These are averages. SF/BOS/SEA/NYC/etc all have higher salaries. It also is a bit vague as to what a "tech worker" is, and these articles tend to include all of

These are averages. SF/BOS/SEA/NYC/etc all have higher salaries. It also is a bit vague as to what a "tech worker" is, and these articles tend to include all of IT in that.