Updated at 7:40 a.m. Eastern.
More than 1 million American households are likely to lose their homes to foreclosure this year, as lenders work their way through a huge backlog of borrowers who have fallen behind on their loans.
Nearly 528,000 homes were taken over by lenders in the first six months of the year, a rate that is on track to eclipse the more than 900,000 homes repossessed in 2009, according to data released Thursday by RealtyTrac Inc., a foreclosure listing service.
"That would be unprecedented," said Rick Sharga, a senior vice president at RealtyTrac.
By comparison, lenders have historically taken over about 100,000 homes a year, Sharga said.
The surge in home repossessions reflects the dynamic of a foreclosure crisis that has shown signs of leveling off in recent months, but remains a crippling drag on the housing market.
The pace at which new homes falling behind in payments and entering the foreclosure process has slowed as banks continue to let delinquent borrowers stay longer in their homes rather than adding to the glut of foreclosed properties on the market. At the same time, lenders have stepped up repossessions in an effort to clear out the backlog of distressed inventory on their books.
CBS News business and economics correspondent Rebecca Jarvis reports the rapid rate at which banks have been repossessing homes is essentially a "cleaning up after the storm," and the faster they can finish that cleaning, the better for the overall housing market.
"No homeowner wants to be on a street with a foreclosed, repossessed home," says Jarvis.
The number of households facing foreclosure in the first half of the year climbed 8 percent versus the same period last year, but dropped 5 percent from the last six months of 2009, according to RealtyTrac, which tracks notices for defaults, scheduled home auctions and home repossessions.
In all, about 1.7 million homeowners received a foreclosure-related warning between January and June. That translates to one in 78 U.S. homes.
Jarvis reports that the most severely impacted state has been Nevada, where one in 17 homes went into foreclosure in the first half of this year. Florida, California, Utah and Arizona also saw huge foreclosure numbers.
"These are places where we've also seen the unemployment trends pick up," notes Jarvis.
Foreclosure notices posted monthly declines in April, May and June, but Sharga said one shouldn't read too much into that.
"The banks are really sort of controlling or managing the dial on how fast these things get processed so they can ultimately manage the inventory of distressed assets on the market," he said.
On average, it takes about 15 months for a home loan to go from being 30 days late to the property being foreclosed and sold, according to Lender Processing Services Inc., which tracks mortgages.
Assuming the U.S. economy doesn't worsen, aggravating the foreclosure crisis, Sharga projects it will take lenders through 2013 to resolve the backlog of distressed properties that have on their books right now.
And a new wave of foreclosures could be coming in the second half of the year, especially if the unemployment rate remains high, mortgage-assistance programs fail, and the economy doesn't improve fast enough to lift home sales.
The prospect of lenders taking over more than a million homes this year is likely to push housing values down, experts say.
Foreclosed homes are typically sold at steep discounts, lowering the value of surrounding properties.
"The downward pressure from foreclosures will persist and prices will be very weak well into 2012," said Celia Chen, senior director of Moody's Economy.com.
She projects home prices will fall as much as 6 percent over the next 12 months from where they were in the first-quarter.
Economic woes, such as unemployment or reduced income, continue to be the main catalysts for foreclosures this year. Initially, lax lending standards were the culprit. Now, homeowners with good credit who took out conventional, fixed-rate loans are the fastest growing group of foreclosures.
There are more than 7.3 million home loans in some stage of delinquency, according to Lender Processing Services.
Lenders are offering to help some homeowners modify their loans. But many borrowers can't qualify or they are falling back into default. The Obama administration's $75 billion foreclosure prevention effort has made only a small dent in the problem.
More than a third of the 1.2 million borrowers who have enrolled in the mortgage modification program have dropped out. That compares with about 27 percent who have received permanent loan modifications and are making payments on time.
Among states, Nevada posted the highest foreclosure rate in the first half of the year. One in every 17 households there received a foreclosure notice. However, foreclosures there are down 6 percent from a year earlier.
Arizona, Florida, California and Utah were next among states with the highest foreclosure rates. Rounding out the top 10 were Georgia, Michigan, Idaho, Illinois and Colorado.