[webwright]

25% of black people live in poverty and about half have a household income of less than $50k.

I would say, in general, very few tech founders come out of poverty. I'd also say that relatively few come out of <$50k households (plenty of exceptions, here, of course). Most of the American founders I know come from pretty flush backgrounds.

Of course, I also read that the majority of funded startups are founded by people born outside of the states.