From 2003 to 2013, the number of scientists and engineers residing in the United States rose from 21.6 million to 29 million. This 10-year increase included significant growth in the number of immigrant scientists and engineers, from 3.4 million to 5.2 million.
Immigrants went from making up 16 percent of the science and engineering workforce to 18 percent, according to a report from the National Science Foundation's National Center for Science and Engineering Statistics (NCSES). In 2013, the latest year for which numbers are available, 63 percent of U.S. immigrant scientists and engineers were naturalized citizens, while 22 percent were permanent residents and 15 percent were temporary visa holders.
Of the immigrant scientists and engineers in the United States in 2013:
- 57 percent were born in Asia.
- 20 percent were born in North America (excluding the United States), Central America, the Caribbean, or South America.
- 16 percent were born in Europe.
- 6 percent were born in Africa.
- And less than 1 percent were born in Oceania.
Among Asian countries, India continued its trend of being the top country of birth for immigrant scientists and engineers, with 950,000 out of Asia's total 2.96 million. India's 2013 figure represented an 85 percent increase from 2003.
Also since 2003, the number of scientists and engineers from the Philippines increased 53 percent and the number from China, including Hong Kong and Macau, increased 34 percent.
The NCSES report found that immigrant scientists and engineers were more likely to have earned post-baccalaureate degrees than their U.S.-born counterparts. In 2013, 32 percent of immigrant scientists reported their highest degree was a master's (compared to 29 percent of U.S.-born counterparts) and 9 percent reported it was a doctorate (compared to 4 percent of U.S.-born counterparts). The most common fields of study for immigrant scientist and engineers in 2013 were engineering, computer and mathematical sciences and social and related sciences.
Over 80 percent of immigrant scientists and engineers were employed in 2013, the same percentage as their U.S.-born counterparts. Among the immigrants in the science and engineering workforce, the largest share (18 percent) worked in computer and mathematical sciences, while the second-largest share (8 percent) worked in engineering. Three occupations -- life scientist, computer and mathematics scientist and social and related scientist -- saw substantial immigrant employment growth from 2003 to 2013.