The largest Vietnamese population in the United States is in California.

Texas.

Florida.

New York.

The largest Vietnamese population in the United States is in California.

Explanation:

There are more than 2 million people in the United States who identify themselves as Vietnamese Americans; 40% of them live in California and 12% in Texas.

Vietnamese American mostly arrived to California. Cities like San Jose, Garden Grove, Westminster and San Diego have large groups of Vietnamese Americans within its populations. Also a great group of Vietnamese people settled in Texas, mainly in Houston.

California has the most vietnamese people in the United States.