Carondelet High School 1133 Winton Dr, Concord, CA94518 Carondelet High School is a desirable all-girls Catholic school located off Treat Boulevard at Winton Drive. It…More stresses academic achievement while providing a strong faith-based curriculum that can be integrated through all parts of the girls' lives. It stresses social responsibility and the students are all required to give back to the community. It also has a very strong athletic program that seeks to balance body, mind and spirit. This school is the companion school to the all-boys De La Salle High School. Admission is fairly competitive. The school keeps an open wait list.