Country rankings

Most Biodiverse Country

Brazil has the highest Biodiversity Index in 2022 (512.34), followed by Indonesia (418.78) and Colombia (369.76). Thailand has the lowest (200.77).

Environment20 countries · 7 metricsUpdated Jan 13, 2025Original page
1 source
Year 202220 of 235 countries
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Biodiversity Index, 2022

Darker green is better (higher is better). Click a place to highlight it.

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All 20 ranked

Best first.

Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →

Each dot is one country; the lines mark the median and the middle half.

Median
276.76
Middle half 214.64 – 338.5
Average
287.45
20 countries
Highest
512.34
Brazil
Lowest
200.77
Thailand

Data

Click a column to sort, a row to highlight that place on the charts.

20 countries · # = rank by Biodiversity Index
#
1Brazil512.341,8161,1414,73869384734,387
2Indonesia418.781,7233834,81372977219,232
3Colombia369.761,8638122,10547763424,025
4China365.841,2855403,47662255431,362
5Mexico342.471,1054112,62953398823,385
6Australia337.187252454,9923551,13119,324
7Peru330.121,8616551,58349051019,812
8India301.631,2124462,60144071545,000
9Ecuador291.581,6296591,11139249218,466
10United States280.138443263,08153155615,500
11Venezuela273.39——————
12Papua New Guinea226.57——————
13Myanmar221.77——————
14Vietnam216.97——————
15Malaysia214.71——————
16DR Congo214.43——————
17Tanzania213.1——————
18Bolivia209.55——————
19South Africa207.94——————
20Thailand200.77——————

What correlates with Biodiversity Index (2022)?

Pearson r against 1,907 other country metrics sharing at least 12 countries. Correlation is not causation.

Higher together

Places that have a higher Biodiversity Index tend to score higher on these

  1. Mammal SpeciesMegadiverse Countries
    r = +0.87 · very strong · n = 14
    Plot
  2. Renewable Internal FreshwaterFresh water by Country
    r = +0.80 · very strong · n = 20
    Plot
  3. # of Snake SpeciesSnake Population by Country
    r = +0.79 · very strong · n = 20
    Plot
  4. Reptile SpeciesMegadiverse Countries
    r = +0.79 · very strong · n = 14
    Plot
  5. Expected DeparturesVisa Overstay by Country
    r = +0.78 · very strong · n = 18
    Plot
  6. Forest Cover Forest AreaForest Cover by Country
    r = +0.75 · very strong · n = 19
    Plot

Opposite directions

Places that have a higher Biodiversity Index tend to score lower on these

  1. FSI Index Secrecy ScoreBest Countries to Hide Money
    r = −0.70 · very strong · n = 17
    Plot
  2. FSI ScoreTax Haven Countries
    r = −0.70 · strong · n = 17
    Plot
  3. Down SyndromeBirth Defect Rates by Country
    r = −0.68 · strong · n = 20
    Plot
  4. Voting AgeVoting Age by Country
    r = −0.57 · strong · n = 20
    Plot
  5. Residential VoltageVoltage by Country
    r = −0.57 · strong · n = 18
    Plot
  6. Year of First Oscar SubmissionOscar Winners by Country
    r = −0.56 · strong · n = 16
    Plot

Quick answers

Which country has the highest Biodiversity Index?
Brazil has the highest Biodiversity Index in 2022, at 512.34, followed by Indonesia (418.78) and Colombia (369.76).
Which country has the lowest Biodiversity Index?
Thailand has the lowest Biodiversity Index in 2022, at 200.77.
What is the median Biodiversity Index across countries?
The median is 276.76 across the 20 countries with data in 2022.
Where does this most biodiverse country data come from?
Rankodex compiles it from World Population Review and the primary sources it cites: The 10 Most Biodiverse Countries In The World - World Atlas.