https://www.cnet.com/news/silicon-valley-middle-class-earns-seven-times-the-us-average/ >Sunny Palo Alto. Population 67,000. A suburb home to 2,300 startups, where the median income is double the US average and people earning up to $400,000 a year consider themselves "middle class." >Welcome to Silicon Valley, where people earning almost seven times the national average are struggling.