I wonder the following - What % of startups are actual tech companies? - What is tech culture like in every city (aggregate data from meetup, event tech confe

I wonder the following - What % of startups are actual tech companies? - What is tech culture like in every city (aggregate data from meetup, event tech conferences, etc) - Number of entry tech jobs for each city compared to number of startups, etc - Specific tech job demographics keyword searches (PHP, etc) - Wages, expenses comparison - Census data, of the population in each city, what is median / mode wage of data? How many techworkers are there ratio wise (Silicon Valley, vs New York City). How are techworkers defined here (video production / graphic designers -> are they included?) - How are different cities calculated in sizing? Radius distance from city center, zipcodes associated, etc? (For instance, most cities are 25 miles radius from what I've resaerched, san fransisco is about 15 miles radius or even less for that given specific population minus silicon valley /palo alto)