The U.S. Center for Transgender Equality has published the 2015 U.S. Transgender Survey, with summary and details, here.
The report notes the 29% live in poverty compared to 14% for the general population. 15% report being unemployed. 10% have experienced violence from family members. 54% have faced physical assaults.
Vox has an explainer and detailed story on the report by German Lopez here.