It's highly unlikely. There are 8 times more Native Americans than there are Transgendered people in the United States, and I know zero Native Americans.
Obviously, that's just a little bit of humor, but there are so few transgender people in the US that it's almost comical we even have this discussion. From googling it seems there are about 700k transgender people in the US, so a fraction of 1%.
I have no idea how to break that number down further. Transexual, transgender, whatever. I knew some guys who were constantly involved in drag shows (and looked good, too), but I don't think they'd consider themselves "trans", they just liked dressing up like women.
http://www.livescience.com/50635-bru...revalence.html
The most frequently cited estimate is that 700,000 people in the United States, or about 0.2 to 0.3 percent of the population, are transgender, though some experts say the true number is probably greater than that. However, there aren't reliable statistics on this, because neither the U.S. Census Bureau nor the Centers for Disease Control and Prevention ask people in national surveys whether they identify themselves as being a gender different from the one indicated by their physical features at birth.