Philadelphia

Share of jobs in strong industries: 39.8%
Number of workers: 560,390
Metro area unemployment rate: 6.1%
Agriculture jobs: 0.13%
Professional, Scientific, and Technical jobs (legal, accounting etc.): 6.32%
Education jobs: 9.99%
Health-care jobs: 15.99%
Public Administration (Government) jobs: 7.33%

The city has plenty of large hospitals and educational institutions, including the University of Pennsylvania, Jefferson Medical School, and Temple University. It also has a large number of lawyers. Tourism could do fine in a downturn if Northeasterners decide to travel locally and foreigners continue to stream in to take advantage of the weak dollar. But Philadelphia has many stores and restaurants, which might get hit hard in a downturn.