RE: AMA Sanctioned FUN FLYS
Somewhat dated, but based on present membership being about the same total, you can probably use these as a good estimate for the number of members in each district today.
I 7638
II 13675
III 14931
IV 8036
V 22213
VI 15093
VII 13299
VIII 14907
IX 6378
X 25279
XI 8515
Total 149994