zmetro.com

Kauffman Foundation [PDF]:

Two especially surprising findings from the study are: (a) that the Latino rate of entrepreneurship increased from 0.38 percent in 1996 to 0.48 percent in 2004, which was higher than the white, non-Latino rate of 0.39 percent; and (b) that immigrants have substantially higher rates of entrepreneurship than native-born individuals. The average rate of entrepreneurship for immigrants was 0.46 percent compared to 0.35 percent for the native-born.
New entrepreneurship activity is highest in the West. Other regions have similar rates of entrepreneurship.