Home prices across the Sacramento region posted another hefty gain in April, and are now a third higher than they were a year ago, according to a new report by industry watcher Dataquick.

In Sacramento County, the median sales price of a detached resale home rose from $208,000 in March to $215,000 in April. The April price was up nearly 33 percent from April 2012, when it stood at $162,000, Dataquick said.

El Dorado’s median sales price for resale detached homes also rose 33 percent from April 2012 to April 2013. Placer County’s median jumped by 24 percent. Yolo County’s rose by 17 percent.

The median is the point at which half of homes sell for more and half sell for less.

Experts say the big hikes in the median are a sign that home values are rising by double digits but also show the market is shifting from one dominated by investors snapping up foreclosures to one in which homeowners are re-entering the market via traditional sales.