Global corruption perception index: a look at declining integrity worldwide

Allemagne Berlin 2010 | Photo de dossiers de presse lors de la présentation de l'indice de perception de la corruption Transparency International (archive)

According to the 2025 Corruption Perception Index (CPI) published by Transparency International, corruption is worsening worldwide. This concerning trend is observed even in well-established democracies, which are experiencing increased corruption amidst a decline in political leadership.

The CPI ranks 182 countries and territories based on their perceived levels of public sector corruption, using a scale where zero signifies extreme corruption and 100 indicates a very clean environment.

The recently released ranking reveals that more than two-thirds of the evaluated nations scored below 50 out of 100.

Allemagne Berlin 2019 | photo d'un panneau lors de la conférence de presse de  Transparency International sur l'IPC 2019 (illustration)

Understanding the Methodology Behind Corruption Perception

By its very nature, corruption is inherently challenging to quantify, as most corrupt practices are illegal and thus concealed.

However, it is feasible to gauge a state’s corruption levels based on public perception within the country. This is precisely what the NGO Transparency International endeavors to measure annually: the perception of corruption from one nation to another. The findings from the 2025 Corruption Perception Index (CPI) study have just been made public.

The Corruption Perception Index integrates data from 13 independent sources, including the World Bank, the World Economic Forum, various private consulting and risk management firms, think tanks, and other relevant organizations.

It assigns scores to countries based on factors such as the rate of legal actions taken against corrupt officials, the extent of public fund embezzlement, and the quality of protection afforded to whistleblowers, among others. Once these scores are allocated, Transparency International then ranks countries accordingly.

Out of the 180 countries assessed, Denmark secured the top position with 89 points, while South Sudan and Somalia were at the bottom of the list, each scoring a mere 9 points.

Lutte contre la corruption : des rappeurs s’engagent

Sub-Saharan Africa’s Persistent Challenges in Corruption Rankings

Sub-Saharan Africa continues to be the lowest-ranked region globally, with an average score of 32 out of 100.

Only four countries in this region managed to surpass the 50/100 threshold, and notably, none of these top performers (Seychelles, Cape Verde, Rwanda, Botswana) are francophone nations. The disparities in corruption perception within the African continent are particularly pronounced.

Among francophone countries, West Africa recorded an average score of 34.2/100. Senegal, Benin, and Côte d’Ivoire are leading this group, largely due to administrative reforms. In contrast, Transparency International highlighted Guinea’s institutional weaknesses and tightly controlled civic space as significant concerns.

The Fragile Sahel Region and Corruption

In the Sahel, francophone countries exhibit poorer results. Their scores reflect volatile security and political environments, coupled with institutions weakened by the suppression of counter-powers. These conditions create fertile ground for corruption.

Burkina Faso leads the Sahelian countries but with a score of 40, which remains significantly below the average of 50/100. For comparison, Niger scored 31, Mali 28, and Chad 22 out of 100.

Francophone Central Africa: A Region in Decline

Francophone Central Africa’s average score is on a downward trend, primarily due to ongoing conflicts in the area, such as the persistent unrest in the eastern Democratic Republic of Congo (20/100). Here, the central government has lost control over parts of its territory, which are now dominated by armed groups. Burundi (17) also remains near the bottom of the overall ranking. Rwanda, however, stands out as an exception with 58 points out of 100.

In conclusion, it’s important to note that no francophone African country achieved 70 points out of 100, which Transparency International designates as the threshold for the “high integrity” zone.

Des mains de femme donnent une enveloppe à une main d'homme (symbole, illustration)

Corruption Perception in Europe

For context, Germany, with a score of 77 points, ranks tenth globally. This places it 27 positions ahead of France, which scored 66 out of 100.

François Valérian, President of Transparency International, stated: “We have anti-corruption laws in place, and anti-corruption bodies exist. However, these laws are simply not enforced, and the bodies often lack independence and adequate resources.”

He expressed regret over “a perceived lack of interest from several governments, particularly those in the Global North, who believe they have already addressed corruption sufficiently and that further action is unnecessary.”

Seuls 40% des Centrafricains ont confiance en la justice

The Imperative for Strengthening Judicial Independence

Transparency International’s data indicates a troubling trend: democracies, typically stronger in their fight against corruption compared to autocracies or flawed democracies, are experiencing a worrying decline in performance.

This trend extends to countries like the United States and various parts of Europe. Consequently, François Valérian advocates for decisive action: “We require a judicial system that operates independently from the executive branch of government, and also free from private interests. Furthermore, this judiciary, adequately staffed and financially resourced, must be empowered to fulfill its mandate.”

Late last year, the European Union adopted its inaugural anti-corruption directive, aiming to standardize criminal laws pertaining to corruption.

However, the tangible effects of these measures are anticipated to become apparent only after a considerable period.