PIAA Girls’ Swimming & Diving Team Champions
The Pennsylvania Interscholastic Athletic Association (PIAA) has crowned team champions in girls’ swimming & diving since 1977. Each classification champion and additional schools from the Western Pennsylvania Interscholastic Athletic League (WPIAL) have qualified for the PIAA Championships since its inception, with PIAA District VII claiming a total of 29 state champions in the sport.
The WPIAL has produced multiple PIAA team champions five times, doing so in 1996, 1997, 1999, 2002, and 2023. A total of eight different WPIAL schools have won PIAA titles, with Oakland Catholic’s nine being the most in league history. The other schools who have won a PIAA championship are: North Allegheny (8), Bethel Park (4), Gateway (3), Moon (2), Mt. Lebanon (1), Mt. Pleasant (1), and Norwin (1).
A full list of team champions by year and classification can be found below. The 2A classification did not have a champion crowned in 2020 due to the COVID-19 pandemic.
To view the list of PIAA individual champions from the WPIAL, please click here: LINK
| Year | School | Class | Results |
| 2023 | North Allegheny | 3A | 194; def. runner-up Hatboro-Horsham by 18 points |
| Mt. Pleasant | 2A | 218.5; def. runner-up Wyoming Seminary by 100.5 points | |
| 2021 | North Allegheny | 3A | 167; def. runner-up Wilson by 15 points |
| 2010 | Oakland Catholic | 2A | 187; def. runner-up Wyomissing by 30 points |
| 2009 | Oakland Catholic | 2A | 181; def. runner-up Shady Side Academy by 30 points |
| 2008 | Oakland Catholic | 2A | 169.5; def. runner-up Radnor by 31.5 points |
| 2007 | Oakland Catholic | 2A | 165; def. runner-up Panther Valley by 7 points |
| 2004 | Oakland Catholic | 2A | 159; def. runner-up Bradford by 50 points |
| 2003 | Oakland Catholic | 2A | 149; def. runner-up Bishop Hoban by 28 points |
| 2002 | Mt. Lebanon | 3A | 170; def. runner-up Parkland by 55 points |
| Oakland Catholic | 2A | 173; def. runner-up Bishop Hoban by 62 points | |
| 2001 | Oakland Catholic | 2A | 150; def. runner-up Gwynedd Mercy Academy by 30 points |
| 1999 | Bethel Park | 3A | 168; def. runner-up Mt. Lebanon by 50 points |
| Oakland Catholic | 2A | 146; def. runner-up Gwynedd Mercy Academy by 35 points | |
| 1998 | Bethel Park | 3A | 112; def. runner-up Emmaus by 1 point |
| 1997 | North Allegheny | 3A | 189; def. runner-up Fox Chapel by 74 points |
| Moon | 2A | 168; def. runner-up Bloomsbury by 20 points | |
| 1996 | North Allegheny | 3A | 149; def. runner-up Emmaus by 43.5 points |
| Moon | 2A | 141; def. runner-up Bloomsburg by 22 points | |
| 1995 | North Allegheny | 3A | 161; def. runner-up Wilson by 39 points |
| 1992 | North Allegheny | 144; def. runner-up Parkland by 15.5 points | |
| 1991 | North Allegheny | 131; def. runner-up North Penn by 34 points | |
| 1988 | Gateway | 108; def. runner-up Dover by 14 points | |
| 1987 | Bethel Park | 103; def. runner-up Dover by 1.5 points | |
| 1986 | Gateway | 109; def. runner-up Bethel Park by 29 points | |
| 1985 | Gateway | 91; def. runner-up North Allegheny by 6 points | |
| 1984 | North Allegheny | 109; def. runner-up Emmaus by 17 points | |
| 1982 | Norwin | 87; def. runner-up Bethel Park by 15 points | |
| 1981 | Bethel Park |
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