How many Vietnamese peoples live in us?

As a relatively recent immigrant group, most Vietnamese Americans are either first- or second-generation Americans. They have the lowest distribution of people with more than one race among the major Asian American groups. As many as one million people who are five years and older speak Vietnamese at home-making it the seventh-most spoken language in the United States. As refugees, Vietnamese Americans have some of the highest rates of naturalization. In 2000, 44% of foreign-born Vietnamese are American citizens, the highest rate among all Asian groups.[2] In the 2006 American Community Survey, 72% of foreign-born Vietnamese are naturalized US citizens; this combined with the 36% who are born in the United States makes 82% of them United States citizen in total. Of those born outside the United States, 46.5% entered before 1990, 38.8% between 1990 and 2000, and 14.6% entered after 2000.[1].

in 2006 there were about 1,475,798 Vietnamese immigrants in the US.