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9-12
Public
Rancho Cucamonga, CA

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6001 Milliken Avenue
Rancho Cucamonga, CA 91737

School website
(909) 477-6900
(909) 460-5872
Nearby homes for sale
Map of Los Osos High School address.

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June 23, 2014
The counselor has been very helpful in choosing classes my child is interested in. The technology program is current, with all new computers and software. The principal really administrates this school effectively. It is safe and there are zero "gangs" which can be find in other neighboring areas.

- submitted by a parent
June 07, 2014
We took a tour of the school and love the people and the location here in Rancho Cucamonga. We just moved to this area and are looking forward to great things for our children.

- submitted by a community member
November 06, 2013
Los Osos is an amazing school! I wasn't as motivated freshman year to do so good, But my teachers did everything they could to help me. They are very flexible and are willing to do whatever it takes to make sure you pass. Also the best High School in San Bernadino County!

- submitted by a community member
August 20, 2013
Los Osos High School. Let me just say first off, it is the best high school in Southern California. Everything, and i mean everything is perfect about LOHS. It surpasses Rancho Cucamonga High School as well as the rest! With the outstanding principle, Mrs. Petrocheli , This is still the top school.Also WE ARE NOW A CALIFORNIA DISTINGUISHED SCHOOL! We made it to the top 10! Our API is through the roof and all we can do, is till go further up! Go LOHS Grizzles!

- submitted by a student
August 16, 2013
Love this school transferred to public school for the first time as a freshman and I loved it people are so much nicer here, the academics are amazing. It's a incredible school that offers so much. I am so happy I am at this school. No complaints at all (: people are welcoming classes are great and teachers are awesome and it's so easy to make friends. I'm so glad I chose this school.

- submitted by a community member
April 29, 2013
Great ACADEMIC program and reputation. Teachers I have interacted with show genuine concern for the success of all students through professionalism and upright character. Lots of school spirit and the office staff has always been friendly and helpful.

- submitted by a parent
October 25, 2012
Excellent opportunities for classes, great teachers, and a wonderful staff. Best high school in the Inland Empire.

- submitted by a parent
February 29, 2012
I'm currently a junior here, and I love the school, it's very nice and runs smooth. I love all the academic classes provided, and the teachers are great!

- submitted by a student
November 09, 2011
I really like this school because my daughter is highly motivated to excel and she hasn't been motivated for a few years. She is excited to go to school and do well. They accept all students who are gifted choose whether or not they want to take honors classes and will add them if necessary to help challenge them. I feel this is a great success! (Their cheeleaders can use a lot more work)

- submitted by a parent
July 26, 2011
We have a very committed principal at Los Osos High School. The teachers are very responsive and willing to work with you for the good of your children. This is a great school.

- submitted by a parent
April 18, 2011
Great School as long as you keep your child involved and focused on taking AP and Honors courses.

- submitted by a parent
September 14, 2010
Amazing school, amazing teachers, amazing athletics. Los Osos is ranked as one of the finest schools in United States By World News. It API test results prove that there is not finer school in the area. We feel very honored that our children are able to attend this school.

- submitted by a parent
April 10, 2010
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- submitted by a student
February 18, 2010
Great school for acedemic acheivement. Athletic programs, band, drama, etc are all strong. The Alta Loma school district is the always rated strongest in the area. Because of the large amount of students, student talent is sometimes overlooked in order to support participation by many. Be aware that after school activities demand a large amount of your student's time and energy. Insure that they maintain an acedemic priority. Top 10 precent acedemic performance and a good SAT will result in scholarship offers Los Osos is well supported by parents and local community. it is a fairly new school that has wasted little time in placing itself at the top of the list in many areas.

- submitted by a parent
February 07, 2010
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- submitted by a student
January 16, 2010
Los Osos has done very well for my son who will be off to USC this upcoming year. The area is also very nice and prestigious, making the schools student body very educated and relaxed.

- submitted by a parent
no rating November 22, 2009
Great school but that's mainly because of the area. Super drama/theatre department and their productions are outstanding. Club kids dominant many of the sports because families can afford it.

- submitted by a parent
November 11, 2009
Los Osos is the number one school in the San Bernardino county, the speaks for itself. This school is like no other in the area. Los Osos also has a great variety of AP courses, which outnumber by far those of any other school.

- submitted by a student
November 11, 2009
Great School ! Large portion going off to top-notch schools. Daughter graduated last year, now at Princeton. However students do come off as snobish and are very materialistic. Los Osos is the Beverly Hills high of the county.

- submitted by a parent
October 23, 2009
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- submitted by a parent
August 28, 2009
Superb School!! Los Osos is clearly one of the best in the nation. I m a proud parent boasting about the fact that Los Osos received a Silver Metal and was ranked one of America s best schools by U.S. News. We are truly the best choice for High School in the area. I searched 3 local High Schools in the area and none of them received the type of recognition that Los Osos currently has. The students at Los osos score are some of the highest in the nation. This is a clear example of the teachers abilities, the Administrations assistance and the parent s participation. Everyone works as a team here and us parents are proud to have our children attend such a fine school to prepare our children for the best possible future they could possibly have. Don t just take my word for it research it yourself.

- submitted by a parent
August 06, 2009
Disappointment! Any teen in need of special education stay away. Not parent or student friendly. Administration does not address needs and ignores grievances of any kind. Few good teachers but clearly the minority.

- submitted by a parent
July 08, 2009
Los Osos is just a great place to learn. The honors and ap programs are thriving with top notch teachers. Especially in the english department. Also the campus is much nicer than most high schools I have seen and it always makes me proud to say that I go to Los Osos.

- submitted by a student
July 08, 2009
Los Osos for 2nd year has been ranked as one of the Finest High School in the UNITED STATES, not just in this area. That speaks for itself. None of the schools in this area really compare to the academic excellence that can be found at Los Osos. Top quality teachers and administration. Los Osos excels in all areas academic's, Athletics, Arts.

- submitted by a parent
June 06, 2009
i am currently a junior about to finish this year in 3 day this is the best high school i would recommend to your children. the teachers take there time to help and encourage the students

- submitted by a student
May 18, 2009
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- submitted by a student
February 11, 2009
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- submitted by a parent
January 29, 2009
awemazing school. every constructed in the day; even with homework. enough said.

- submitted by a parent
no rating January 05, 2009
I might only be a freshmen but I moved from NYC in the Bronx in the summer and wanted to do school here and now live with my aunt and uncle and from the bad area I came from this is a big step up I love it! I made so manny friends and its so different from my other school the teacher are really nice and care about my education I love it and hope to have a great future from this school this has to be the best time of my life it is hard but if u put the effort the teachers help you so much its not even funny

- submitted by a student
December 23, 2008
I am a freshmen for this school i love it. It might be a big campus but i like how it is big. this school is like a collage-like campus. it has tons of clubs, sports, and activities. plus cool electives.

- submitted by a student
December 19, 2008
I am currently a Senior having attended all four years at Los Osos. I love it! It is by far the best high school around. I never feel unsafe. (Ive maybe seen 3 fights the whole time I've been there) The counselors and teachers actually care about me and my future after high school. (College is a frequent discussion) We currently hold the highest API score for San Bernardino County and we are darn proud of it. Some parents accuse us of being 'snobby' and 'cliquish.' Yes, we are the 'new school' but we are some of the nicest students who happened to get lucky with a great school. There is a small percentage of students that are extremely wealthy. That does not, however, characterize the rest of the student population as 'materialistic.' Los Osos provides the best possible opportunities for your child to succeed. I highly recommend LOHS.

- submitted by a student
no rating December 05, 2008
School is great for academics, best in district. However for the students, socially, it is very 'cliquish' as a previous review had stated. The mere area that the school had boundaries for tend to be wealthier families, therefore wealthier, more superficial and materialistic kids. But also better academics. So, the school = good academics, but gives off a small little town feel; definitely does not prepare you for large college campuses and campus life. former student of 08

- submitted by a student
October 31, 2008
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- submitted by a parent
October 28, 2008
Los Osos continues a very strong tradition of Academic and Athletic excellence unmatch in the area. Los Osos was recognized recently as one of the finest High School in the United States. Children are really pushed academically but they also provide all the tools kids need to succeed. My children were very fortunate to attend Los Osos.

- submitted by a parent
no rating September 04, 2008
After coming from the San Bernardino School District I can tell you that Los Osos is like being in a private school with superior educators and enforcers of rules. Parents really do care about their children's education here as well as the staff. I have never experienced such connections with the counselors and teachers to insure the success of my children in college. My daughter's counselor met with me 3 times her Senior year to make sure we were all on the same page for her goals for college. I couldn't believe that they cared like I did. My last district, the counselor s are dealing with so many disciplinary problems that the good students get lost in the shuffle and you really have to stay on top of your children s education goals. LosOsos has been a huge blessing for my family! I call this a public school of success!

- submitted by a parent
no rating July 11, 2008
Highest scores in the Chaffey School District. Wonderful, caring staff and excellent academic achievement programs to assist your teen the whole step of the way.

- submitted by a parent
no rating June 11, 2008
Los Osos is an amazing school. The teachers are always wulling to help the students and the counslers are great they make sure the students have all their requirements for college. My daughter graduated in 07 and is doing great in college my son will graduate in 2010 and I am sure he will also do great thanks to all that he has learned at Los Osos

- submitted by a parent
June 09, 2008
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- submitted by a parent
February 18, 2008
I have two students in Los Osos High School and am extremely pleased with this school. The teachers are very approachable and are always there for the students. They take the extra time for any one student that needs it. The school grounds are amazingly clean and both our children love their school, their teachers, their sports and really have pride when they tell people where they go to school. We are very blessed that our children are students in this school and very excited to know that our younger two children will be students there soon as well. Academically, our children are getting the best education that is certainly getting them ready for their college years.

- submitted by a parent
February 11, 2008
I absolutely love my school. I'm a Junior and have loved the past three years I have spent there. The teachers are great and there are so many extra curricular activities to choose from. There is something there for everyone.

- submitted by a student
February 08, 2008
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- submitted by a parent
January 29, 2008
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- submitted by a student
January 09, 2008
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- submitted by a student
December 14, 2007
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- submitted by a student
November 24, 2007
This school is just great and the test scores are well above those other great cities.

- submitted by a parent
October 26, 2007
I've been going to Los Osos for four years, and am graduating in June. I am so blessed to have been able to attend such an amazing school. I believe that it has helped me to acheive much throughout my high school career. I am so grateful for the wonderful teachers and staff at Los Osos that genuinelly care about the students, without them, our school would not be as amazing as it is!

- submitted by a student
October 22, 2007
I feel so priveledged to have my children attending Los Osos! I can honestly say that a majority of the teachers here really do care about the success of their students. Although the academics can be demanding at times, there are always resources available to get the assistance needed. Mr. Mitchell the Vice Principal really supports all of the activities and clubs and is very approachable for the students to come to. No matter what the students interest, there is a spot for them at this school or they welcome the opportunity to start something new. They certainly seem to create an environment of tolerance and the school has a small town feel for a very large school. When they throw a tailgate party everyone shows up! My only complaint is the parking is inadequate, but show me a school in California that doesn't have this problem.

- submitted by a parent
October 19, 2007
I am thrilled with the school. My son is a Senior this year and my daughter graduated in 06...This school prepares them for college.

- submitted by a parent
October 18, 2007
Entering year two at Los Osos and I can truthfully say I am not impressed. The teacher's could care less if the kids pass or fail. They give so much homework until your weekend's are spent at home so that your kid can complete the unbelievably heavy assignments. This school is very cliquish.

- submitted by a parent
August 27, 2007
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- submitted by a parent
August 21, 2007
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- submitted by a parent
August 14, 2007
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- submitted by a parent
July 18, 2007
The only word I can describe Los Osos with is-wonderful! This coming August I am going to be a Senior at Los Osos High. The past three years have passed by so fast and with complete satisfaction. There are many different clubs and sports to join and tons of different classes to choose from! This year, our school was evaluated by WASC, and they gave us a 6 year accreditation! We have received many 'Best in the West' awards which makes everyone who steps foot in Los Osos think of the school with very high standards. The Principal couldn't be better, and the counselors make sure the students are set for their future by the time they are ready to graduate. I would highly recommend this school even to those who live on the other side of the globe! Amazing school which welcomes new students with open arms.

- submitted by a student
July 17, 2007
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- submitted by a administrator
July 11, 2007
i am about to be a senior at los osos and let me tell you, i love the school. My past three years have been amazing, from academics to athletics my time has been amazing. Last year i had the privledge of having two teachers who had pHDs, one in english the other in chemistry, and i passed both the AP tests i took. My counselor, Mrs. Murphy, has done an amazing job at accomodating my every need in order to achieve goals for my future. Mr. Hollister is doing an amazing job and i hear he is going to be Dr. Hollister soon! This is truely an amazing school with tons to offer!!

- submitted by a student
June 26, 2007
I go here and the teachers,school,area is amazing.Im glad I get to go to a school like this

- submitted by a student
June 20, 2007
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- submitted by a student
June 12, 2007
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- submitted by a parent
June 02, 2007
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- submitted by a parent
April 30, 2007
As a student at LOHS I love it. In academics, I have a lot of options for regular, honors, AP and elective classes. In athletics, I also have a lot of options. LOHS has the best football program, back to back league champs and CIF playoffs. It also has great track, swim, waterpolo, tennis, softball, baseball, volleyball, basketball, and golf programs. There are a wide array of clubs, which can meet any interest. We have the best API scores in the district and county. LOHS is like a large family.

- submitted by a student
November 11, 2006
My son's class was the first to graduate after attending all four years. This is an outstanding High School. The teachers came from so many varied backgrounds. One was an Attorney, Another a Pharmacist. Teaching both academically and applied knowledge. Music Programs, both instrumental and voice, Football, Track, Color Guard and Drama are among the best in the County. If ever a problem, Security and Police nipped it in the bud. Wonderfully Modern physical campus. Travel clubs is great, too!

- submitted by a parent
May 28, 2006
I'm very pleased with this school.

- submitted by a parent
April 06, 2006
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- submitted by a parent
March 03, 2006
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- submitted by a parent
January 16, 2006
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- submitted by a parent
November 26, 2005
Los Osos High School has been an excellent school. My son is able to take many honors and AP courses and the quality of instructors is great! Highly recommended!

- submitted by a parent
no rating September 11, 2005
LOHS is a great overall school and a great learning environment. In my experience, the teachers are great and really care. There is heavy student involvement in the athletics which is great. One thing I noticed is the Mr. Kolmel, the Principal, does not really spend time with the students trying to get to know them or interact.

- submitted by a student
September 09, 2005
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- submitted by a former student
July 05, 2005
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- submitted by a parent
June 30, 2005
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- submitted by a parent
June 22, 2005
I would not recommend this school as it only goes to the tenth grade and with Morro High nearby that would be my choice.

- submitted by a former student
June 07, 2005
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- submitted by a parent
May 18, 2005
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- submitted by a parent
March 10, 2005
Pretty good school compared to others in area. Lots of gangs or clicks.

- submitted by a parent
February 13, 2005
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- submitted by a parent
December 19, 2004
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- submitted by a teacher
August 22, 2004
My son attended his freshman year here and I tell you that I was not impressed. The school grounds were like a prison (I know that this is a new school) and I was disappointed with how 2 teachers handled certain situations. The class seemed to be too tough on the kids also....my review is a 5 on a 10 scale.

- submitted by a parent
January 25, 2004
Los Osos High School is on its way to becoming the best school in the Chaffey Joint Union School District. Already excelling above the rest in Academics, the Athletes are beginning to make a name for themselves in league. In the first year of being open, the average PSAT score for the sophomores and freshmen combined was excellent, reaching high above the Junior scores of the neighboring high schools, and the English passing percentage on the High School exit exam was 94%. The English department is outstanding, with a wonderful department chair leader who has her docterate. The campus is new and beautiful and strong efforts are being made to keep it in top condition. These students have wonderful opportunities to start traditions and clubs on campus. The school also offers AP courses to sophomores, the only school in the district to do and it seems to be paying off. Being a new school, I am very satisfied.

- submitted by a student
August 26, 2003
Although this high school is still relatively new, it has yet to rise to the level of a high caliber learning institution. AP classes are limited, as are the resources available to 4-yr college bound students. Counselors have very little knowledge or resources to promote the childs interest in higher learning. My child tried for the past 2 years to start a chapter of the Junior Statesmen of America with no sucess because none of the teachers would volunteer to assist with administration of the program. Limited interest has been shown by administration or staff to participate in academic competitions either locally or nationally. Parents wanting their children to have a shot at a top notch university would do best to consider Rancho or Etiwanda where there is a proven track record of success.

- submitted by a parent
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Los Osos High School
6001 Milliken Avenue, Rancho Cucamonga, CA  91737
(909) 477-6900
Last modified Los Osos High School is a Public school that serves grades 9-12. It has received a GreatSchools rating of 9 out of 10 based on academic quality.
Los Osos High School Rating: 4 out of 5 based on 79 reviews. Top