I did some quick analysis and with a little creativity it could look something like this...
Of course it was a quick analysis of current team sizes and trying to map the geographical locations...
This creates a Standard Deviation of about 20 per district... The current Standard Deviation is about 188
Just playing with numbers

Of course this would require change and as we all know too well... change is a difficult thing
Dist Wrestlers
1 984
2 970
3 948
4 938