I'm in my 30's and I'm 5'1. I stopped growing in like the 5th grade - lol. My entire family is tall. Somehow the height thing just skipped over me. It's a bummer sometimes because I can't always reach things up on a shelf or look up at one of my cousins without getting dizzy. But at least I can still shop in the kids/juniors department.
I totally know how you feel! I'm a little over 5'2" and like you I stopped growing early on. My family is tall! I have a 14 year old brother who is pushing 6'. I've been looking up at him for years. My family enjoys my shortness though. They think it is funny when I have to stand on a chair to get something off a shelf or jump to see on top of the fridge.
Anyway, for me, anyone who I have to look up at is tall so that could be people who are 5'5" all the way to super tall!