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In terms of educational attainment, 28 percent of the foreign-born labor force 25 years and over had not completed high school in 2005.
In comparison, about 7 percent of the native-born labor force had not completed high school.
About equal proportions of both the foreign and native born had a bachelor’s degree and higher (31 and 33 percent, respectively).
These data are from the Current Population Survey. Find more information in "Foreign-born Workers: Labor Force Characteristics in 2005" (PDF) (TXT), news release USDL 06-640.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Educational attainment of foreign-born labor force, 2005 at https://www.bls.gov/opub/ted/2006/apr/wk4/art01.htm (visited June 04, 2023).