what i always wonder about this massive income inequality in silicon valley is, where are the non high paying people living? you know, people who are not highl

what i always wonder about this massive income inequality in silicon valley is, where are the non high paying people living? you know, people who are not highly trained professionals with advanced degrees but who are still required to make up a community. (bakers, school teachers, nurses, technical craftsman, caretakers etc). It is my understanding that those people make signficantly less money (more on the "standard" level most western-europeans make. say 30kEUR a year), But where do these people live?!