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 ().
LGBT culture
According to a study done by the Williams Institute of UCLA on "How Many Adults Identify as Transgender in the United States?", they found that younger adults are more likely to identify as transgender than older adults. This may be a result of a newly wider acceptance of transgender people from the communities, allowing for those who identify as transgender to have a greater voice. In their research they found that an estimated 0.7% of adults between the ages of 18 and 24 identify as transgender, while 0.6% of adults age 25 to 64 and 0.5% of adults age 65 or older identify as transgender.