A year ago, The Salt Lake Tribune published an analysis of foreclosure trends in Utah that predicted the crisis would worsen before it improved.

   The Tribune has since analyzed and mapped nearly 77,200 address-level records on foreclosures filed in Utah between July 2008 and December 2010, as provided by RealtyTrac, an Irvine, Calif.-based company that tracks U.S. foreclosures.

   Key findings: The crisis has indeed worsened and is estimated to have to have affected at least 20,000 homeowners and perhaps as high as three times that number across the state. Data suggests it has deepened in housing boom subdivisions and middle- and moderate-income neighborhoods across the Wasatch Front, while also spreading forcefully out from metropolitan areas to lesser-populated cities and towns. (Click here for the story.)

   The zipcode-level data offered below includes quarterly totals on notices of trustee sales (NTSs)-- the culminating event in a foreclosure, where the delinquent homeowner loses their home and the property is scheduled to be sold at auction.

   Zip codes not listed in the pulldown menu had little foreclosure activity and were not targeted for data collection by RealtyTrac.

   Unsure which zip code? Click here to look up zip codes for a city.