I see the numbers together for per capita population. Good news is this year, KS leads the nation in per All Americans Per capita. But compare qualifiers per capita, we don't as well.

Analysis
AA per capita

KS= 1 per 915K persons in state
OH =1 per 955K persons
IA= 1 per 989K persons
PA= 1 per 1,035K persons
WI= 1 per 1,707K persons
MI= 1 Per 1,804K Persons
IN= 1 Per 2,091K Persons
MN= 1 per 2,566K Persons
NY= 1 Per 2,751K Persons
NJ= 1 per 2,906K persons
OK= 1 Per 3,547K Persons
IL =1 Per 4,254K Persons
MO= 1 Per 5,800K Persons
CA= 1 Per 7,226K Persons

NCAA Qualifiers Per Capita

IA= 1 per 165K
Pa= 1 Per 222K
OH= 1 Per 370K
NJ= 1 Per 396K
IL= 1 per 580K
OK =1 Per 591K Does not Include Mark Perry
WI= 1 Per 657K
MI= 1 Per 773K
MO= 1 Per 829K
MN =1 Per 855K
KS= 1 per 915K
CA =1 per 1,070K

One year doesn't mean much, but i'd expect prior years numbers to be close. My conclusion is KS is developing its top wrestlers, but the depth does not follow like some of the top wrestling states (OH, PA, IA, NJ).

Population is somewhat relevant statistically, but still you have to discount it somewhat. California has 36m, so thats a lot of people that never have heard of wrestling nor less participate in it.