Transgender
One effort to quantify the population gave a "rough estimate" that 0.3 percent of adults in the US are transgender, overlapping to an unknown degree with the estimated 3.5 percent of US adults (1-in-30) who identify as LGBT. More recent studies released in 2016 estimate the proportion of Americans who identify as transgender at 0.5 to 0.6%. This would put the total number of transgender Americans at approximately 1.4 million adults ().
National Center for Transgender Equality
In 2008, NCTE partnered with the National LGBTQ Task Force and Pennsylvania State University's Center for the Study of Higher Education to launch the National Transgender Discrimination Survey (NTDS). Then the largest study of transgender individuals in the United States, the NTDS surveyed 6,450 transgender residents about their experiences of discrimination in areas such as employment, housing, health care, and education, among others. The findings of the NTDS have since informed public policy in the United States, such as at the Department of Housing and Urban Development, which based new housing regulations to protect LGBTQ people on the study.