Most of the largest STEM occupations were related to computers and information systems. With employment of nearly 750,000, applications software developers was the largest STEM occupation. Computer user support specialists and computer systems analysts each accounted for over a half a million jobs.
Wholesale and manufacturing sales representatives of technical and scientific products (334,010) was the largest STEM occupation not related to computers. Mechanical engineers and civil engineers, also non-computer-related STEM occupations, each accounted for over a quarter of a million jobs.
But not all STEM occupations were large. Some were among the smallest occupations in the country, including mathematical technicians, with only 820 jobs. Astronomers, postsecondary teachers of forestry and conservation science, and mathematical science occupations, all other, each had employment of less than 2,000.