9. Orange County, Calif.

Tech Employment Growth, 2015-2016: 11.8 percent

Change in Momentum, 2013-2016: 11.3 percent

A few hundred miles south, tech employment in Orange County soared 23 percent from 2011 to 2016, pulling up wages nearly 11 percent, to an average annual salary of $99,256. The highest average annual salaries? Computer and information systems programmers: $142,830, and software developers and programmers: $109,418.