STEM is science, technology, engineering, and mathematics. STW is skilled technical workforce. The STW is made up of STEM workers without a bachelor's degree (BA). Concentration is measured as those employed in the STW or the STEM workforce with a bachelor's degree or above as a percentage of total employment in each state. High concentrations of STW or STEM workers with a bachelor's degree or above are the upper quartiles of the distributions of concentration for each (15.1% to 16.1% for STW and 11.2% to 15.0% for STEM workers with bachelor's degree or above). Data include workers ages 16–75 and exclude those in military occupations or currently enrolled in primary or secondary school.