Portland home values were flat in August (up 0.1%) and down 7.6% since August of last year. Except for a couple of outliers, most of the 20 metro areas Case-Shiller tracks did not budge much.
One interesting tidbit, home values are so low in Detroit that it actually had the biggest annual gain, increasing 2.7%. In fact, only Detroit and Washington, DC (0.3%) were in positive territory.
The Wall Street Journal has their sortable table ready for your manipulation.