San Jose is the land of opportunity — or used to be, writes Alana Semuels in The Atlantic‘s City Lab. “A child born in the early 1980s into a low-income family in San Jose had a 12.9 percent chance of becoming a high earner as an adult,” according to a 2014 study by economist Raj Chetty. That’s the best upward mobility in the country.
“Children in the 25th percentile of income at birth in San Jose ended up, on average, in the 45th percentile as adults, while kids in Charlotte who started out in the 25th percentile of income only ended up in the 36th percentile as adults,” she writes.
But do today’s poor kids have the same chance to thrive in Silicon Valley?

The percentage chance that a child born in the early ‘80s in the bottom quintile of income made it to the top quintile in selected cities.(Datawrapper / Equality of Opportunity Project)
“San Jose used to have a happy mix of a number of factors—cheap housing, proximity to a burgeoning industry, tightly-knit immigrant communities—that together opened up the possibility of prosperity for even its poorest residents,” she writes. “But in recent years, housing prices have skyrocketed, the region’s rich and poor have segregated, and middle-class jobs have disappeared.”
San Jose is a city of immigrants — 38 percent of the city’s population is foreign-born, writes Semuels. Researchers found “a low prevalence of children growing up in single-parent families, and a low level of concentrated poverty.”
Tri Tran and his brother fled Vietnam on a boat in 1986. Tran was 11. They moved in with an aunt and uncle, a semiconductor factory tech and a data entry worker who earned enough to buy a small home.
Their uncle, who knew highly educated engineers at work, urged the boys to go to MIT. Tran founded the food-delivery start-up Munchery, which is valued at $300 million. “I think that in this land, if you are really determined and focused, you can go pretty far,” he told her. His brother is an engineering professor at Johns Hopkins.
Many of San Jose’s low-income families in the 1980’s were Vietnamese refugees who valued education highly and pushed their children to work hard in school. Others were Mexican immigrants with a strong work ethic. In San Jose, the poor are very likely to be working poor.
I don’t think middle-income jobs are disappearing in Silicon Valley, as Semuels suggests. There are lots of jobs — and not enough housing. A couple with middle-income jobs can’t afford to live here — unless their parents can loan them money to get into the inflated housing market. The median price for a Silicon Valley home is $875,000. The poor are being pushed farther away from the jobs.