5'6". Seems to be pretty common around here. When I first started transition, I bought lift shoes that made me 2 inches taller. It was a hell of a rush, but for those who have never worn them, it's basically like wearing a pair of high heels. Hence, pain in the back, legs, feet, etc. Just knowing they're available is good, though.
That said, I've never had any issues with my height. I live in Colorado, where there is a large Hispanic population, so in many places I go I tend to actually be TALLER than most other guys. It's pretty sweet.