How tall is your toddler (three-year-olds)?

My son will be three years and three months old in the first week of August. He's 41 inches tall and seems to be taller than most of the children around his age. When he was two and half people started asking if he was three and a half or four. I'm 5'6" with a mother who is my height and a father and brothers who are all around six feet tall. My husband is about 5'8" with a father who is about the same height and a mother who is a tiny 4'11 3/4" (she's the runt of her family). Our son seems to be unusually tall considering the fact that he's above the 90th percentile for height when he has parents of average height. He stands a good chance of being over six feet tall if he continues his growth curve until he reaches his final height. Do you think he'll stay on his growth curve and be tall as an adult? My cousin is 6'2" at the age of 17 and she is taller than her older brother. I have another, more distant cousin who is over seven feet tall.