Home prices continued to fall in December across the U.S., according to a recent Standard & Poor's/Case-Shiller home price index, which was released yesterday.

Its 20-city composite index showed a 2.5 percent decrease in single-family home prices in December from the month before, a decline larger than the 2.3 percent drop seen in November, according to S&P. Overall, prices fell 18.5 percent in December from December 2007, according to S&P.

"There are very few, if any, pockets of turnaround that one can see in the data," Reuters quotes David Blitzer, chairman of S&P's index committee, as saying. "Most of the nation appears to remain on a downward path."

Which cities came out on top in the composite and which came out on the bottom? Well, there weren't really any winners, but Denver saw the smallest decline -- 1.50 percent -- while Phoenix experienced the greatest drop in home prices: 5.06 percent:

 City  Month to month % change                    Year to year % change 
 Phoenix   -5.06                                                      -33.96
 Las Vegas   -4.81                                                      -32.98
 Boston    -1.28                                                       -7.01
 Denver   -1.50                                                      -4.00

Want another look at the 20 cities tracked by the index? Check out "10 Best and 10 Worse U.S. Housing Markets" at Forbes.com.

For data on all 20 cities tracked by the index, visit Standard and Poor's website: www.homeprice.standardandpoors.com.—Lauren Baier Kim