2023 Best Schools in Diamond Bar

• Claremont, CA•

• Private School•

• 9-12

• •
  Rating 4.46 out of 5  87 reviews

Alum: Recent alum here, fantastic school for academic development. The teachers here are top notch and the relationships they foster with students is extremely unique at the high school level. We were spoiled at Webb and I constantly am reminded of how much I was blessed to attend a school that is so enriching in several areas. By FAR the best school academically in the area, and nothing within a 40 mile radius offers anything better or even remotely close to the quality and personalization of a Webb education. Beautiful campus, quality location, top notch. The ONLY negative gripe I have with Webb is the college admissions staff and their deceiving system that is inherently unequal. They claim to use a system based on "fit," but instead cater to a practice reliant upon getting as many seniors into 10% of colleges as they can. Telling seniors to not apply to a certain school by claiming lack of "fit," when in reality, they want to cut down competition and cater to their quota.... Read 87 reviews

• grade A+

• Students 404

• Student-teacher ratio 7:1

• Anaheim, CA•

• Private School•

• 9-12

• •
  Rating 4.56 out of 5  103 reviews

Parent: Fairmont is an outstanding educational experience. The San Juan Capistrano campus has seen a surge in enrollment, welcoming countless new faces to the grounds with terrific teachers and administrators supporting their success. It's exciting to watch this school grow!... Read 103 reviews

• grade A+

• Students 456

• Student-teacher ratio 12:1

• Walnut Valley Unified School District, CA•

• 9-12

• •
  Rating 3.81 out of 5  628 reviews

Senior: Overall it was a good experience. The one thing I would change is the layout of the classrooms. There should not be classrooms in far parts of the school, away from all the other classes. If there needs to be different sections to decrease congestion, then there should at least be more classrooms in that area. Most of the teachers are excellent, however, they do move rather quickly, so if you decide to attend, make sure you can keep up with the pacing!... Read 628 reviews

• grade A+

• Students 2,205

• Student-teacher ratio 22:1

• Rowland Heights, CA•

• Private School•

• 3-12

• •
  Rating 4.95 out of 5  58 reviews

Sophomore: I'm a student taking the MBacc course at Elite Open School. MBacc course gives us a completely different opportunity of learning from the original high school course. MBacc class goes on online and follows the form of the class called the forum that is made by Minerva University. In the forum, we meet teachers and students living in different countries online. The advantage that I found in this course is that we are doing 'real' learning, not just studying for exams or university. By doing student-led classes and lots of presentations, we learn what we have to learn in the real world and relate every topic to each other. Whenever I take the class, I feel like I'm really learning something very useful and meaningful. Even though there are some parts where we have many work-loads for every class, a small number of students in class, and different time-line with teachers and other students, these factors also make us more productive and have real close relationships with the class!... Read 58 reviews

• grade A+

• Students 185

• Student-teacher ratio 8:1

• Walnut Valley Unified School District, CA•

• 9-12

• •
  Rating 3.84 out of 5  822 reviews

Junior: Great environment! There're a lot of things to do here, including out of class activities like clubs or athletics. If you're interested in classes like choir or the arts, this school has a lot to offer. The teachers are also generally kind and caring. Overall, a very academically rich and diverse school.... Read 822 reviews

• grade A+

• Students 2,544

• Student-teacher ratio 25:1

• Rowland Heights, CA•

• Private School•

• PK, K-12

• •
  Rating 4.6 out of 5  55 reviews

Parent: I have three children at Southlands. One in elementary, middle school, and high school. The quality of instruction and personalized attention my children receive is priceless. The teachers know how to mine the gold out of each student. There are over 20 AP courses my high school student can choose from and over 40 clubs to participate in. Wonderful teachers and staff who love the kids!... Read 55 reviews

• grade A+

• Students 492

• Student-teacher ratio 12:1

• Anaheim, CA•

• Private School•

• 9-12

• •
  Rating 4.38 out of 5  105 reviews

Parent: As a parent and staff member at Servite, I have been impressed with the quality of teachers, counselors, staff and coaches. I have 2 sons at Servite, and I can honestly say that Servite is the only place I'd want them to be. The faith formation program is great, and there are plenty of opportunities to find something that fits with your sons interests and personality- whether it is sports, leadership roles, clubs, or service projects. There really is something for everybody. The sense of community and brotherhood is very strong at Servite. Many Servite families are quick to volunteer and bond with each other over various events and activities, and I cherish the friendships I have made there. There are so many ways to get involved, which only enhances your family's Servite experience. Come and check out what Servite has to offer! You won't be disappointed! CREDO!... Read 105 reviews

• grade A+

• Students 802

• Student-teacher ratio 13:1

• Anaheim, CA•

• Private School•

• 1-12

• •
  Rating 4.12 out of 5  17 reviews

Junior: Acaciawood is an amazing school, with teachers who seek to provide the utmost care for each student. This coming school year will be my 6th year at Acaciawood, and I can testify that the curriculum, although difficult, is extremely beneficial. AWP's curriculum has enabled me to develop a strong work ethic and passion to learn and succeed in all of my studies. Class sizes are small, so each teacher is able to attend to the academic needs for the individual student. You will not regret sending your child to this school.... Read 17 reviews

• grade A+

• Students 119

• Student-teacher ratio 6:1

• Orange, CA•

• Private School•

• 9-12

• •
  Rating 4.2 out of 5  199 reviews

Parent: Orange Lutheran provides a wonderfully supportive environment for its students that promotes individual and spiritual growth. The staff and faculty loves our kids and is dedicated to their well being. The athletics and performing arts are incredible and we have loved having our kids involved in both. I would highly recommend OLu!... Read 199 reviews

• grade A

• Students 1,394

• Student-teacher ratio 20:1

• Fullerton, CA•

• Private School•

• 9-12

• •
  Rating 3.94 out of 5  194 reviews

Junior: It is a wonderful experience! Something enjoyable about the school is the friendliness and the love that flows in the community! Another thing is being able to express yourself through different activities from theaters, sports to different clubs! Our school makes sure that students have the best opportunities to choose from. Throughout the COVID19 pandemic, our school has made sure to keep us connected and updated on events and things to come! The school does not tolerate bullying or any acts of hate on others! It is a well-rounded school and makes sure that it's students learn how to show respect!... Read 194 reviews

• grade A

• Students 463

• Student-teacher ratio 15:1

• Los Angeles County Office of Education, CA•

• 9-12

• •
  Rating 3.89 out of 5  271 reviews

Senior: I love a lot of things about International Polytechnic High School...but not the mouthful of a name. We call it IPoly for short. The courses are designed to teach every student various useful skills, such as sewing, video editing, writing professional resumes and emails, and public speaking. IPoly is so tight-knit that you rarely ever hear even a whisper about bullying, violence, or drugs there, and all LGBTQIA+ personalities are very much accepted. The main drawback is that we lack in traditional school hype. The few clubs there aren't well-known (even to the students on campus), we need to go to a neighboring school to play in sports teams, and very few people get excited for ASB events. Also, we don't have an official cafeteria, so most students either get the free lunch provided at school or venture onto the neighboring campus of CalPoly - Pomona for lunch. This is normally a bit of an inconvenience. But, on the bright side, it gives one the chance to be on a college campus.... Read 271 reviews

• grade A

• Students 472

• Student-teacher ratio 22:1

• Walnut Valley Unified School District, CA•

• K-5

• grade A

• Students 499

• Student-teacher ratio 25:1

• Fullerton, CA•

• Private School•

• K-12

• •
  Rating 4.44 out of 5  16 reviews

Parent: My daughter is in 6th grade at Eastside. It is truly nothing less than perfection. I couldn't ask for a more nurturing, safe, educational, adventurous, prepatory and comprehensive educational experience for her. My biggest regret is not enrolling earlier. She is absolutely thrilled to go to school every morning and I am equally thrilled to drop her there, knowing she's getting the best education while having the time of her life. If you're looking for an amazing school for your child, this is it.... Read 16 reviews

• grade A

• Students 70

• Student-teacher ratio 4:1

• Walnut Valley Unified School District, CA•

• 6-8

• •
  Rating 4.5 out of 5  4 reviews

Alum: South Pointe was an extremely fun community that treated their students fairly. They have an excellent music education program, and very good social studies education along with a decent STEM program with Robotics and SciOly teams.... Read 4 reviews

• grade A

• Students 900

• Student-teacher ratio 24:1

• La Verne, CA•

• Private School•

• 9-12

• •
  Rating 4.15 out of 5  142 reviews

Alum: My 4 years at Damien was a learning experience. The brotherhood we all shared will last a life time. Our educators are very much involved with the students and they have been a very important part of my growth. My senior year highlight, beside class of 2020, was our Kairos retreat. I learned to know myself better and my brothers too. The school is constantly revolving; therefore, after experiencing virtual learning, I would like to see the school offer more online classes for students. Overall, an excellent school and proud to be a Spartan!... Read 142 reviews

• grade A

• Students 923

• Student-teacher ratio 20:1

• Walnut Valley Unified School District, CA•

• 6-8

• •
  Rating 4 out of 5  1 review

Junior: I would like the strict no phone rule to change because it prohibited another source of reading from me. The library had a wide range of books but some I couldn't find. One of the teachers made my experience stressful.... Read 1 review

• grade A

• Students 1,194

• Student-teacher ratio 25:1

• Walnut Valley Unified School District, CA•

• K-5

• •
  Rating 3.67 out of 5  3 reviews

• grade A

• Students 665

• Student-teacher ratio 26:1

• Ontario, CA•

• Private School•

• K-12

• •
  Rating 3.88 out of 5  157 reviews

Senior: I really loved going to Ontario Christian because the school focuses more on a student as a whole, rather than just academics. Ontario Christian encourages their students to pursue their different interests by having flexible coaches, teachers, and staff. The faculty supports multi-sport and activities students by letting students take tests earlier and providing homework early in case students are going to be absence due to sports or other activities. Ontario Christian was a great place for me, especially, because I have many different interests and at a smaller school, I could be involved in multiple activities at one time. I really enjoyed my time there because I felt truly encouraged to pursue all my interests from Yearbook to Tennis (a sport I’ve never played before)!... Read 157 reviews

• grade A

• Students 1,110

• Student-teacher ratio 12:1

• Rosemead, CA•

• Private School•

• 9-12

• •
  Rating 4.36 out of 5  114 reviews

Senior: Bosco Tech is an amazing school that I will always hold close to my heart. Though it is an all male Private Catholic High School, I have been able to cherish all the moments that make me the man I am today. This school has helped me become a better person, son, and older brother towards my younger sister. The education and teachers at Bosco Tech are phenomenal as I feel prepared to leave Bosco and have the ability to succeed in college. Though I love my school very much the one thing I would change about Bosco Tech would be to update the buildings and bathrooms. Most of the restrooms and the classrooms haven't had any updates since the school opened in 1955. The only significant update each classroom has received is an air conditioning and heater for when the weather gets too hot or too cold. Otherwise I see Bosco Tech as a perfect school for all male students in high school.... Read 114 reviews

• grade A

• Students 394

• Student-teacher ratio 12:1

• Fullerton, CA•

• Private School•

• PK, K-12

• •
  Rating 4.56 out of 5  9 reviews

Middle School Student: I attended Veritas Classical Academy from 2013 to 2016, after coming to the US with my family and father, who attended college here to get a second degree. Back then, I was inexperienced in most aspects, especially English and in developing relationships with other people. Veritas was still a very small school when I attended, and their method of letting both young and old students mingle, and interact with each other was such a shock and very different from what I experienced in Korea. And yet, the method seems to have worked perfectly; I was surprised to find out that bullying and violence was common in most middle-and-high-schools, since I'd never experienced anything of the sort at Veritas. I thought all American schools were that nice! Overall, attending Veritas was a real blessing in my life, because it allowed me to get a good education, which allowed me to open my eyes to the world, think a tier above "other kids", and follow God. I recommend it. I look forward to its future.... Read 9 reviews

• grade A

• Students 108

• Student-teacher ratio 7:1

• Walnut Valley Unified School District, CA•

• K-5

• grade A

• Students 645

• Student-teacher ratio 24:1

• Walnut Valley Unified School District, CA•

• K-5

• grade A

• Students 643

• Student-teacher ratio 24:1

• Pomona, CA•

• Private School•

• PK, K-12

• •
  Rating 4.56 out of 5  27 reviews

Sophomore: City of Knowledge is pretty great. The classes are considerably small allowing every student to get a proper amount of attention. They really encourage students to get college credit and take AP courses. It is actually very common for students to graduate with at least one year of college credit acquired. Also, the staff is very friendly and welcoming. This online learning experience was pretty interesting. I really did appreciate the fact that they made sure that everyone was doing well. If students did not have the necessary materials (ex: devices), they were lent whatever they needed. Although the experience was different and quite difficult, the school did everything possible to make the transition from in-class to online learning smooth.... Read 27 reviews

• grade A

• Students 161

• Student-teacher ratio 9:1

• La Habra, CA•

• Private School•

• 9-12

• •
  Rating 3.93 out of 5  104 reviews

Sophomore: Whittier Christian High School is a tremendous school both academically and spiritually. The teachers and faculty do a superb job in all aspects of the school whether that be teaching, facilitating, or helping. WHCS offers classes for different levels and also has a variety of clubs and groups to join. I personally have grown at Whittier Christian through their academic classes and have learned so much more. I will also begin my journey growing in school activities as is I’ll be joining ASB for my Sophmore year. For anyone interested in WCHS, I would certainly look into it and reach out to the administration as they will clearly guide you into joining. It is a fantastic school and will help you or your child grow academically and spiritually!... Read 104 reviews

• grade A

• Students 525

• Student-teacher ratio 13:1

• West Covina, CA•

• Private School•

• PK, K-12

• •
  Rating 4.33 out of 5  9 reviews

Niche User: Outstanding education for my grandson who is now in Kindergarten! The preschool teachers have given him a solid foundation and it continues on through kindergarten with their strong focus on reading. Even as young as kinder, they are introduced to a variety of subjects with specialized teachers in Music, Art, Spanish, and PE. The expectations are high and the teachers are great at getting them there! My grandson loves this school and so do we!... Read 9 reviews

• grade A

• Students 385

• Student-teacher ratio 8:1