A reader writes:
The National Health Interview Survey measured the shoeless height of 33,531 American white men. These are the means by region:
Height in Inches
And the percent 6'1" or over:
The differences here are small, but this might be part of the reason for height differences between country and rock singers.
I wonder if the General Social Survey asks men in different regions how tall they are. Then we could find out which part of the country has the biggest liars.