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• Customer support: For Zillow customer service questions, please visit the Zillow Help Center.
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• ZTRAX: Learn about the Zillow Transaction and Assessment Database (ZTRAX), the nation's largest real estate database available free to qualified academic, nonprofit and government researchers. ZTRAX is distributed through ICPSR at the University of Michigan. Visit the ZTRAX page to learn more and apply for access.
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You can also explore free Zillow Research data through direct downloads at zillow.com/research/data, including historical datasets for states, metros, cities, counties, ZIP codes and neighborhoods. Available metrics include the Zillow Home Value Index (ZHVI), Zillow Observed Rent Index (ZORI) and other housing market data.