That's a very tough question to answer because the two topics aren't as rigorously researched. Quick google searches seem to say around 0.5% of the population f

That's a very tough question to answer because the two topics aren't as rigorously researched. Quick google searches seem to say around 0.5% of the population for intersex and 0.3% of the population for transgender. But again, those figures are probably problematic and shouldn't be taken as fact.