Which country has contributed the most to the foreign-born population of the United States? 1) England
2) Mexico
3) India
4) China

Mexico

Explanation:

Mexico is the top country that has contributed the most to the foreign-born population of the United States. In 2018, around 11.2 million immigrants living in the U.S. were from Mexico. That's like an account of 25% of all U.S. immigrants.

After Mexico, the next largest population comes from China (6%) and India (6%).