That's a very, very small percentage of the population.

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. (Due to rounding, subtotals may not add up to the total.) This compares with 1.6% of 30- to 49-year-olds and 0.3% of those 50 and older who are trans or nonbinary.