PIAA District 10

District 10 of the Pennsylvania Interscholastic Athletic Association (PIAA) is an interscholastic athletic association in Northwest Pennsylvania. District 10 is one of the PIAA's 12 athletic conferences and comprises high schools in Erie, Pennsylvania and surrounding counties to the south and east. Member schools are classified by enrollment into four categories based on the number of students: A, AA, AAA, AAAA. District 10 is commonly referred to as "D-10" and is sometimes notated with the Roman Numeral "X".

The league is made up of 50 public schools and private schools located in Crawford, Erie, Mercer, Venango and Warren counties.

Exceptions include:

Alphabetical list of D-10 Member Schools with addresses and contact information:

District 10 hosts thirteen sports over three athletic seasons: fall, winter and spring. Several D-10 teams also compete in bowling, hockey, lacrosse and water polo, but are in leagues that are not a part of the PIAA.

Fall: Football, Soccer, Tennis (girls), Cross Country, Volleyball (girls)

Winter: Swimming & Diving, Wrestling, Basketball

Spring: Tennis (boys), Softball, Baseball, Volleyball (boys), Track & Field

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