As far as I know, NY State does not award official State Championships to teams in individual sports such as Wrestling. There are championships for individual athletes in each weight class and then a championship for the Section (Islip wrestlers would be part of the Section XI team). They have been the best team in the State in wrestling for the past few years I believe though.
They keep individual team scores at the state championships:
44th Annual NYSPHSAA State Wrestling Championships
at Nassau Veterans Memorial Coliseum, Uniondale, NY
February 24-25, 2006
Division 1 Sectional Team Scores Jump to Division 2
Section 5 ..... 246
Section 11 .... 229
Section 8 ..... 192.5
Section 2 ..... 157.5
Section 9 ..... 148
Section 4 ..... 133.5
Section 1 ...... 88.5
Section 3 ...... 88.5
Section 6 ...... 84
CHSAA .......... 40
PSAL ........... 21
Section 10 ..... 13
Division 1 Individual Team Scores
Team Score
Team Score
1
Islip
83
2
Valley Central
62.5
3
Wayne
49.5
4
Brockport
49