No. 6: San Francisco-San Mateo-Redwood City, Calif.

No. 6: San Francisco-San Mateo-Redwood City, Calif.

Q1 Home price index: 1.6 percent
Q1 Foreclosure rate (YOY change): 1 percent (up 56.2 percent)
Q1 90+ day delinquency rate (YOY change): 3.7 percent (up 69.5 percent)
April 2010 unemployment rate: 9.3 percent

This finance, technology, and tourism hub remains one of the country's most expensive and resilient housing markets. The market tightened after home sales jumped 58 percent year-on-year in March, according to a report by the Rosen Consulting Group and the San Francisco Association of Realtors. Despite challenges with unemployment, the housing market is projected to improve this year: Housingpredictor.com expects home prices in San Francisco city to increase 14.3 percent in 2010.