How many ethnic groups are there in Native Americans?

The United States is a multi-ethnic country with great racial differences. There are 3/kloc-0 ethnic groups with a population of more than one million, and there are more ethnic groups with a population of less than one million.

Most Americans (74.67% in 2004) are descendants of European white immigrants. These immigrants settled in the first colonies at that time, and many of them came to the United States in the "Southern Reconstruction Movement" after the Civil War. Due to the high birth rate of non-white immigrants and ethnic minorities, the proportion of non-Hispanics is gradually decreasing. The main European lineages are Germany (15.6%), Ireland (10.8%), England (8.7%), Italy (5.6%) and Scandinavia (3.7%). Many people also come from Slavic countries, such as Poland and Russia. Other immigrants come from eastern Europe, southern Europe and French-speaking Canada. There are 4.4 million Native Americans, including Indians, and about 35% of them live in government-planned aboriginal reservations. Asian Americans (excluding Hawaiians and Pacific Islanders) are the third largest minority, accounting for 5% in the 2005 census. Most Asian Americans live on the west coast and Hawaii, and the largest group of Asians come from the Philippines, China, India, Viet Nam, South Korea and Japan. Hispanics are the second largest ethnic group in the United States (second only to Germans), accounting for 65,438+04.1%of the total population (in 2004), of which 66% are immigrants from Mexico, and it is expected to continue to grow at a high speed in the coming decades. African-Americans are all over the United States, but the black area in the south is the largest. African-Americans (or blacks), mainly from Africa, were slaves before19th century, and now the number is 35 million (12.5438+02%).