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.
ATopHap 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
- 11133 Martingale WayRancho Cucamonga, CA 917374 bd · 4.5 ba · 3,822 ft² · built 1999$2M
- 5590 Stoneview RdRancho Cucamonga, CA 917393 bd · 2.8 ba · 3,595 ft² · built 2006$1.7M
- 5591 Mesada StRancho Cucamonga, CA 917375 bd · 4 ba · 4,514 ft² · built 2003$1.6M
- 5019 Carriage RdRancho Cucamonga, CA 917374 bd · 3 ba · 3,111 ft² · built 2002$1.5M
- 6052 Los Altos CtRancho Cucamonga, CA 917396 bd · 5 ba · 4,121 ft² · built 2000$1.4M
- 5580 Stoneview RdRancho Cucamonga, CA 917393 bd · 2.8 ba · 3,395 ft² · built 2006$1.3M
- 12396 Macon DrRancho Cucamonga, CA 917394 bd · 3.5 ba · 3,744 ft² · built 2009$1.3M
- 5585 Crooked Creek RdRancho Cucamonga, CA 917374 bd · 3 ba · 3,046 ft² · built 1979$1.2M
- 6385 Deer Valley CtRancho Cucamonga, CA 917394 bd · 3 ba · 3,959 ft² · built 2014$1.2M
- 6210 Softwind PlRancho Cucamonga, CA 917374 bd · 3 ba · 3,142 ft² · built 1989$1.2M
- 6349 Daylily CtRancho Cucamonga, CA 917376 bd · 3 ba · 3,607 ft² · built 2004$1.1M
- 5925 Moonstone AveRancho Cucamonga, CA 917014 bd · 2 ba · 2,373 ft² · built 1979$1.1M
- 8882 Beechwood DrRancho Cucamonga, CA 917015 bd · 3 ba · 2,574 ft² · built 1973$1.1M
- 12440 Macon DrRancho Cucamonga, CA 917394 bd · 2.5 ba · 2,879 ft² · built 2008$1.1M
- 8745 Via El DoradoRancho Cucamonga, CA 917014 bd · 2 ba · 2,614 ft² · built 1966$1M
- 12395 Goodwood DrRancho Cucamonga, CA 917394 bd · 2.5 ba · 3,112 ft² · built 2004$1M
- 5207 Mayberry AveRancho Cucamonga, CA 917374 bd · 2.5 ba · 2,248 ft² · built 1979$982K
- 10311 Finch AveRancho Cucamonga, CA 917374 bd · 2 ba · 2,009 ft² · built 1999$957K
- 6720 Elmhurst AveRancho Cucamonga, CA 917014 bd · 2 ba · 1,863 ft² · built 1978$928K
- 12408 High Horse DrRancho Cucamonga, CA 917394 bd · 3 ba · 2,650 ft² · built 2000$899K
- 5938 Dartmouth AveRancho Cucamonga, CA 917374 bd · 2 ba · 1,816 ft² · built 1979$876K
- 10372 Cartilla CtRancho Cucamonga, CA 917374 bd · 2.5 ba · 2,119 ft² · built 1979$855K
- 10345 Ring AveRancho Cucamonga, CA 917374 bd · 2 ba · 2,009 ft² · built 1998$838K
- 10290 Banyan StRancho Cucamonga, CA 917374 bd · 3.5 ba · 1,751 ft² · built 1979$821K
- 11598 Copper Pass CtRancho Cucamonga, CA 917374 bd · 3 ba · 2,072 ft² · built 1986$805K
- 6339 Calle HermosoRancho Cucamonga, CA 917374 bd · 3 ba · 2,238 ft² · built 1992$789K
- 10338 Southridge DrRancho Cucamonga, CA 917373 bd · 2.5 ba · 1,674 ft² · built 1988$775K
- 6810 Trinity PlRancho Cucamonga, CA 917013 bd · 2 ba · 1,607 ft² · built 1987$760K
- 6607 Kern PlRancho Cucamonga, CA 917013 bd · 2.5 ba · 1,700 ft² · built 1988$747K
- 11165 Pacific StRancho Cucamonga, CA 917014 bd · 2.5 ba · 1,650 ft² · built 1989$734K
- 6449 Panorama CtRancho Cucamonga, CA 917374 bd · 3 ba · 1,896 ft² · built 1988$720K
- 11544 Mount Rainier CtRancho Cucamonga, CA 917373 bd · 2.5 ba · 1,472 ft² · built 1986$706K
- 11073 Shaw StRancho Cucamonga, CA 917013 bd · 2.5 ba · 1,485 ft² · built 1988$691K
- 10325 Liberty StRancho Cucamonga, CA 917374 bd · 2 ba · 1,502 ft² · built 1962$674K
- 10318 Holly StRancho Cucamonga, CA 917014 bd · 2 ba · 1,874 ft² · built 1977$655K
- 6642 Montresor PlRancho Cucamonga, CA 917373 bd · 2 ba · 1,240 ft² · built 1988$630K
- 10638 Grandview DrRancho Cucamonga, CA 917012 bd · 2 ba · 1,263 ft² · built 1985$596K
- 10655 Lemon AveRancho Cucamonga, CA 917372 bd · 1 ba · 816 ft² · built 1987$415K
- 10210 Base Line RdRancho Cucamonga, CA 917013 bd · 2 ba · 1,344 ft² · built 1984
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 studentsA-
- 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 studentsC
- Etiwanda High SchoolGrades 9–12 · 3,446 studentsA
- Montclair High SchoolGrades 9–12 · 2,515 studentsB-
- Ontario High SchoolGrades 9–12 · 1,994 studentsC+
- Rancho Cucamonga High SchoolGrades 9–12 · 3,221 studentsA-
- Valley View High (Continuation)Grades 9–12 · 370 studentsD