Southwestern Academy is a top rated, private, boarding school located in San Marino, CA. At SA, you can reach your highest potential, participate in sports and activities, and make lifelong friendships. Our students study on two picturesque and complementary campuses in San Marino, California, and Rimrock, Arizona. Southwestern Academy offers you something unique and special. It’s more than a place to maximize your learning, explore new interests, develop new talents, and prepare for the college of your choice. It’s also a place where you’ll belong. Our close-knit community of students and teachers provides a warm, supportive environment and personal attention.