Boulder, San Jose, and... Ann Arbor? These are America's top 12 tech hubs, according to Bloomberg

Score: 95.5

STEM job holders: 4.6%

Science and engineering degree holders: 13.4%

Advanced degree holders: 12.8%

Source: Bloomberg Brain Concentration Index

Score: 95.57

STEM job holders: 6.2%

Science and engineering degree holders: 13.5%

Advanced degree holders: 11.8%

Source: Bloomberg Brain Concentration Index

Score: 95.83

STEM job holders: 5.7%

Science and engineering degree holders: 12.8%

Advanced degree holders: 12.5%

Source: Bloomberg Brain Concentration Index

Score: 96.4

STEM job holders: 4.1%

Science and engineering degree holders: 14.2%

Advanced degree holders: 16.2%

Source: Bloomberg Brain Concentration Index

Score: 96.97

STEM job holders: 5%

Science and engineering degree holders: 14%

Advanced degree holders: 16.1%

Source: Bloomberg Brain Concentration Index

Score: 97.43

STEM job holders: 5.5%

Science and engineering degree holders: 14.9%

Advanced degree holders: 15.9%

Source: Bloomberg Brain Concentration Index

Score: 98.1

STEM job holders: 5.6%

Science and engineering degree holders: 15.1%

Advanced degree holders: 18%

Source: Bloomberg Brain Concentration Index

Score: 98.37

STEM job holders: 6.6%

Science and engineering degree holders: 17.6%

Advanced degree holders: 15.3%

Source: Bloomberg Brain Concentration Index

Score: 98.67

STEM job holders: 6.4%

Science and engineering degree holders: 15.8%

Advanced degree holders: 17.4%

Source: Bloomberg Brain Concentration Index

Score: 98.97

STEM job holders: 6.6%

Science and engineering degree holders: 15.5%

Advanced degree holders: 18.3%

Source: Bloomberg Brain Concentration Index

Score: 99.63

STEM job holders: 10.2%

Science and engineering degree holders: 21.1%

Advanced degree holders: 17.3%

Source: Bloomberg Brain Concentration Index

Score: 99.80

STEM job holders: 8.1%

Science and engineering degree holders: 19.5%

Advanced degree holders: 18.5%

Source: Bloomberg Brain Concentration Index