A new University of Virgina study shows how very spiky it is:
Their analysis shows that most foreclosures have been concentrated in California, Florida, Nevada, Arizona and a modest number of metropolitan counties in other states. In fact, they claim that “66 percent of potential housing value losses in 2008 and subsequent years may be in California, with another 21 percent in Florida, Nevada and Arizona, for a total of 87 percent of national declines.” …
Although there are pockets of substantial declines, claims that overall housing values have tanked nationwide are exaggerated, they said. “In the Washington, D.C. metropolitan area, for example, prices have barely changed in the District of Columbia, Alexandria and Arlington County, and parts of Fairfax County in Virginia …
The number of foreclosures usually were lower in central cities than in some suburban counties, probably due to less demand in those suburbs…
Here are maps, tables for metro areas, and the full study.


