Brownwood High School. They hold 7 state titles.
Midwest Central High School Manito, Illinois
Southwood (LA) High School has won the most state titles in girls basketball with 10
I know that Robbinsville High School has 12 1A titles running all the way back to 1969!
Holy Cross High School of New Orleans has 54 state titles the most by any program in any highschool in history
Washinghton high school. In Sioux falls, SD
Muncie Central Muncie Central
Although many claim Cleveland Saint Ignatius has won the most.
De La Salle High School (Concord, California). This high school didn't lose a game from 1992 to 2005.
earl Wooster high school.