TJR--
I'm not arguing that this is what you found. I'm just saying that those numbers don't agree with my observations.
Maybe ME is on to something. He's right that the Scandinavians in Minnesota generally are taller than most other groups--and on top of that, Minnesota's Hispanic and Asian populations are significantly smaller (in quantity, not height) than most of the country, and those groups will generally lower the average height of an area's population.
And I'm sure it also has to do with the way I grew up, and how it affected my perception--My three sisters are 6'1", 6'2", and 6'3", and none of them really consider themselves to be that exceptionally tall. We grew up in a small town, where our high school graduating classes averaged about 50 students, and none of my sisters was the tallest girl in their class--they each had two to four female classmates taller than them. At 6'4", I was only the fifth tallest boy and seventh tallest overall in my graduating class of 44, with several other kids (of both genders) right behind me between 6'2" and 6'4". And this height wasn't anything peculiar to our town, either--every school in our conference generally had teams full of basketball, football, and volleyball players that all consisted of players of those heights, despite them all having class sizes similar to ours from which to draw.
So no, when you grow up in that type of situation, 6'4" isn't tall. And any man under 5'9" or woman under 5'7" is downright puny.
On the other hand, my little brother is 6'9"--who I will definitely grant is "tall". Although not quite as much as my 6'11" cousin.