Above list was wrong...
This is correct:
Manhasset - 5
Smithtown East - 3
Chaminade - 3
Syosset - 1
Sachem N - 1
Dear Park - 1
Bay Shore - 1
St. Anthony's - 1
CHS - 1
Ward Melville - 1
Plainedge - 1
Staples CT - 1
Mount Sinai - 1
Commack - 1
Let's not forget that the 5 Manhasset kids went to the NYS Championship game in 2015 and SE was in the LIC in 2015...
14 schools represented out of a roster of 22 is pretty good.