I've seen many studies of tech hiring/jobs across the country. I'm sure you can find any research you're looking for.
http://www.bls.gov/oes/current/oes_41860.htm#15-0000 http://www.bls.gov/oes/current/oes_35620.htm#15-0000
Edit: Also, counting the total headcount of ppl writing code in the area is not a measure of how many choices you have in the job market.
Still doesn't get you into more choice than NYC.
If you don't want to use head count (and I agree there is nuance), what do you want to use? Thus my citation needed request.
The vast majority of software developers work in IT departments writing line-of-business applications in Java, .Net, etc. Certainly NYC has a vast number of these jobs. But these roles are all very similar. You're working as a cost-center, in a supporting role, for people who ultimately don't care about software. This is true whether you're a developer for Pfizer or Jet Blue or NBC Universal or any of the other companies based in
I really find the hollywood analogy apt. Yes, you can certainly find work as an actor in NYC. But the epicenter of the industry is in Hollywood.
Anyway, happy new year!