Assuming this is correct this was as of 2011. Maybe @Wrestleknownothing can fill in the gaps
All-Americans Individual/Total Years 1961-2011
Pennsylvania
295
504
Iowa
186
350
Ohio
177
313
Oklahoma
134
271
Illinois
137
242
California
152
240
New Jersey
123
213
New York
133
211
I
Individual AA's/Total 1928-1960
Oklahoma
160
260
Iowa
72
113
PA
73
98
Illinois
42
70
New York
21
29
New Jersey
19
29
Indiana
19
27
Michigan
15
25
Minnesota
16
23
Kansas
10
14
Ohio
12
13