The 2025 Education First (EF) English Proficiency Index (EPI) report is based on an annual study that analyzes English language skills among high school and adult learners in 123 countries and regions worldwide. The EF EPI examines how and where English proficiency is developing, drawing on the results of 2.2 million adults who took EF’s English tests in 2024.
So, which countries demonstrate very high English proficiency, and where is it spoken at a much lower level? Browse this gallery for a brief summary of the countries that scored the most and the least points.