Us home values are poised to drop by more than $1.7 trillion this year amid rising foreclosures and the expiration of homebuyer tax credits, said Zillow, a provider of home price data.

This year’s estimated decline, more than the $1.05 trillion drop in 2009, brings the loss since the June 2006 home-price peak to $9 trillion, the Seattle-based company said yesterday.

In the New York metro area, Zillow is estimating that home values declined by $103.7 billion in 2010.

Since the June 2006 home-price peak, New York homeowners have kissed $676.6 billion in value good-bye.

And the carnage isn’t over yet, according to Zillow. “It’s definitely going to continue into 2011,” Stan Humphries, Zillow’s chief economist, said in an interview. “The back half of 2010 looked horrible and 2011 should look like the mirror image of that.”