Private Schools in Clayton, California

Carondelet High School is a highly-regarded all-girls Catholic college preparatory school located just minutes from Clayton in Concord. The school offers a rigorous academic program with 22 Advanced Placement courses and a comprehensive STEM academy. Students benefit from small class sizes averaging 18 students, with 95% of faculty holding advanced degrees. The campus features state-of-the-art science labs, performing arts center, and extensive athletic facilities. Carondelet consistently achieves exceptional college acceptance rates with graduates attending top universities nationwide. The school emphasizes leadership development and community service alongside academic excellence.

De La Salle High School is a premier all-boys Catholic college preparatory school located adjacent to Carondelet High School in Concord, serving Clayton families. The school is nationally recognized for academic excellence and its renowned athletic programs. De La Salle offers 24 Advanced Placement courses and specialized academies in engineering and business leadership. The 25-acre campus features modern classrooms, extensive athletic facilities, and dedicated STEM labs. With a 100% college acceptance rate and average SAT scores well above national averages, graduates consistently gain admission to top-tier universities. The school emphasizes character development and leadership through its Lasallian educational tradition.

The Athenian School is a distinguished independent college preparatory school located in Danville, serving students from Clayton and surrounding communities. As an International Baccalaureate World School, Athenian offers the IB Diploma Programme alongside its innovative curriculum. The 75-acre campus at the base of Mount Diablo provides exceptional facilities including science and innovation centers, performing arts spaces, and extensive athletic facilities. Athenian is renowned for its hands-on learning approach, including mandatory wilderness experiences and global citizenship programs. The school maintains small class sizes with a 8:1 student-teacher ratio and emphasizes critical thinking, ethical leadership, and environmental stewardship.