Los Osos High School
Los Osos High School is a public high school in Rancho Cucamonga, CA, serving grades 9–12, rated A-, with 2,759 students and a 25.8:1 student-teacher ratio.
In 2024-2025, the share of students meeting the state standard was 79% in English Language Arts, 51% in Math and 38% in Science.
A-TopHap school rating
- Rating
- A-
- Grades
- 9–12
- Enrollment
- 2,759
- Students per teacher
- 25.8:1
- Level
- High
- Type
- Public · Regular
2024-2025 testing year
State test results
Share of students meeting or exceeding the state standard.
English Language Arts79%
Math51%
Science38%
Academics and programs
- AP courses offered
- 22
- Open enrollment
- No
Student body
Hispanic41%
White24%
Asian23%
Black6%
Two or more races5%
Native American0%
Pacific Islander0%
- Male / female
- 50% / 50%
- Free or reduced lunch
- 44%
- Enrollment change vs prior year
- -7.1%
- Prior-year enrollment
- 2,970
Homes assigned to this school
12,621 homes in TopHap's records are assigned to Los Osos High School. These 40 are sampled evenly down the value ranking, so they span the whole zone rather than just its most expensive streets.
Export all 12,621 assigned homes as a CSV · TopHap Pro
- 10039 Santina StRancho Cucamonga, CA 917375 bd · 5 ba · 7,917 ft² · built 2014$5.3M
- 5680 Grata Vista CtRancho Cucamonga, CA 917375 bd · 5 ba · 5,626 ft² · built 2007$2M
- 5326 Rocky Mountain CtRancho Cucamonga, CA 917375 bd · 4 ba · 4,029 ft² · built 2014$1.7M
- 9885 Hidden Farm RdRancho Cucamonga, CA 917374 bd · 4 ba · 3,531 ft² · built 2000$1.6M
- 10521 Apple LnRancho Cucamonga, CA 917374 bd · 3.5 ba · 3,491 ft² · built 1979$1.5M
- 9140 Reales StRancho Cucamonga, CA 917373 bd · 2.8 ba · 3,283 ft² · built 1990$1.4M
- 12565 Melon DrRancho Cucamonga, CA 917395 bd · 4.5 ba · 4,140 ft² · built 2008$1.4M
- 12878 Bermuda CtRancho Cucamonga, CA 917394 bd · 3.8 ba · 3,504 ft² · built 1999$1.3M
- 5138 Hermosa AveRancho Cucamonga, CA 917373 bd · 2.8 ba · 2,634 ft² · built 2000$1.3M
- 5959 Falling Tree LnRancho Cucamonga, CA 917374 bd · 4 ba · 2,975 ft² · built 1977$1.2M
- 10040 Jonquil DrRancho Cucamonga, CA 917014 bd · 3 ba · 3,061 ft² · built 1974$1.2M
- Gooseneck RdAlta Loma, CA 91737$1.2M
- 8768 Strang LnRancho Cucamonga, CA 917014 bd · 3 ba · 2,716 ft² · built 1978$1.1M
- 5539 Valinda AveRancho Cucamonga, CA 917374 bd · 2 ba · 2,413 ft² · built 1979$1.1M
- 8937 Camellia CtRancho Cucamonga, CA 917374 bd · 2 ba · 2,144 ft² · built 1974$1.1M
- 5950 Sacramento AveRancho Cucamonga, CA 917014 bd · 2 ba · 2,373 ft² · built 1979$1.1M
- 8727 Rancho StRancho Cucamonga, CA 917014 bd · 2 ba · 1,955 ft² · built 1963$1M
- 9350 Hillside CvRancho Cucamonga, CA 917374 bd · 2 ba · 2,002 ft² · built 1969$1M
- 6345 Terracina AveRancho Cucamonga, CA 917374 bd · 3 ba · 2,548 ft² · built 1993$975K
- 9195 Almond StRancho Cucamonga, CA 917373 bd · 2 ba · 1,990 ft² · built 1978$941K
- 6971 Stanislaus PlRancho Cucamonga, CA 917014 bd · 2.5 ba · 2,158 ft² · built 1988$910K
- 9988 Bristol StRancho Cucamonga, CA 917373 bd · 2 ba · 2,071 ft² · built 1998$884K
- 6370 Traminer CtRancho Cucamonga, CA 917374 bd · 3 ba · 2,200 ft² · built 1989$866K
- 7078 Campbell PlRancho Cucamonga, CA 917014 bd · 2.5 ba · 1,771 ft² · built 1988$849K
- 10919 Sinclair StRancho Cucamonga, CA 917013 bd · 2.5 ba · 1,641 ft² · built 1987$832K
- 6365 Mayberry AveRancho Cucamonga, CA 917374 bd · 2 ba · 1,692 ft² · built 1979$816K
- 6662 San Benito AveRancho Cucamonga, CA 917014 bd · 2.5 ba · 1,924 ft² · built 1988$799K
- 6153 Orvieto CtRancho Cucamonga, CA 917374 bd · 2.5 ba · 1,832 ft² · built 1988$786K
- 11195 Delaware StRancho Cucamonga, CA 917014 bd · 2.5 ba · 1,653 ft² · built 1988$771K
- 11376 Mount Johnson CtRancho Cucamonga, CA 917374 bd · 2.5 ba · 1,684 ft² · built 1986$759K
- 11182 Amarillo StRancho Cucamonga, CA 917014 bd · 2.5 ba · 1,653 ft² · built 1988$746K
- 6170 Kinlock AveRancho Cucamonga, CA 917374 bd · 2 ba · 1,722 ft² · built 1979$734K
- 11436 Mount Wallace CtRancho Cucamonga, CA 917373 bd · 2 ba · 1,434 ft² · built 1986$722K
- 11599 Pinnacle Peak CtRancho Cucamonga, CA 917373 bd · 2.5 ba · 1,472 ft² · built 1986$707K
- 6600 Montresor PlRancho Cucamonga, CA 917373 bd · 2.5 ba · 1,530 ft² · built 1988$693K
- 11866 Antler Peak CtRancho Cucamonga, CA 917373 bd · 2 ba · 1,302 ft² · built 1988$672K
- 7225 Parkside PlRancho Cucamonga, CA 917013 bd · 2 ba · 1,218 ft² · built 1985$647K
- 7287 Parkside PlRancho Cucamonga, CA 917013 bd · 2 ba · 1,272 ft² · built 1985$611K
- 10655 Lemon AveRancho Cucamonga, CA 917373 bd · 2 ba · 1,111 ft² · built 1987$426K
- 10210 Base Line RdRancho Cucamonga, CA 917013 bd · 2 ba · 1,248 ft² · built 1977
School details
- Address
- 6001 Milliken Ave, Rancho Cucamonga, CA 91737
- Phone
- (909) 477-6900
- Website
- cjuhsd.net
- Setting
- Suburb - Large
- Status
- Operational
- NCES ID
- 060816010605
School district
Chaffey Joint Union High School District
- District rating
- B+
- Schools
- 11
- Students
- 22,116
- Spending per student
- $16,414
- Teachers (FTE)
- 913
- Grades
- 09–12
Other schools in this district
- Alta Loma High SchoolGrades 9–12 · 2,386 studentsB+
- Chaffey Community DayGrades 9–12 · 20 students
- Chaffey District Online High SchoolGrades 9–12 · 93 studentsA
- Chaffey High SchoolGrades 9–12 · 3,127 studentsC+
- Colony High SchoolGrades 9–12 · 2,109 studentsB-
- Etiwanda High SchoolGrades 9–12 · 3,446 studentsA-
- Montclair High SchoolGrades 9–12 · 2,515 studentsB
- Ontario High SchoolGrades 9–12 · 1,994 studentsB-
- Rancho Cucamonga High SchoolGrades 9–12 · 3,221 studentsA-
- Valley View High (Continuation)Grades 9–12 · 370 studentsF