“In the Northeast, markets with lower median prices that have avoided wide swings, such as Buffalo, are generally showing consistent price gains,” Yun said. “Even so, some of the higher cost areas are showing signs of stabilization, such as Nassau-Suffolk, N.Y., and Boston.”

Midwest: In the Midwest, existing-home sales jumped 14.5 percent in the fourth quarter to a pace of 1.38 million and are 29.9 percent above a year ago. The median existing single-family home price in the Midwest rose 1.1 percent to $141,100 in the fourth quarter from the same period in 2008, with the region accounting for the majority of metro areas experiencing double-digit gains.

Yun said markets with high unemployment rates in Ohio and Michigan experienced large price swings. “Big price gains in many Midwestern areas are due to a more normal range of home sales in contrast with predominately foreclosed sales a year ago,” he said.

South: In the South, existing-home sales rose 13.8 percent in the fourth quarter to an annual rate of 2.23 million and are 28.2 percent higher than the fourth quarter of 2008. The median existing single-family home price in the South was $153,000 in the fourth quarter, down 2.4 percent from a year earlier.

“Affordable markets in the South that have relatively better local economies are seeing healthy price gains, such as Houston, Oklahoma City and Shreveport, La.,” Yun said.