About 5% of young adults in the U.S. say their gender is different from their sex assigned at birth

Pew Research -  A new Pew Research Center survey finds that 1.6% of U.S. adults are transgender or nonbinary – that is, their gender differs from the sex they were assigned at birth. . . Adults under 30 are more likely than older adults to be trans or nonbinary. Some 5.1% of adults younger than 30 are trans or nonbinary, including 2.0% who are a trans man or trans woman and 3.0% who are nonbinary – that is, they are neither a man nor a woman or aren’t strictly one or the other. ... This compares with 1.6% of 30- to 49-year-olds and 0.3% of those 50 and older who are trans or nonbinary.