Maptheory
social2023

Corruption Perceptions Index by Country

Transparency International's score (0-100) where higher means less corrupt. Denmark leads at 90, while many nations score below 30.

Source: Transparency International•40 countries

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Key Insights

Global Average
61.6/100
Median: 70.0/100
Countries Covered
40
with available data
Highest
Denmark
90.0/100
Lowest
Nigeria
25.0/100
Top 5 Countries
1Denmark90.0/100
2Finland87.0/100
3New Zealand85.0/100
4Norway84.0/100
5Singapore83.0/100
By Region
Oceania80.0/100(2 countries)
Europe70.3/100(22 countries)
North America58.7/100(3 countries)
Asia53.9/100(8 countries)
South America36.0/100(1 countries)
Key Findings
  • •Nordic countries consistently rank as least corrupt
  • •Two-thirds of countries score below 50
  • •Strong correlation with GDP per capita and press freedom

Country Rankings

Top 10 Countries

Bottom 10 Countries

Data Analysis

Value Distribution

How countries are distributed across the value range

Low (0.0/100)High (100.0/100)

Regional Comparison

Average values by world region (Global avg: 61.6/100)

Oceania (2)
Europe (22)
North America (3)
Asia (8)
South America (1)
Other (2)
Africa (2)

Correlation Analysis

Correlation Analysis

Corruption Index vs GDP per Capita

r = 0.80
Strong positive
Interpretation: There is a strong positive correlation between Corruption Index and GDP per Capita. Countries with higher values in one tend to have higher values in the other.

About This Statistic

The Corruption Perceptions Index (CPI) ranks countries by perceived levels of public sector corruption, as determined by expert assessments and opinion surveys. It's the world's most widely used corruption indicator.

Scores range from 0 (highly corrupt) to 100 (very clean). More than two-thirds of countries score below 50, indicating serious corruption problems. The index focuses on public sector corruption and doesn't capture private sector corruption or money laundering.

Strong rule of law, independent judiciary, free press, and transparent governance are associated with better scores. Corruption undermines economic development, erodes public trust, and diverts resources from essential services.

Methodology

Composite index aggregating 13 data sources from 12 institutions measuring perceptions of corruption.

Full Data

Rank ↑Country ↕Value ↕
1Denmark90.0/100
2Finland87.0/100
3New Zealand85.0/100
4Norway84.0/100
5Singapore83.0/100
6Sweden82.0/100
7Switzerland82.0/100
8Netherlands79.0/100
9Germany78.0/100
10Luxembourg78.0/100
11Ireland77.0/100
12Canada76.0/100
13Estonia76.0/100
14Australia75.0/100
15Japan73.0/100
16Belgium73.0/100
17Iceland72.0/100
18France71.0/100
19United Kingdom71.0/100
20Austria71.0/100
21United States of America69.0/100
22United Arab Emirates68.0/100
23South Korea63.0/100
24Portugal61.0/100
25Spain60.0/100
26Italy56.0/100
27Poland54.0/100
28Cyprus53.0/100
29Greece49.0/100
30People's Republic of China42.0/100
31Hungary42.0/100
32India39.0/100
33Brazil36.0/100
34Indonesia34.0/100
35Türkiye34.0/100
36Mexico31.0/100
37Egypt30.0/100
38Pakistan29.0/100
39Russian Federation26.0/100
40Nigeria25.0/100
Showing 40 of 40 countries

Topics

#corruption#governance#transparency#rule of law#institutions

Related Statistics

👥social

Press Freedom

Reporters Without Borders score (0-100). Norway leads at 92.0, while authoritarian regimes severely restrict press freedom.

Reporters Without Borders • 2024
💰economic

GDP per Capita

Gross Domestic Product per person in USD. Luxembourg leads at $135,605, while many developing nations remain below $5,000.

World Bank • 2022
👥social

Happiness Index

World Happiness Report score (0-10). Finland tops the rankings at 7.80, known for its social support and work-life balance.

World Happiness Report • 2023
👥social

Homicide Rate

Intentional homicides per 100,000 people. Japan is safest at 0.2, while parts of Latin America and Africa face severe violence.

United Nations Office on Drugs and Crime • 2021

Data Source

This data comes from Transparency International (2023).

View Original Source