Though here, and it may come off as a surprise, but according to I believe the 2000 U.S. Census Data, Korean-Americans are actually the poorest income "group" among Asian-Americans.
This report provides a portrait of the Asian population in the United States and discusses the eleven largest detailed Asian groups at the national level, for example: Asian Indian, Cambodian, and Japanese.1 It is part of the Census 2000 Special Reports series that presents several demographic, social, and economic characteristics collected from Census 2000. The Asian population is not homogeneous. It includes many groups who differ in language, culture, and length of residence in the United States. Some Asian groups, such as the Chinese and Japanese, have been represented in the United States for several generations. Other groups, such as the Hmong, Vietnamese, Laotians, and Cambodians, tend to be comparatively recent immigrants.
Of the total United States population, 11.9 million people, or 4.2 percent, reported they were Asian. This number included 10.2 million people, or 3.6 percent, who reported only Asian and 1.7 million people, or 0.6 percent, who reported Asian and at least one other race. Table 1 shows the number of people reporting a single race from among the detailed Asian groups and a tally of the number of times the group was reported