5. San Jose-Sunnyvale-Santa Clara, CA
Per Capita Personal Income: $81,592
U.S. Rank: 3
GDP: $235,222 millions
U.S. Rank: 15
Of course, we are coming back once again to California with our list of America’s 25 richest cities. San Jose is rich thanks to the high technology companies and being at the center of Silicon Valley (the actual one, not the TV show). Although this sounds great, it did make the city a harsher place to live. San Jose has one of the highest costs of living in the country and one of the priciest housing markets in the world.