Teachers in secondary education, both sexes (number), per square in Tonga

Tonga: Teachers in secondary education, both sexes (number), per square was 1.51 units per square kilometre in 2015. ▲ Rising

Latest (2015)
1.51 units per square kilometre
Change on year
down 2.7%
World rank
46th
of 201 countries
All-time high
1.95 units per square kilometre
in 1998
All-time low
0.5944 units per square kilometre
in 1970
Years of data
19
1970–2015

Teachers in secondary education, both sexes (number), per square in Tonga, 1970–2015

0.511.521970199220151970: 0.594 units per square kilometre1984: 1.2 units per square kilometre1985: 1.2 units per square kilometre1986: 1.1 units per square kilometre1990: 1.2 units per square kilometre1991: 1.2 units per square kilometre1998: 1.9 units per square kilometre1999: 1.4 units per square kilometre2000: 1.4 units per square kilometre2001: 1.4 units per square kilometre2002: 1.4 units per square kilometre2007: 1.4 units per square kilometre2008: 1.4 units per square kilometre2009: 1.4 units per square kilometre2010: 1.4 units per square kilometre2011: 1.4 units per square kilometre2013: 1.6 units per square kilometre2014: 1.6 units per square kilometre2015: 1.5 units per square kilometre

Source: Statizoid (derived). Measured in units per square kilometre.

Analysis

The most recent figure for teachers in secondary education, both sexes (number), per square in Tonga is 1.51 units per square kilometre, measured in 2015.

That represents a change of down 2.7% on the previous year and up 10.6% over ten years.

Over the whole period, teachers in secondary education, both sexes (number), per square in Tonga peaked at 1.95 units per square kilometre in 1998 and was at its lowest, 0.5944 units per square kilometre, in 1970.

That places Tonga 46th out of 201 countries with data for 2015, putting it in the top quarter.

The long-run direction has been consistently rising across the 19 years of available data.

Teachers in secondary education, both sexes (number), per square in Tonga, year by year

Annual values for Teachers in secondary education, both sexes (number), per square kilometre in Tonga, 1970 to 2015.
Year units per square kilometre Change
1970 0.5944 units per square kilometre
1984 1.18 units per square kilometre +99.3%
1985 1.17 units per square kilometre -1.5%
1986 1.11 units per square kilometre -4.9%
1990 1.16 units per square kilometre +4.1%
1991 1.22 units per square kilometre +5.3%
1998 1.95 units per square kilometre +60.0%
1999 1.4 units per square kilometre -28.2%
2000 1.38 units per square kilometre -1.3%
2001 1.42 units per square kilometre +2.8%
2002 1.41 units per square kilometre -0.9%
2007 1.36 units per square kilometre -3.0%
2008 1.37 units per square kilometre +0.5%
2009 1.36 units per square kilometre -0.6%
2010 1.38 units per square kilometre +1.2%
2011 1.42 units per square kilometre +2.8%
2013 1.55 units per square kilometre +9.3%
2014 1.55 units per square kilometre +0.0%
2015 1.51 units per square kilometre -2.7%

Tonga compared with similar countries

  • Tonga's 1.51 units per square kilometre is above the median for upper middle income countries, which is 0.6813 units per square kilometre, 2.2× the median. (57 countries reporting)
  • Tonga's 1.51 units per square kilometre is above the median for East Asia & Pacific, which is 0.7501 units per square kilometre, 2.0× the median. (34 countries reporting)

Biggest year-on-year movements

Years where Teachers in secondary education, both sexes (number), per square in Tonga changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

YearChange FromTo
1984 +99.3% 0.5944 units per square kilometre 1.18 units per square kilometre
1998 +60.0% 1.22 units per square kilometre 1.95 units per square kilometre
1999 -28.2% 1.95 units per square kilometre 1.4 units per square kilometre

Averages by decade

DecadeAverage LowestHighest Years
1970s 0.5944 units per square kilometre 0.5944 units per square kilometre 0.5944 units per square kilometre 1
1980s 1.15 units per square kilometre 1.11 units per square kilometre 1.18 units per square kilometre 3
1990s 1.43 units per square kilometre 1.16 units per square kilometre 1.95 units per square kilometre 4
2000s 1.38 units per square kilometre 1.36 units per square kilometre 1.42 units per square kilometre 6
2010s 1.48 units per square kilometre 1.38 units per square kilometre 1.55 units per square kilometre 5

Countries ranked near Tonga

  1. 43 Italy 1.55 units per square kilometre compare
  2. 44 Cayman Islands 1.54 units per square kilometre compare
  3. 45 Seychelles 1.52 units per square kilometre compare
  4. 47 Vietnam 1.46 units per square kilometre compare
  5. 48 Trinidad and Tobago 1.43 units per square kilometre compare
  6. 49 Azerbaijan 1.41 units per square kilometre

See the full ranking of 201 places →

More education data for Tonga

All data for Tonga →

Frequently asked questions

What is teachers in secondary education, both sexes (number), per square in Tonga?
Teachers in secondary education, both sexes (number), per square in Tonga was 1.51 units per square kilometre in 2015, according to Statizoid (derived).
What is the highest teachers in secondary education, both sexes (number), per square recorded in Tonga?
The highest recorded value was 1.95 units per square kilometre in 1998.
What is the lowest teachers in secondary education, both sexes (number), per square recorded in Tonga?
The lowest recorded value was 0.5944 units per square kilometre in 1970.
How does Tonga rank for teachers in secondary education, both sexes (number), per square?
Tonga ranks 46th out of 201 countries with data for 2015.
Is teachers in secondary education, both sexes (number), per square rising or falling in Tonga?
Over the last ten years it is up 10.6%. The long-run trend across the full record is rising.
Where does this Tonga data come from?
The figures come from Statizoid (derived), published as part of Teachers in secondary education, both sexes (number), per square kilometre. Statizoid updates them automatically from the source API.

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Teachers in secondary education, both sexes (number), per square in Tonga. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://education.statizoid.com/stat/teachers-in-secondary-education-both-sexes-number-per-square-kilometre/tonga/

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How this figure is calculated

Teachers in secondary education, both sexes (number) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.

Teachers in secondary education, both sexes (number) ÷ Land area (sq. km)

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), per square kilometre
Unit
units per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
201 places, 5,131 data points, 1970–2023
Last refreshed

Teachers in secondary education, both sexes (number) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.