The U.S. Department of Commerce's Census Bureau published quarterly data on nationwide rental vacancies, defined as the proportion of rental housing inventory that is vacant for rent. For the quarter ending in December 2015, vacancy rates for rental housing was reported by FindTheHome to be at 7%, a decrease of 0.30 percentage points from the vacancy rate of 7.3% last quarter, but an increase of 0.20 percentage points from the vacancy rate of 6.8% in June 2015. The homeowner vacancy rate reached a high of 11.1% in September 2009.

The Census also estimates rental housing inventory, publishing figures for the number of homes vacant for rent. There were 3.23M households vacant for rent this quarter, down 4.66% from the reported 3.39M rental vacancies last quarter.

Since data collection started, rental housing inventory reached an all-time low of 2.89M in December 2000.

The Census also provided figures for rental occupancy. Out of 135M total housing units, 42.6M housing units were reported as renter occupied this quarter by the Census.