Each year, delegates represent between 65-80 high schools from throughout the state. A partial listing of schools represented at LYS over the past several years is included below. The listing is too large to include all schools.
o Academy of the Sacred Heart
o Airline High School
o Benton High School
o Bogalusa High School
o Breaux Bridge High school
o Captain Shreve High School
o Catholic High School of Baton Rouge
o Catholic High School of New Iberia
o Comeaux High School
o Crowley High School
o DeLaSalle High School
o Dutchtown High School
o East Ascension High School
o Episcopal School of Acadiana
o Evangel High School
o Lafayette High School
o Louisiana School for M,S,A
o Mandeville High
o McDonough #35 Senior High School
o Mount Carmel Academy
o Mount Carmel Academy
o Notre Dame High School
o Parkview Baptist High School
o Patterson High School
o Pope John Paul High School
o Riverdale High School
o Saint Scholastica Academy
o Springhill High School
o St. Joseph's Academy
o St. Mary's Dominican
o St. Paul's School
o St. Thomas More High School
o Teurlings Catholic High School
o Tioga High School
o University High School
o Warren Easton
o Woodlawn High School