Los Osos High

Public 9-12

 6001 Milliken Ave.
       Rancho Cucamonga, CA  91737-7709


(909) 477-6900

District: Chaffey Joint Union High

SchoolDigger Rank:
215th of 2,123 California High Schools

Per Pupil Expenditures:  $8,728 Help

Feeder schools for Los Osos High:

Elementary:    Banyan Elementary
    Caryn Elementary
    Deer Canyon Elementary
    Floyd M. Stork Elementary
    More...
Middle:    Alta Loma Junior High
    Day Creek Intermediate
    Vineyard Junior High

Student/teacher ratio:  24.9
Number of students:  2,867

Racial breakdown:

Hispanic:
39.1%
White:
30.2%
Asian:
20.7%
more

Free/discounted lunch recipients:  28.1%

 See top rated California high schools

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Performance Trends
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Compare Details Los Osos High ranks better than 89.9% of high schools in California. It also ranks first among 10 ranked high schools in the Chaffey Joint Union High School District! (See more...)
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Compare Details In 2022 the calculated Average Standard Score was 88.86. (See more...)
Student Body
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Compare Details Student population at Los Osos High is diverse. Racial makeup is: Hispanic (39.1%), White (30.2%), Asian (20.7%). (See more...)
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Compare Details 28.1% of students are receiving a free or discounted lunch. This is the lowest percentage in the Chaffey Joint Union High School District. (See more...)
Teachers
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Compare Details The student/teacher ratio at Los Osos High is 24.9. 6 high schools in the Chaffey Joint Union High School District have better student/teacher ratios. (See more...)
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Compare Los Osos High employs 115.1 full-time teachers.
Finance
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Compare Details The average total spent per student at Los Osos High is $8,728. 8 high schools in the Chaffey Joint Union High School District spend more per student.
Map and boundary of Los Osos High


School Attendance Areas provided by ATTOM.

Schooldigger 2022 Rankings:

Los Osos High:

SchoolDigger ranks Los Osos High 215th of 2123 California public high schools. (See Los Osos High in the ranking list.)

Chaffey Joint Union High:

SchoolDigger ranks Chaffey Joint Union High 439th of 1535 California school districts. (See district ranking list.)


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Rank History for Los Osos High

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Compare
Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2004 68.86 210th 1653 87.3%
2005 75.49 156th 1901 91.8%
2006 79.38 125th 1968 93.6%
2007 87.37 51st 2063 97.5%
2008 83.38 84th 2117 96.0%
2009 81.54 91st 2238 95.9%
2010 82.89 96th 2281 95.8%
2011 81.90 115th 2367 95.1%
2012 81.84 119th 2354 94.9%
2013 83.18 97th 2426 96.0%
2015 87.31 229th 1994 88.5%
2016 88.55 221st 2039 89.2%
2017 85.39 306th 2021 84.9%
2018 90.05 200th 2017 90.1%
2019 87.14 235th 2133 89.0%
2021 89.42 136th 1290 89.5%
2022 88.86 215th 2123 89.9%

Data source: test scores: California Department of Education, rankings: SchoolDigger.com

Los Osos High Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
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Data source: California Department of Education

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Enrollment information for Los Osos High

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
2002 867 131 101 325 5 n/a n/a 12 1441
2003 867 131 101 325 5 n/a n/a 12 1441
2004 1275 213 161 504 8 n/a n/a 108 2269
2005 1698 292 244 682 8 n/a n/a 125 3049
2006 1751 298 296 791 8 n/a n/a 116 3260
2007 1562 298 322 812 7 n/a n/a 138 3139
2008 1509 332 324 787 5 n/a n/a 0 2957
2009 1457 349 360 834 6 15 187 0 3208
2010 1424 358 395 989 8 18 70 0 3262
2011 1434 381 413 1032 9 20 76 0 3365
2012 1328 352 448 1031 12 12 67 0 3250
2013 1292 331 460 1072 12 8 58 0 3233
2014 1268 314 432 1059 10 8 59 0 3150
2015 1258 274 490 1107 14 18 50 0 3211
2016 1200 258 534 1119 14 18 55 0 3198
2017 1137 220 570 1090 15 16 56 0 3104
2018 1096 218 619 1120 13 14 73 0 3153
2019 1030 218 614 1095 15 15 65 0 3052
2020 991 195 613 1071 10 16 74 0 2970
2021 936 180 629 1102 14 14 79 0 2954
2022 867 169 594 1120 14 8 92 3 2867

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity
For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Los Osos High

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
2002 1441 61.9 23.3 7.1
2003 1441 61.9 23.3 7.1
2004 2269 90.2 25.2 7.2
2005 3049 119.9 25.4 3.9
2006 3260 125.4 26.0 7.3
2007 3139 122.3 25.7 9.6
2008 2957 133.5 22.1 8
2009 3208 118.8 23.6 10.7
2010 3262 117.0 27.8 13.3
2011 3365 n/a n/a 17.6
2012 3250 113.4 28.6 n/a
2013 3233 116.7 27.6 24.3
2014 3150 115.1 27.3 26.3
2015 3211 115.0 27.9 25.8
2016 3198 116.0 27.5 32.6
2017 3104 118.0 26.2 30.9
2018 3153 121.3 25.9 33.3
2019 3052 123.2 24.7 34.2
2020 2970 n/a n/a 32.7
2021 2954 117.1 25.2 33.9
2022 2867 115.1 24.9 28.1

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch
For information about the National School Lunch Program, see the USDA Website

Student/Teacher Ratio Los Osos High

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
2002 1441 61.9 23.3 7.1
2003 1441 61.9 23.3 7.1
2004 2269 90.2 25.2 7.2
2005 3049 119.9 25.4 3.9
2006 3260 125.4 26.0 7.3
2007 3139 122.3 25.7 9.6
2008 2957 133.5 22.1 8
2009 3208 118.8 23.6 10.7
2010 3262 117.0 27.8 13.3
2011 3365 n/a n/a 17.6
2012 3250 113.4 28.6 n/a
2013 3233 116.7 27.6 24.3
2014 3150 115.1 27.3 26.3
2015 3211 115.0 27.9 25.8
2016 3198 116.0 27.5 32.6
2017 3104 118.0 26.2 30.9
2018 3153 121.3 25.9 33.3
2019 3052 123.2 24.7 34.2
2020 2970 n/a n/a 32.7
2021 2954 117.1 25.2 33.9
2022 2867 115.1 24.9 28.1

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio
Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.
Finances

Per Pupil Expenditures for Los Osos High

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YearTotal Expenditures Per Pupil
2018 $8,728

Data source: California Department of Education
Pre and Post Pandemic Data

Impact of COVID-19 on Los Osos High

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank
Pre-pandemic (2018-2019)
Rank
Pandemic (2021-2022)
Change (%)
Ranks 235th of 2133 High schoolsRanks 215th of 2123 High schools
 0.9%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Pandemic (2021-2022)
Change (%)
11th Grade English Language Arts/Literacy (Los Osos High)81.281.6
 0.4%
   11th Grade English Language Arts/Literacy (Chaffey Joint Union High)66.466.5
 0.1%
   11th Grade English Language Arts/Literacy (California)57.354.8
 2.5%
11th Grade Mathematics (Los Osos High)57.852.5
 5.3%
   11th Grade Mathematics (Chaffey Joint Union High)38.430.8
 7.6%
   11th Grade Mathematics (California)32.227
 5.3%
12th Grade Science (Los Osos High)30.435.4
 5%
   12th Grade Science (Chaffey Joint Union High)23.126.1
 3.1%
   12th Grade Science (California)25.626.8
 1.2%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Pandemic (2020-2021)
Change (%)
Total Students30522954
 3.2%
African American218180
 17.4%
American Indian1514
 6.7%
Asian614629
 2.4%
Hispanic10951102
 0.6%
Pacific Islander1514
 6.7%
White1030936
 9.1%
Two or More Races6579
 21.5%
% Free/Discounted Lunch Recipients34.2%33.9%
 0.3%




Frequently Asked Questions about Los Osos High

Students at Los Osos High are 39% Hispanic, 30% White, 21% Asian, 6% African American, 3% Two or more races.

Los Osos High ranks 215th of 2123 California high schools. SchoolDigger rates this school 4 stars out of 5.

In the 2021-22 school year, 2,867 students attended Los Osos High.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education. School Attendance Areas provided by ATTOM.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that school and district boundary data are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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