Control of Corruption - Governance score (0-100) (Control score 0-100) in Tonga

Tonga: Control of Corruption - Governance score (0-100) (Control score 0-100) was 39.63 0-100 in 2025. ▲ Rising

Latest (2025)
39.63 0-100
Change on year
up 0.0%
World rank
128th
of 208 countries
All-time high
49.99 0-100
in 2004
All-time low
21.38 0-100
in 2005
Years of data
22
2004–2025

Control of Corruption - Governance score in Tonga, 2004–2025

010203040502004201420252004: 50 0-1002005: 21.4 0-1002006: 21.5 0-1002007: 26.8 0-1002008: 35.2 0-1002009: 35.7 0-1002010: 43.4 0-1002011: 43.6 0-1002012: 43.6 0-1002013: 43.6 0-1002014: 36.4 0-1002015: 36.2 0-1002016: 36.2 0-1002017: 43.4 0-1002018: 46.4 0-1002019: 39.3 0-1002020: 42.5 0-1002021: 41.3 0-1002022: 38.1 0-1002023: 38.2 0-1002024: 39.6 0-1002025: 39.6 0-100

Source: The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG). Measured in 0-100.

Analysis

The most recent figure for control of corruption - governance score in Tonga is 39.63 0-100, measured in 2025.

The figure is up 9.5% over ten years.

Over the whole period, control of corruption - governance score in Tonga peaked at 49.99 0-100 in 2004 and was at its lowest, 21.38 0-100, in 2005.

Tonga ranks 128th of 208 countries on this measure, in the middle of the range.

The long-run direction has been consistently rising across the 22 years of available data.

Control of Corruption - Governance score (0-100) (Control score 0-100) in Tonga, year by year

Annual values for Control of Corruption - Governance score (0-100) in Tonga, 2004 to 2025.
Year 0-100 Change
2004 49.99 0-100 —
2005 21.38 0-100 -57.2%
2006 21.49 0-100 +0.5%
2007 26.82 0-100 +24.8%
2008 35.25 0-100 +31.4%
2009 35.7 0-100 +1.3%
2010 43.42 0-100 +21.6%
2011 43.64 0-100 +0.5%
2012 43.58 0-100 -0.1%
2013 43.59 0-100 +0.0%
2014 36.39 0-100 -16.5%
2015 36.19 0-100 -0.5%
2016 36.23 0-100 +0.1%
2017 43.35 0-100 +19.7%
2018 46.4 0-100 +7.0%
2019 39.31 0-100 -15.3%
2020 42.49 0-100 +8.1%
2021 41.31 0-100 -2.8%
2022 38.12 0-100 -7.7%
2023 38.17 0-100 +0.2%
2024 39.63 0-100 +3.8%
2025 39.63 0-100 +0.0%

Tonga compared with similar countries

  • Tonga's 39.63 0-100 is below the median for upper middle income countries, which is 41.82 0-100, 95% of the median. (59 countries reporting)
  • Tonga's 39.63 0-100 is below the median for East Asia & Pacific, which is 54.61 0-100, 73% of the median. (36 countries reporting)

Biggest year-on-year movements

Years where Control of Corruption - Governance score (0-100) (Control score 0-100) 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
2005 -57.2% 49.99 0-100 21.38 0-100

Averages by decade

DecadeAverage LowestHighest Years
2000s 31.77 0-100 21.38 0-100 49.99 0-100 6
2010s 41.21 0-100 36.19 0-100 46.4 0-100 10
2020s 39.89 0-100 38.12 0-100 42.49 0-100 6

Countries ranked near Tonga

  1. 125 Suriname 40.34 0-100 compare
  2. 126 Argentina 40.26 0-100 compare
  3. 127 East Timor 40.16 0-100 compare
  4. 129 Mongolia 38.99 0-100 compare
  5. 130 Zambia 38.86 0-100 compare
  6. 131 Bosnia and Herzegovina 38.35 0-100 compare

See the full ranking of 208 places →

More reference data data for Tonga

All data for Tonga →

Frequently asked questions

What is control of corruption - governance score in Tonga?
Control of corruption - governance score in Tonga was 39.63 0-100 in 2025, according to The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG).
What is the highest control of corruption - governance score recorded in Tonga?
The highest recorded value was 49.99 0-100 in 2004.
What is the lowest control of corruption - governance score recorded in Tonga?
The lowest recorded value was 21.38 0-100 in 2005.
How does Tonga rank for control of corruption - governance score?
Tonga ranks 128th out of 208 countries with data for 2025.
Is control of corruption - governance score rising or falling in Tonga?
Over the last ten years it is up 9.5%. The long-run trend across the full record is rising.
Where does this Tonga data come from?
The figures come from The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG), published as part of Control of Corruption - Governance score (0-100). Statizoid updates them automatically from the source API.

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Control of Corruption - Governance score in Tonga. Statizoid, drawing on The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG). Retrieved 14 November 2026, from https://reference.statizoid.com/stat/control-of-corruption-governance-score-0-100/tonga/

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About this data

Indicator
Control of Corruption - Governance score (0-100)
Unit
0-100
Source
The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG)
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
208 places, 5,432 data points, 1996–2025
Last refreshed

Control of Corruption (CC) captures perceptions of the extent to which public power is used for private gain, including both petty and grand corruption, as well as capture of the state by elites and private interests. Governance score is a linear transformation of the governance estimate using hypothetical worst-case and base-case countries. It is an absolute score ranging from 0-100. Larger values correspond to better governance. The (country-series-time) metadata include the (a) number of sources, and (b) confidence intervals (lower and upper bound). The number of sources indicates the number of underlying data sources on which the governance score (respectively the underlying governance estimate) is based. The confidence intervals include the lower and upper bound of the 90% confidence interval for the governance score. Confidence intervals are a statistical range of values that likely contain the true value (of what is being estimated).