Athletics
State Championship Victories since 1942 (39 total) - Blue Hen Conference "Flight A" school
- Football (1976, 1984, 1985, 1997, 1998, 1999, 2000, 2001, 2003, and 2004)
- NHS Football last reached the State Championship Game in 2011 (lost).
- Currently is the all-time leader state championship victories.
- Coach Butch Simpson currently holds the state record for most career coaching victories in football (257) - active streak
- Girls Swimming and Diving (1978, 1980, 1981, 1989, 1990, 1992, 2003, and 2004)
- Baseball (1970, 1971, 1974, 1984, 1990, and 1996)
- NHS Baseball last reached the State Championship Game in 2007 (lost).
- Volleyball (1976, 1981, 1982, 1983, 1984, and 1990)
- Boys Basketball (1982, 1987, and 1990)
- NHS Basketball last reached the State Championship Game in 2011 (lost).
- Boys Cross Country (1962, 1971)
- NHS Boys Cross Country finished 2nd in the DIAA Championship in 2012
- Boys Swimming and Diving (2005)
- Boys Indoor Track and Field (2004)
- Boys Tennis (1996)
- Softball (1977)
Newark Teams that have not won a State Championship
- Girls Basketball
- Girls Cross Country
- Field Hockey
- Golf
- Boys Lacrosse
- Girls Lacrosse
- Boys Soccer
- Girls Soccer
- Girls Tennis
- Girls Indoor Track and Field
- Boys Outdoor Track and Field
- Girls Outdoor Track and Field
- Wrestling
Club Sports
- Ice Hockey (Delaware Scholastic Hockey Association)
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