4. Boston-Cambridge-Newton, MA-NH
Per Capita Personal Income: $68,292
U.S. Rank: 7
GDP: $396,549 millions
U.S. Rank: 9
Speaking of high costs of living, here we have Boston. Despite the high cost of living, Boston still attracts more than 350,000 college students a year, which has a major impact on the city’s economy that is ranked among top 30 in the world (compared to other cities). Other contributors are high technology industry alongside tourism and financial services.