Statizoid

Full democracy in Tonga

Tonga: Full democracy was 1 in 2025. ◆ Volatile

Latest (2025)
1
Change on year
unchanged
World rank
1st
of 197 countries
All-time high
1
in 2018
All-time low
0
in 1845
Years of data
181
1845–2025

Full democracy in Tonga, 1845–2025

00.20.40.60.81184519352025

Source: Lexical Index (2026) – processed by Our World in Data.

Analysis

The most recent figure for full democracy in Tonga is 1, measured in 2025. That is the highest value across all 181 years on record.

Compared with earlier readings it is unchanged over five years.

Over the whole period, full democracy in Tonga peaked at 1 in 2018 and was at its lowest, 0, in 1845.

That places Tonga 1st out of 197 countries with data for 2025, putting it in the top 10%.

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

Averages by decade

DecadeAverage LowestHighest Years
1840s 0 0 0 5
1850s 0 0 0 10
1860s 0 0 0 10
1870s 0 0 0 10
1880s 0 0 0 10
1890s 0 0 0 10
1900s 0 0 0 10
1910s 0 0 0 10
1920s 0 0 0 10
1930s 0 0 0 10
1940s 0 0 0 10
1950s 0 0 0 10
1960s 0 0 0 10
1970s 0 0 0 10
1980s 0 0 0 10
1990s 0 0 0 10
2000s 0 0 0 10
2010s 0.2 0 1 10
2020s 1 1 1 6

Countries ranked near Tonga

  1. 1 Andorra 1 compare
  2. 1 Antigua and Barbuda 1 compare
  3. 1 Argentina 1 compare
  4. 1 Australia 1 compare
  5. 1 Austria 1 compare
  6. 1 Bahamas 1 compare
  7. 1 Barbados 1 compare
  8. 1 Belgium 1 compare
  9. 1 Belize 1 compare
  10. 1 Brazil 1 compare
  11. 1 Bulgaria 1 compare
  12. 1 Canada 1 compare
  13. 1 Cape Verde 1 compare
  14. 1 Chile 1 compare
  15. 1 Costa Rica 1 compare
  16. 1 Croatia 1 compare
  17. 1 Cyprus 1 compare
  18. 1 Czechia 1 compare
  19. 1 Denmark 1 compare
  20. 1 Dominica 1 compare
  21. 1 Dominican Republic 1 compare
  22. 1 Estonia 1 compare
  23. 1 Fiji 1 compare
  24. 1 Finland 1 compare
  25. 1 France 1 compare
  26. 1 Germany 1 compare
  27. 1 Ghana 1 compare
  28. 1 Greece 1 compare
  29. 1 Grenada 1 compare
  30. 1 Guyana 1 compare
  31. 1 Iceland 1 compare
  32. 1 Italy 1 compare
  33. 1 Jamaica 1 compare
  34. 1 Japan 1 compare
  35. 1 Kiribati 1 compare
  36. 1 Latvia 1 compare
  37. 1 Lithuania 1 compare
  38. 1 Marshall Islands 1 compare
  39. 1 Mauritius 1 compare
  40. 1 Micronesia (country) 1 compare
  41. 1 Mongolia 1 compare
  42. 1 Namibia 1 compare
  43. 1 Nauru 1 compare
  44. 1 Netherlands 1 compare
  45. 1 New Zealand 1 compare
  46. 1 Norway 1 compare
  47. 1 Palau 1 compare
  48. 1 Panama 1 compare
  49. 1 Papua New Guinea 1 compare
  50. 1 Poland 1 compare
  51. 1 Portugal 1 compare
  52. 1 Romania 1 compare
  53. 1 Saint Kitts and Nevis 1 compare
  54. 1 Saint Lucia 1 compare
  55. 1 Saint Vincent and the Grenadines 1 compare
  56. 1 Samoa 1 compare
  57. 1 San Marino 1 compare
  58. 1 Sao Tome and Principe 1 compare
  59. 1 Seychelles 1 compare
  60. 1 Slovenia 1 compare
  61. 1 South Africa 1 compare
  62. 1 South Korea 1 compare
  63. 1 Spain 1 compare
  64. 1 Suriname 1 compare
  65. 1 Sweden 1 compare
  66. 1 Switzerland 1 compare
  67. 1 Taiwan 1 compare
  68. 1 Trinidad and Tobago 1 compare
  69. 1 Tuvalu 1 compare
  70. 1 United Kingdom 1 compare
  71. 1 United States 1 compare
  72. 1 Uruguay 1 compare
  73. 1 Vanuatu 1 compare

See the full ranking of 198 places →

More social development data for Tonga

All data for Tonga →

Frequently asked questions

What is full democracy in Tonga?
Full democracy in Tonga was 1 in 2025, according to Lexical Index (2026) – processed by Our World in Data.
What is the highest full democracy recorded in Tonga?
The highest recorded value was 1 in 2018.
What is the lowest full democracy recorded in Tonga?
The lowest recorded value was 0 in 1845.
How does Tonga rank for full democracy?
Tonga ranks 1st out of 197 countries with data for 2025.
Where does this Tonga data come from?
The figures come from Lexical Index (2026) – processed by Our World in Data, published as part of Full democracy. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 181 observations, free to reuse under CC BY 4.0 (Our World in Data).

About this data

Indicator
Full democracy
Source
Lexical Index (2026) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
198 places, 32,485 data points, 1789–2025
Last refreshed

Identifies if a country is a full democracy using the extended Lexical Index of Electoral Democracy (LIED+).