Return to Sender: Vacancy Data Updated on PolicyMap Tips on ZIPs – Part III: ZIP code Boundaries Tips on ZIPs – Part II: The History US Postal Codes New Vacancy Update in Reports December 2009 Updates Top Residential & Commercial Vacancy Rates for Q3 2009 Top Census Tracts with the Highest Residential Vacancy New on PolicyMap for June 2009 New on PolicyMap for April 2009
