PROFICIENCY 63% 64% higher than state average
School Rankings Proficiency Averages
51%Chaffey Joint Union High
26%Rancho Cucamonga
38%California

Los Osos High is a school servicing grades 9 to 12 and is located in the district of "Chaffey Joint Union High" in Rancho Cucamonga, CA. There are a total of 3,211 students and 115 teachers at Los Osos High, for a student to teacher ratio of 28 to 1. There are a total of 582 free lunch students and 245 reduced lunch students.

Los Osos High has an average proficiency test score (in mathematics and languages) of 62.5%, which is 64% higher than the California average.

Academics

Students/Teachers
Students3211
Teachers114.64
Student/Teacher ratio28:1
Free lunch582
Reduced lunch245

 

Advanced Placement
AP enrollment916
Taking some courses502
Taking some courses (not tests)424
Passing some courses334
Passing no courses167

Advanced placement (AP) is a program that offers high school students the ability to take college level courses and exams. These programs were created to be at the same level of most first year university courses. If the students were successful in the AP programs, they could potentially receive advanced placement, credit or exemptions when they go on to university. At Los Osos High, there are a total of 916 students enrolled in advanced placement courses, with 502 taking some courses.

Proficiency in mathematics comparison

Proficiency in languages comparison

Proficiency in mathematics by grade

GradeProficiency
All53%
3n/a
4n/a
5n/a
6n/a
7n/a
8n/a
High School53%

Proficiency in languages by grade

GradeProficiency
All72%
3n/a
4n/a
5n/a
6n/a
7n/a
8n/a
High School72%

The proficiency in math and languages tables represent the percentage of students that scored at or above the proficiency level on their standardized state assessment tests. Although these tests are standardized within each state, the tests may vary from state to state. Comparing the results of one state to another may not always be an accurate or fair comparison.

Los Osos High race/ethnicity breakdown

RaceSchoolDistrictCaliforniaNational
White 40.3% 18.5% 24.1% 51.1%
Black 9.8% 8.4% 6.2% 15.9%
Asian 13.7% 6.6% 11.1% 4.7%
Hispanic or Latino 33.5% 63.3% 54.1% 23.6%
American Indian and Alaskan 0.3% 0.4% 0.7% 1.2%
Hawaiian 0.3% 0.5% 0.8% 0.4%
Multiracial 2.1% 2.3% 3.1% 3.1%

Rancho Cucamonga demographics profile

StatisticRancho CucamongaCaliforniaNational
Population38,29439,512,223328,239,523
Population density (sq mi)6,94125691
Median age32.436.037.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)45%52%55%
Speak English38%56%79%
Speak Spanish52%29%13%

Education level achieved in Rancho Cucamonga

IndexRancho CucamongaCaliforniaNational
Completed 8th grade70.7%81.1%84.3%
Completed high school68.5%79.8%83.0%
Completed some college41.8%61.5%59.4%
Completed associate degree21.7%39.8%38.5%
Completed bachelors14.3%32.0%30.3%
Completed masters2.7%11.9%11.5%
Completed professional degree0.8%3.9%3.3%
Completed doctorate0.2%1.6%1.3%
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Reason for reporting
Source: The Los Osos High data displayed above is derived from the 2016 National Center for Education Statistics and from the U.S. Department of Education.