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Ranked: The Countries With
the Lowest Corruption
Denmark has topped the corruption rankings for 8 years in a row. Only 5 countries now score above 80 — down from 12 a decade ago. The global average just hit its lowest level in over a decade. Two-thirds of all countries score below 50. Here is the complete 2025 ranking.
CPI score out of 100 where 100 = perfectly clean and 0 = completely corrupt. Bars scaled to 100. Source: Transparency International Corruption Perceptions Index 2025 (primary · directly fetched · transparency.org · 10 February 2026 · 31st edition).
The last decade tells a clear story. Countries that were improving have plateaued. Countries that were clean are slipping. Source: Transparency International CPI 2025 (primary · transparency.org).
Corruption is not just about bribery. It is about who gets the contract, who avoids prosecution, who benefits when public money disappears. The CPI measures how much of that is perceived to happen in each country’s public sector. Denmark scores 89. South Sudan scores 9. That gap tells you everything about the difference between governments that serve their people and governments that exploit them.
“Two-thirds of the world scores below 50 on corruption. Countries with clean governments are not the norm. They are the rare exception.”
Denmark Has Won the Same Trophy for 8 Years — Here’s Why
Denmark scores 89. It has led the world for 8 consecutive years. What does it actually do differently? Strong independent institutions that can’t be easily pressured. A free press that investigates without fear. Public services that are digital, transparent, and audited. A political culture where public office is seen as a duty, not an opportunity. None of this happened by accident. It was built deliberately, over decades, and defended every year.
Countries That Fixed Corruption — and the Blueprint They Used
Estonia gained 6 points since 2016 (from 70 to 76) — the biggest improvement in Europe. South Korea gained 10 points (from 53 to 63) — the fastest major-economy improvement in the world. How? Both countries digitised their public services to eliminate human discretion. They professionalised their civil services. They embedded accountability into everyday government — not just as law but as practice. TI confirmed these as the three main drivers of improvement.
The Catch: High Scores Don’t Always Mean Clean Hands
Switzerland scores 80. Singapore scores 84. Both rank among the world’s least corrupt. But Transparency International notes both have faced scrutiny for facilitating the movement of corrupt money from other countries. The CPI only measures domestic public sector corruption — not whether a country enables corruption elsewhere through financial secrecy, shell companies, or lax money-laundering rules. A high score is necessary. It is not sufficient.
