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.

Louisiana School for M,S,A

Loyola College Prep

LSU Laboratory School

Lutcher High School

Mandeville High School

Marcus High School

McDonough #35 Senior High School

McKinley Senior High School

Morgan City High School

Mount Carmel Academy

New Iberia Senior High School

New Orleans Center for Creative Arts

New Orleans Military and Maritime Academy

New Orleans Science and Math

North Iberville High School

Northshore High School

Notre Dame High School

Parkview Baptist High School

Patrick F Taylor Academy Patterson High School

Port Allen High School

Prairieville Riverdale High School

Rummel High School

Saint Scholastica Academy

Shadow Creek High School

Springhill High School

St James High School

St Scholastica

St Thomas High School

St. Amant High School

St. Augustine High School

St. Edmund High School

St. James High School

St. John High School

St. Joseph's Academy

St. Marys Dominican High School

St. Michael The Archangel High School

St. Paul's School

St. Thomas More High School

Strake Jesuit College Preporatory

Summer Creek High School

Teurlings Catholic High School

The Dunham School

The Village School

The Willow School

University Laboratory School

Ursuline Academy

Warren Easton Charter High School

West Feliciana High School

West St John High

Westgate High School

Wharton

White Castle High School

William B. Travis High School

Woodlawn High School

Academy of the Sacred Heart Grand Coteau

Academy of the Sacred Heart New Orleans

Acadiana High School

Airline High School

ARCA

Archbishop Chapelle High School

Ascension Episcopal School

Basile High School

Benjamin Franklin High School

Benton High School

Bishop Noland Episcopal Day School

Bogalusa High School

Breaux Bridge High School

Broadmoor Senior High School

Brother Martin High School

Brusly High School

C.E. Byrd High School

Cabrini High School

Captain Shreve High School

Catholic High School, Baton Rouge

Catholic High School, New Iberia

Christ Episcopal School

Clearbrook High School

Comeaux High School

Crowley High School

Cypress Springs High School

David Thibodaux STEM David Thibodeaux STEM Magnet Academy

DeLaSalle High School

Destrehan High School

Donaldsonville High School

Dutchtown High School

Early College Academy

East Ascension High School

East Saint John High School

Emerson High School, McKinney TX

Episcopal High School

Episcopal School of Acadiana

Eunice High School

Evangel High School

Faith Lutheran High School - Las Vegas, NV

Hahnville High School

Hammond High Magnet School

Hanson Memorial High School

Hendrickson High School

Holy Cross High School

Iberville MSA-East

Iberville MSA-West

Incarnate Word Academy

International Leadership of TX - Katy

Westpark HS

Jehovah Jireh

John Ehret High School

L.W.Higgins

Lafayette High School

Lake Arthur High School

Liberty Magnet High School

Lone Star High