Diamond Bar High

Public 9-12

 21400 Pathfinder Rd.
       Diamond Bar, CA  91765-2747


(909) 594-1405

District: Walnut Valley Unified

SchoolDigger Rank:
89th of 2,346 California High Schools

Per Pupil Expenditures:  $5,915 Help


Feeder schools for Diamond Bar High:

Elementary:    Castle Rock Elementary
    Evergreen Elementary
    Maple Hill Elementary
    Quail Summit Elementary
Middle:    Chaparral Middle
    South Pointe Middle

Student/teacher ratio:  26.5 Help
Number of students:  2,557

Racial breakdown:

Asian:
68.1%
Hispanic:
18.5%
White:
6.5%
more

Free/discounted lunch recipients:  22.8% Help


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 Compare Diamond Bar High to nearby high schools!

Performance Trends
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Compare Details Diamond Bar High ranks better than 96.2% of high schools in California. It also ranks first among 3 ranked high schools in the Walnut Valley Unified School District! (See more...)
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Compare Details In 2023 the calculated Average Standard Score was 94.99. (See more...)
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The Adjusted Cohort Graduation Rate (ACGR) measures the percentage of Diamond Bar High freshmen who graduate within four years, adjusting for students who transfer in or out.
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The high school dropout rate measures the percentage of students who do not complete their high school education.
Help
Chronic absenteeism in a high school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.
Student Body
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Compare Details Diamond Bar High has the largest high school student body size in the Walnut Valley Unified School District. Racial makeup is: Asian (68.1%), Hispanic (18.5%), White (6.5%). (See more...)
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Compare Details 22.8% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Diamond Bar High is 26.5, which is the highest among 3 high schools in the Walnut Valley Unified School District! (See more...)
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Compare Diamond Bar High employs 96.2 full-time teachers.
Finance
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Compare Details The average total spent per student at Diamond Bar High is $5,915, which is the lowest among 3 high schools in the Walnut Valley Unified School District!
Schooldigger 2023 Rankings:

Diamond Bar High:

SchoolDigger ranks Diamond Bar High 89th of 2346 California public high schools. (See Diamond Bar High in the ranking list.)

High School Test Score Ratings by Student Subgroup:


Multi-racial students:
English Language Learner students:
Special Education students:
Low Socio Economic Status students:
Female students:
Male students:
Asian students:
African American students:
Hispanic students:
White students:


Walnut Valley Unified:

SchoolDigger ranks Walnut Valley Unified 123rd of 1560 California school districts. (See district ranking list.)

Average Parent Rating:

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Rank History for Diamond Bar High

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Compare

Rank History for all students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2004 80.33 71st 1653 95.7%
2005 82.69 66th 1901 96.5%
2006 81.71 102nd 1968 94.8%
2007 85.22 66th 2063 96.8%
2008 85.85 56th 2117 97.4%
2009 81.96 86th 2238 96.2%
2010 82.09 108th 2281 95.3%
2011 78.88 157th 2367 93.4%
2012 77.85 176th 2354 92.5%
2013 79.83 144th 2426 94.1%
2015 93.45 117th 1994 94.1%
2016 91.05 170th 2039 91.7%
2017 93.13 126th 2021 93.8%
2018 92.71 146th 2017 92.8%
2019 95.94 83rd 2133 96.1%
2021 93.52 75th 1290 94.2%
2022 94.33 125th 2123 94.1%
2023 94.99 88th 2335 96.2%
See the entire list of California High School Rankings!

Rank History for Multi-racial students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 77.47 73rd 366 80.1%
2019 74.68 103rd 422 75.6%
2022 71.91 130th 515 74.8%
2023 79.91 102nd 780 86.9%
See the entire list of Best California High Schools for Multi-racial Students!

Rank History for English Language Learner students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 99.94 7th 938 99.3%
2019 99.60 5th 941 99.5%
2021 99.93 3rd 467 99.4%
2022 73.08 91st 1044 91.3%
2023 57.74 166th 1315 87.4%
See the entire list of Best California High Schools for English Language Learner Students!

Rank History for Special Education students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2023 82.13 102nd 1539 93.4%
See the entire list of Best California High Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 95.04 83rd 1862 95.5%
2019 97.26 46th 1937 97.6%
2021 91.08 76th 1126 93.3%
2022 97.88 42nd 1943 97.8%
2023 97.92 41st 2237 98.2%
See the entire list of Best California High Schools for Low Socio Economic Status Students!

Rank History for Female students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 92.34 114th 1760 93.5%
2019 93.69 100th 1833 94.5%
2021 92.34 74th 1054 93.0%
2022 92.44 143rd 1858 92.3%
2023 94.40 85th 2106 96.0%
See the entire list of Best California High Schools for Female Students!

Rank History for Disabled students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 66.88 219th 1052 79.2%
2019 73.33 182nd 1117 83.7%
2021 92.03 37th 555 93.3%
2022 84.25 107th 1161 90.8%
See the entire list of Best California High Schools for Disabled Students!

Rank History for Male students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 91.69 151st 1834 91.8%
2019 96.20 75th 1880 96.0%
2021 93.16 80th 1122 92.9%
2022 94.71 110th 1916 94.3%
2023 94.22 100th 2195 95.4%
See the entire list of Best California High Schools for Male Students!

Rank History for Asian students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 74.28 167th 581 71.3%
2019 78.35 113th 582 80.6%
2022 72.09 174th 581 70.1%
2023 74.36 175th 727 75.9%
See the entire list of Best California High Schools for Asian Students!

Rank History for African American students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 88.34 63rd 582 89.2%
2019 88.98 41st 592 93.1%
2022 83.01 63rd 522 87.9%
2023 83.30 82nd 713 88.5%
See the entire list of Best California High Schools for African American Students!

Rank History for Hispanic students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 68.62 524th 1742 69.9%
2019 81.95 236th 1814 87.0%
2022 83.23 213th 1861 88.6%
2023 80.23 245th 2132 88.5%
See the entire list of Best California High Schools for Hispanic Students!

Rank History for White students at Diamond Bar High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 76.02 287th 1173 75.5%
2019 77.18 225th 1222 81.6%
2022 71.57 307th 1204 74.5%
2023 72.12 278th 1424 80.5%
See the entire list of Best California High Schools for White Students!

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

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Diamond Bar High Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 





Data source: California Department of Education

Review counts

All ratings (Avg rating: 5)
100%

0%

0%

0%

0%

  

Reviews:
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Enrollment information for Diamond Bar High

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Compare
Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1988 1252 100 374 255 0 n/a n/a 0 1981
1989 1100 130 502 300 1 n/a n/a 0 2033
1990 1071 116 599 298 3 n/a n/a 0 2087
1991 1031 127 736 321 4 n/a n/a 0 2219
1992 1030 117 848 304 4 n/a n/a 0 2303
1993 1029 120 932 276 4 n/a n/a 0 2361
1994 1018 150 1032 284 3 n/a n/a 0 2487
1995 990 158 1265 330 2 n/a n/a 0 2745
1996 990 158 1265 330 2 n/a n/a 0 2745
1997 960 178 1357 318 0 n/a n/a 0 2813
1998 916 171 1443 351 0 n/a n/a 0 2881
1999 864 169 1471 350 0 n/a n/a 0 2854
2000 850 154 1503 352 2 n/a n/a 0 2861
2001 769 161 1552 409 6 n/a n/a 0 2897
2002 774 163 1681 411 2 n/a n/a 0 3031
2003 774 163 1681 411 2 n/a n/a 0 3031
2004 742 146 1809 396 1 n/a n/a 0 3094
2005 722 147 1918 394 1 n/a n/a 0 3182
2006 690 138 2056 429 1 n/a n/a 0 3314
2007 659 112 2049 437 0 n/a n/a 0 3257
2008 604 114 2098 439 3 n/a n/a 0 3258
2009 533 100 2090 449 3 14 4 0 3193
2010 468 91 2079 450 2 16 4 0 3110
2011 409 88 2135 466 2 12 7 0 3119
2012 361 84 2075 502 0 13 9 0 3044
2013 337 98 2056 504 0 18 17 0 3030
2014 327 95 2014 509 0 19 24 0 2988
2015 344 88 2025 534 1 26 32 0 3050
2016 337 89 2043 532 1 18 41 0 3061
2017 313 82 1999 578 0 13 57 0 3042
2018 264 83 1966 530 0 11 64 0 2918
2019 225 75 1836 497 3 7 66 0 2709
2020 217 68 1788 476 2 6 68 0 2625
2021 197 61 1725 460 2 8 91 0 2544
2022 187 54 1706 473 1 12 101 0 2534
2023 167 55 1742 474 0 13 104 2 2557

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 Diamond Bar High

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 1981 72.2 27.4 n/a
1989 2033 74.7 27.2 n/a
1990 2087 78.4 26.6 n/a
1991 2219 79.9 27.7 n/a
1992 2303 81.2 28.3 0.3
1993 2361 81.3 29.0 0.5
1994 2487 86.6 28.7 0.6
1995 2745 97.2 28.2 3.7
1996 2745 97.2 28.2 3.7
1997 2813 106.2 26.5 3.9
1998 2881 109.7 26.3 10.2
1999 2854 110.4 25.9 4
2000 2861 110.9 25.8 3.1
2001 2897 115.2 25.1 3
2002 3031 124.1 24.4 4.7
2003 3031 124.1 24.4 4.7
2004 3094 124.1 24.9 5.5
2005 3182 123.1 25.8 5.3
2006 3314 122.2 27.1 5.5
2007 3257 127.4 25.6 5.3
2008 3258 143.6 22.7 3.1
2009 3193 122.2 22.6 5.5
2010 3110 117.7 26.4 7.2
2011 3119 n/a n/a 7.9
2012 3044 111.7 27.2 n/a
2013 3030 113.5 26.6 11.2
2014 2988 111.6 26.7 10.3
2015 3050 112.0 27.2 9.3
2016 3061 113.0 27.0 10.3
2017 3042 116.4 26.1 10.2
2018 2918 113.1 25.7 19.2
2019 2709 107.7 25.1 19.8
2020 2625 n/a n/a 18.4
2021 2544 99.8 25.4 20.2
2022 2534 98.4 25.7 22.7
2023 2557 96.2 26.5 22.8

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

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Diamond Bar High

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Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 1981 72.2 27.4 n/a
1989 2033 74.7 27.2 n/a
1990 2087 78.4 26.6 n/a
1991 2219 79.9 27.7 n/a
1992 2303 81.2 28.3 0.3
1993 2361 81.3 29.0 0.5
1994 2487 86.6 28.7 0.6
1995 2745 97.2 28.2 3.7
1996 2745 97.2 28.2 3.7
1997 2813 106.2 26.5 3.9
1998 2881 109.7 26.3 10.2
1999 2854 110.4 25.9 4
2000 2861 110.9 25.8 3.1
2001 2897 115.2 25.1 3
2002 3031 124.1 24.4 4.7
2003 3031 124.1 24.4 4.7
2004 3094 124.1 24.9 5.5
2005 3182 123.1 25.8 5.3
2006 3314 122.2 27.1 5.5
2007 3257 127.4 25.6 5.3
2008 3258 143.6 22.7 3.1
2009 3193 122.2 22.6 5.5
2010 3110 117.7 26.4 7.2
2011 3119 n/a n/a 7.9
2012 3044 111.7 27.2 n/a
2013 3030 113.5 26.6 11.2
2014 2988 111.6 26.7 10.3
2015 3050 112.0 27.2 9.3
2016 3061 113.0 27.0 10.3
2017 3042 116.4 26.1 10.2
2018 2918 113.1 25.7 19.2
2019 2709 107.7 25.1 19.8
2020 2625 n/a n/a 18.4
2021 2544 99.8 25.4 20.2
2022 2534 98.4 25.7 22.7
2023 2557 96.2 26.5 22.8

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 Diamond Bar High

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YearTotal Expenditures Per Pupil
2018 $5,915

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

Impact of COVID-19 on Diamond Bar 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
Post pandemic (2022-2023)
Change (%)
Ranks 83rd of 2133 High schoolsRanks 88th of 2335 High schools
 0.1%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
11th Grade English Language Arts/Literacy (Diamond Bar High)80.479.3
 1.1%
   11th Grade English Language Arts/Literacy (Walnut Valley Unified)80.777.6
 3.1%
   11th Grade English Language Arts/Literacy (California)57.355.4
 1.9%
11th Grade Mathematics (Diamond Bar High)72.968.1
 4.8%
   11th Grade Mathematics (Walnut Valley Unified)71.464.2
 7.2%
   11th Grade Mathematics (California)32.227.4
 4.9%
12th Grade Science (Diamond Bar High)52.454.2
 1.8%
   12th Grade Science (Walnut Valley Unified)51.853.2
 1.4%
   12th Grade Science (California)25.626.9
 1.3%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students27092557
 5.6%
African American7555
 26.7%
American Indian30
 100%
Asian18361742
 5.1%
Hispanic497474
 4.6%
Pacific Islander713
 85.7%
White225167
 25.8%
Two or More Races66104
 57.6%
% Free/Discounted Lunch Recipients19.8%22.8%
 2.9%


Schools Near Diamond Bar High









Frequently Asked Questions about Diamond Bar High

In the 2022-23 school year, 2,557 students attended Diamond Bar High.

Diamond Bar High is fed by the following schools:

Elementary : Castle Rock Elementary
Elementary : Evergreen Elementary
Elementary : Maple Hill Elementary
Elementary : Quail Summit Elementary
Middle : Chaparral Middle
Middle : South Pointe Middle

Students at Diamond Bar High are 68% Asian, 19% Hispanic, 7% White, 4% Two or more races, 2% African American.

Yes! Diamond Bar High is one of the best high schools in the state. It ranks 89th of 2346 California high schools.


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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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