 On 31 May 2011 , an unreleased draft report based on a survey commissioned by the US Agency for International Development ( USAID ) challenged the Haiti earthquake death toll and several damage estimates . The unpublished report put the death toll between 46 @,@ 000 and 85 @,@ 000 and put the number of displaced persons at 895 @,@ 000 , of which only 375 @,@ 000 remained in temporary shelters . The unreleased report , which compiled its figures from a door @-@ to @-@ door survey , was done by a Washington consulting firm , LTL Strategies . A US State Department spokesperson said the report had inconsistencies and would not be released until they were resolved . As of January 2012 , USAID has not released the report and states at its website that 1 @.@ 5 million people were displaced , of which 550 @,@ 000 remain without permanent shelter . The most reliable academic estimate of the number of earthquake casualties in Haiti ( over 95 % were in the immediate Port @-@ au @-@ Prince area ) " within six weeks of the earthquake " appears to be the 160 @,@ 000 estimate in a 2010 University of Michigan study . 
 On 31 May 2011 , an unreleased draft report based on a survey commissioned by the US Agency for International Development ( USAID ) challenged the Haiti earthquake death toll and several damage estimates . The unpublished report put the death toll between 46 @,@ 000 and 85 @,@ 000 and put the number of displaced persons at 895 @,@ 000 , of which only 375 @,@ 000 remained in temporary shelters . The unreleased report , which compiled its figures from a door @-@ to @-@ door survey , was done by a Washington consulting firm , LTL Strategies . A US State Department spokesperson said the report had inconsistencies and would not be released until they <a href='uninflect' title='1'><mark>were</mark></a> resolved . As of January 2012 , USAID <a href='been_done' title='2'><mark>has</mark></a> not released <a href='None' title='3'><mark>the</mark></a><a href='negative_concord' title='4'><mark>report</mark></a> and states at its website that 1 @.@ 5 million people <a href='uninflect' title='5'><mark>were</mark></a> displaced , of which 550 @,@ 000 remain without permanent shelter . The most reliable academic estimate of the number of earthquake casualties in Haiti ( over 95 % <a href='uninflect' title='6'><mark>were</mark></a> in the immediate Port @-@ au @-@ Prince area ) " within six weeks of the earthquake " <a href='uninflect' title='7'><mark>appears</mark></a> to be the 160 @,@ 000 estimate in a 2010 University of Michigan study . 
On 31 May 2011 , an unreleased draft report based on a survey commissioned by the US Agency for International Development ( USAID ) challenged da Haiti earthquake death toll and several damage estimates . Tdaunpublished report put the death toll between 46 @,@ 000 and 85 @,@ 000 and put the number of displaced persons at 895 @,@ 000 , of which only 375 @,@ 000 remained in temporary shelters . The unreleased report , which compiled its figures from a door @-@ to @-@ door survey , was done by a Washington consulting firm , LTL Strategies . A US State Department spokesperson said the report had inconsistencies and would not be released until they was resolved . As of January 2012 , USAID done not released no report and states at its website dat 1 @.@ 5 million pple was displaced , of which 550 @,@ 000 remain without permanent shelter . Thdaost reliable academic estimate of the number of earthquake casualties in Haiti ( over 95 % was in thedamediate Port @-@ au @-@ Prince area ) " within six weeks of the earthquake " appear to b the da @,@ 000 estimate in a 2010 University of Michigan study .