The City of San Jose is the largest city in Silicon Valley, with just over 1 million residents, and a look at this large and highly populated area will give you a quick sense of what the region is like, generally.
Today I found an online document produced by the San Jose Planning Department which covers a wealth of information, including the largest employers, educational resources, annual rainfall, cost of rentals by number of bedrooms in the apartment, residential real estate median & average sale prices (data is a little old on home buying prices, so don’t use those numbers), and demographics (education, income, race, employment and more).
Here’s the info:
“FACT SHEET: HISTORY & GEOGRAPHY”
Department of Planning, Building & Code Enforcement, Planning Division
https://www.sanjoseca.gov/DocumentCenter/View/780