““A household can bring in $120,000 to $140,000 in most places throughout the Bay Area, and still not be able to affording housing within a comfortable 30 percent of their monthly expenses,” Riggs explains”
— SF Chronicle https://www.sfgate.com/bayarea/article/What-does-it-mean-to-be-middle-class-in-the-Bay-13011118.php#photo-16234508