
2010s 2.21 million 1.76 million 2.66 million 10
2020s 2.97 million 2.77 million 3.12 million 5

Countries ranked near SDG: Least Developed Countries

  1. 102 New Zealand 36,426 compare
  2. 103 Lao People's Democratic Republic 35,584 compare
  3. 104 Rwanda 34,324 compare
  4. 105 Paraguay 34,286 compare
  5. 106 Mozambique 33,281 compare
  6. 107 Ireland 32,531 compare
  7. 108 Georgia 31,929 compare

See the full ranking of 435 places →

More education data for SDG: Least Developed Countries

All data for SDG: Least Developed Countries →

Frequently asked questions

What is teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries?
Teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries was 3.12 million in 2024, according to Statizoid (derived).
What is the highest teachers in secondary education, both sexes (number), gaps filled recorded in SDG: Least Developed Countries?
The highest recorded value was 3.12 million in 2024.
What is the lowest teachers in secondary education, both sexes (number), gaps filled recorded in SDG: Least Developed Countries?
The lowest recorded value was 239,022 in 1971.
How does SDG: Least Developed Countries rank for teachers in secondary education, both sexes (number), gaps filled?
SDG: Least Developed Countries ranks 105th out of 221 groups with data for 2024.
Is teachers in secondary education, both sexes (number), gaps filled rising or falling in SDG: Least Developed Countries?
Over the last ten years it is up 45.4%. The long-run trend across the full record is volatile.
Where does this SDG: Least Developed Countries data come from?
The figures come from Statizoid (derived), published as part of Teachers in secondary education, both sexes (number), gaps filled. Statizoid updates them automatically from the source API.

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Teachers in secondary education, both sexes (number), gaps filled in SDG: Least Developed Countries. Statizoid, drawing on Statizoid (derived). Retrieved 05 September 2026, from https://education.statizoid.com/stat/teachers-in-secondary-education-both-sexes-number-gaps-filled/sdg-least-developed-countries/

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How this figure is calculated

Teachers in secondary education, both sexes (number) with 768 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.

Computed from

Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.

About this data

Indicator
Teachers in secondary education, both sexes (number), gaps filled
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
435 places, 17,549 data points, 1970–2025
Last refreshed

Teachers in secondary education, both sexes (number) with 768 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.