Los Osos High School
6001 Milliken Ave, Rancho Cucamonga, CA 91737 | (909) 477-6900
- Grades: 9-12
- Student Enrollment: 3,262
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School Description
School Summary and Highlights
- Enrolls 3,262 high school students from grades 9-12
- Ranks 92nd out of 1,197 high schools in CA.
- 2010 Overall School AYP Met Status: Yes
Additional Contact Information
- Mailing Address: 6001 Milliken Ave., Rancho Cucamonga, CA 91737
School District Details
- Chaffey Joint Union High School District
- Per-Pupil Spending: $8,140
- Dropout Rate: 3.2%
- Students Per Teacher: 25.9
- Enrolled Students: 25,367
Faculty Details and Student Enrollment
Students and Faculty
- Total Students Enrolled: 3,262
- Total Full Time "Equivalent" Teachers: 117.0
- Average Student-To-Teacher Ratio: 27.9
Students Gender Breakdown
- Males: 1,646 (50.5%)
- Females: 1,616 (49.5%)
Free Lunch Student Eligibility Breakdown
- Eligible for Reduced Lunch: 125 (3.8%)
- Eligible for Free Lunch: 308 (9.4%)
- Eligible for Either Reduced or Free Lunch: 433 (13.3%)
Student Enrollment Distribution by Race / Ethnicity
| Number | Percent | |
|---|---|---|
| American Indian | 8 | 0.2% |
| Black | 358 | 11.0% |
| Asian | 395 | 12.1% |
| Hispanic | 989 | 30.3% |
| White | 1,424 | 43.7% |
Number of Students Per Grade
| Number | Percent | |
|---|---|---|
| 9th Grade | 853 | 26.1% |
| 10th Grade | 833 | 25.5% |
| 11th Grade | 855 | 26.2% |
| 12th Grade | 721 | 22.1% |
Graduates Information (2010)
Graduation Rate
School:
95.2%
District:
82.2%
State:
78.6%
Teacher Education Background (2009)
Percent With Ph.D.
School:
2.2%
District:
8.3%
Percent With Master's Degree
School:
12.2%
District:
8.3%
Percent With Bachelor's Degree
School:
5.8%
District:
8.3%
Teacher Credentials & Experience (2009)
Percent of Teachers With Emergency Credentials: 0.8%
Percent of Teachers With Credentials: 99.2%
Number of Certificated Staff: 139.0
Average Number of Years of Teacher Experience: 14.0
Average Age
School:
41.7
District:
48.3
Source: CA Department of Education, Source: NCES 2009-2010
School Ratings and Reviews
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Test Scores and Performance Information
Overall School Rating
How is this determined?
The overall school rating shows that Los Osos High School performed on average much better than most other schools across the state on CST state exams in the following subjects:
- CST Algebra I
- CST Algebra II
- CST Biology
- CST Chemistry
- CST Earth Science
- CST English-Language Arts
- CST Geometry
- CST Physics
- CST Science
- CST Summative High School Math
- CST U.S. History
- CST World History
AYP Results (2010)
Overall AYP Met: Yes
ELA AYP Met: Yes
Math AYP Met: Yes
ACT Exam Results (2009)
Percent of Students Taking ACT Exam: 19.6%
Average Combined Score: 22.9
Percent Scoring At or Above 21: 68.2%
SAT Exam Results (2009)
Percent of Students Taking SAT Exam: 50.6%
Average Combined Score: 1,538.2
Critical Reading Average: 503.6
Math Average: 529.8
Writing Average: 504.9
Percent Scoring At or Above 1500: 53.5%
CST - Test Proficiency by Grade and Subject
Grade 9 - % of students at or above proficiency
| School | District | State | |
|---|---|---|---|
| CST Algebra I Test | |||
| 2010 | 44.0% | 29.0% | 22.0% |
| 2009 | 37.0% | 25.0% | 21.0% |
| 2008 | 39.0% | 20.0% | 18.0% |
| CST Biology Test | |||
| 2010 | 97.0% | 77.0% | 55.0% |
| 2009 | 97.0% | 74.0% | 51.0% |
| 2008 | 92.0% | 77.0% | 52.0% |
| CST Earth Science Test | |||
| 2010 | 49.0% | 40.0% | 35.0% |
| 2009 | 47.0% | 34.0% | 29.0% |
| 2008 | 48.0% | 36.0% | 31.0% |
| CST English-Language Arts Test | |||
| 2010 | 77.0% | 56.0% | 54.0% |
| 2009 | 72.0% | 51.0% | 50.0% |
| 2008 | 73.0% | 49.0% | 49.0% |
| CST Geometry Test | |||
| 2010 | 86.0% | 68.0% | 46.0% |
| 2009 | 75.0% | 68.0% | 47.0% |
| 2008 | 76.0% | 63.0% | 43.0% |
Grade 10 - % of students at or above proficiency
| School | District | State | |
|---|---|---|---|
| CST Algebra I Test | |||
| 2010 | 16.0% | 9.0% | 12.0% |
| 2009 | 12.0% | 11.0% | 11.0% |
| 2008 | 13.0% | 9.0% | 9.0% |
| CST Algebra II Test | |||
| 2010 | 77.0% | 62.0% | 40.0% |
| 2009 | 73.0% | 60.0% | 37.0% |
| 2008 | 77.0% | 58.0% | 36.0% |
| CST Biology Test | |||
| 2010 | 53.0% | 39.0% | 38.0% |
| 2009 | 51.0% | 34.0% | 34.0% |
| 2008 | 53.0% | 36.0% | 35.0% |
| CST Chemistry Test | |||
| 2010 | 77.0% | 60.0% | 47.0% |
| 2009 | 69.0% | 61.0% | 44.0% |
| 2008 | 75.0% | 58.0% | 41.0% |
| CST English-Language Arts Test | |||
| 2010 | 66.0% | 45.0% | 45.0% |
| 2009 | 62.0% | 44.0% | 44.0% |
| 2008 | 60.0% | 42.0% | 41.0% |
| CST Geometry Test | |||
| 2010 | 43.0% | 17.0% | 14.0% |
| 2009 | 38.0% | 16.0% | 14.0% |
| 2008 | 42.0% | 15.0% | 12.0% |
| CST Science Test | |||
| 2010 | 65.0% | 48.0% | 46.0% |
| 2009 | 67.0% | 47.0% | 44.0% |
| 2008 | 63.0% | 42.0% | 40.0% |
| CST Summative High School Math Test | |||
| 2010 | 100.0% | 79.0% | 75.0% |
| 2009 | 92.0% | 84.0% | 71.0% |
| CST World History Test | |||
| 2010 | 60.0% | 45.0% | 42.0% |
| 2009 | 61.0% | 42.0% | 38.0% |
| 2008 | 58.0% | 40.0% | 33.0% |
| CST Earth Science Test | |||
| 2009 | 32.0% | 32.0% | 23.0% |
| 2008 | 21.0% | 28.0% | 23.0% |
Grade 11 - % of students at or above proficiency
| School | District | State | |
|---|---|---|---|
| CST Algebra I Test | |||
| 2010 | 7.0% | 5.0% | 8.0% |
| 2009 | 9.0% | 5.0% | 8.0% |
| 2008 | 8.0% | 5.0% | 5.0% |
| CST Algebra II Test | |||
| 2010 | 30.0% | 17.0% | 14.0% |
| 2009 | 29.0% | 16.0% | 12.0% |
| 2008 | 31.0% | 17.0% | 11.0% |
| CST Biology Test | |||
| 2010 | 68.0% | 50.0% | 46.0% |
| 2009 | 67.0% | 46.0% | 41.0% |
| 2008 | 59.0% | 35.0% | 39.0% |
| CST Chemistry Test | |||
| 2010 | 36.0% | 32.0% | 30.0% |
| 2009 | 35.0% | 32.0% | 27.0% |
| 2008 | 33.0% | 27.0% | 25.0% |
| CST Earth Science Test | |||
| 2010 | 47.0% | 49.0% | 32.0% |
| 2009 | 45.0% | 38.0% | 26.0% |
| 2008 | 60.0% | 41.0% | 28.0% |
| CST English-Language Arts Test | |||
| 2010 | 60.0% | 42.0% | 42.0% |
| 2009 | 60.0% | 41.0% | 40.0% |
| 2008 | 62.0% | 36.0% | 37.0% |
| CST Geometry Test | |||
| 2010 | 9.0% | 5.0% | 6.0% |
| 2009 | 12.0% | 6.0% | 7.0% |
| 2008 | 13.0% | 5.0% | 6.0% |
| CST Physics Test | |||
| 2010 | 81.0% | 59.0% | 53.0% |
| 2009 | 70.0% | 51.0% | 50.0% |
| 2008 | 84.0% | 56.0% | 47.0% |
| CST Summative High School Math Test | |||
| 2010 | 64.0% | 59.0% | 50.0% |
| 2009 | 60.0% | 55.0% | 47.0% |
| 2008 | 59.0% | 44.0% | 43.0% |
| CST U.S. History Test | |||
| 2010 | 67.0% | 50.0% | 45.0% |
| 2009 | 65.0% | 49.0% | 44.0% |
| 2008 | 67.0% | 42.0% | 38.0% |
End of Course - % of students at or above proficiency
| School | District | State | |
|---|---|---|---|
| CST Algebra I Test | |||
| 2010 | 36.0% | 21.0% | 31.0% |
| 2009 | 29.0% | 19.0% | 28.0% |
| 2008 | 27.0% | 15.0% | 25.0% |
| CST Algebra II Test | |||
| 2010 | 52.0% | 35.0% | 31.0% |
| 2009 | 54.0% | 33.0% | 28.0% |
| 2008 | 54.0% | 35.0% | 27.0% |
| CST Biology Test | |||
| 2010 | 65.0% | 45.0% | 46.0% |
| 2009 | 63.0% | 41.0% | 42.0% |
| 2008 | 65.0% | 41.0% | 42.0% |
| CST Chemistry Test | |||
| 2010 | 52.0% | 41.0% | 38.0% |
| 2009 | 51.0% | 41.0% | 36.0% |
| 2008 | 46.0% | 35.0% | 32.0% |
| CST Earth Science Test | |||
| 2010 | 48.0% | 41.0% | 33.0% |
| 2009 | 47.0% | 35.0% | 28.0% |
| 2008 | 50.0% | 36.0% | 28.0% |
| CST Geometry Test | |||
| 2010 | 49.0% | 27.0% | 27.0% |
| 2009 | 44.0% | 27.0% | 26.0% |
| 2008 | 46.0% | 25.0% | 24.0% |
| CST Physics Test | |||
| 2010 | 82.0% | 59.0% | 49.0% |
| 2009 | 69.0% | 52.0% | 46.0% |
| 2008 | 84.0% | 55.0% | 43.0% |
| CST Summative High School Math Test | |||
| 2010 | 65.0% | 59.0% | 54.0% |
| 2009 | 62.0% | 56.0% | 50.0% |
| 2008 | 59.0% | 44.0% | 47.0% |
| CST World History Test | |||
| 2010 | 60.0% | 45.0% | 41.0% |
| 2009 | 61.0% | 41.0% | 38.0% |
| 2008 | 57.0% | 39.0% | 33.0% |
Source: CA Department of Education 2009-2010
School Map and Similar Schools Nearby
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