Castle Rock Elementary

Public K-5

 2975 Castle Rock Rd.
       Diamond Bar, CA  91765-3420


(909) 598-5006

District: Walnut Valley Unified

SchoolDigger Rank:
578th of 5,868 California Elementary Schools

Per Pupil Expenditures:  $5,089 Help


Students who attend Castle Rock Elementary usually attend:

Middle:    South Pointe Middle
High:    Diamond Bar High

Student/teacher ratio:  24.6 Help
Number of students:  646

Racial breakdown:

Asian:
70.6%
Hispanic:
17.2%
Two or more races:
6.0%
more

Free/discounted lunch recipients:  26.8% Help


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 Compare Castle Rock Elementary to nearby elementary schools!

Performance Trends
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Compare Details Castle Rock Elementary ranks better than 90.1% of elementary schools in California. It also ranks 6th among 9 ranked elementary schools in the Walnut Valley Unified School District. (See more...)
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Compare Details In 2023 the calculated Average Standard Score was 91.91. (See more...)
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
Help
Compare Details Racial makeup is: Asian (70.6%), Hispanic (17.2%), two or more races (6%). (See more...)
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Compare Details 26.8% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Castle Rock Elementary is 24.6, which is the lowest among 9 elementary schools in the Walnut Valley Unified School District! (See more...)
Help
Compare Castle Rock Elementary employs 26.2 full-time teachers.
Finance
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Compare Details The average total spent per student at Castle Rock Elementary is $5,089. 7 elementary schools in the Walnut Valley Unified School District spend more per student.
Schooldigger 2023 Rankings:

Castle Rock Elementary:

SchoolDigger ranks Castle Rock Elementary 578th of 5868 California public elementary schools. (See Castle Rock Elementary in the ranking list.)

Elementary School Test Score Ratings by Student Subgroup:


English Language Learner students:
Low Socio Economic Status students:
Female students:
Male students:
Asian students:
Hispanic students:


Walnut Valley Unified:

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


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Rank History for Castle Rock Elementary

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Rank History for all students at Castle Rock Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2004 80.14 882nd 4809 81.7%
2005 83.49 789th 4822 83.6%
2006 80.98 923rd 4818 80.8%
2007 82.60 869th 5113 83.0%
2008 84.94 755th 5113 85.2%
2009 91.22 405th 5193 92.2%
2010 91.09 387th 5314 92.7%
2011 90.96 382nd 5377 92.9%
2012 87.70 569th 5390 89.4%
2013 92.01 329th 5530 94.1%
2015 91.24 556th 5611 90.1%
2016 94.40 349th 5614 93.8%
2017 90.63 600th 5692 89.5%
2018 88.99 684th 5662 87.9%
2019 89.41 675th 5789 88.3%
2022 91.98 596th 5883 89.9%
2023 91.91 573rd 5848 90.2%
See the entire list of California Elementary School Rankings!

Rank History for English Language Learner students at Castle Rock Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2019 96.64 72nd 3275 97.8%
2022 79.85 299th 3311 91.0%
2023 76.91 321st 3240 90.1%
See the entire list of Best California Elementary Schools for English Language Learner Students!

Rank History for Low Socio Economic Status students at Castle Rock Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 85.81 461st 5084 90.9%
2019 90.68 280th 5173 94.6%
2022 95.03 182nd 5264 96.5%
2023 95.86 165th 5355 96.9%
See the entire list of Best California Elementary Schools for Low Socio Economic Status Students!

Rank History for Female students at Castle Rock Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 85.72 790th 5413 85.4%
2019 85.20 809th 5492 85.3%
2022 90.01 636th 5635 88.7%
2023 87.80 746th 5595 86.7%
See the entire list of Best California Elementary Schools for Female Students!

Rank History for Disabled students at Castle Rock Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2019 57.99 770th 2585 70.2%
2022 55.78 691st 2227 69.0%
See the entire list of Best California Elementary Schools for Disabled Students!

Rank History for Male students at Castle Rock Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 88.95 629th 5431 88.4%
2019 90.16 570th 5510 89.7%
2022 91.75 524th 5663 90.7%
2023 92.01 500th 5627 91.1%
See the entire list of Best California Elementary Schools for Male Students!

Rank History for Asian students at Castle Rock Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 61.88 521st 1071 51.4%
2019 62.30 514th 1149 55.3%
2022 62.36 552nd 1154 52.2%
2023 59.98 603rd 1183 49.0%
See the entire list of Best California Elementary Schools for Asian Students!

Rank History for Hispanic students at Castle Rock Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 57.38 1765th 4830 63.5%
2019 60.89 1637th 4963 67.0%
2022 88.61 409th 5084 92.0%
2023 79.62 748th 5079 85.3%
See the entire list of Best California Elementary Schools for Hispanic 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.

Castle Rock Elementary Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 






Data source: California Department of Education

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Enrollment information for Castle Rock Elementary

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1988 380 26 191 102 0 n/a n/a 0 699
1989 378 34 263 121 0 n/a n/a 0 796
1990 311 27 269 101 0 n/a n/a 0 708
1991 315 31 295 96 0 n/a n/a 0 737
1992 317 34 311 111 0 n/a n/a 0 773
1993 274 31 296 102 5 n/a n/a 0 708
1994 278 39 292 94 0 n/a n/a 0 703
1995 204 33 326 110 0 n/a n/a 0 673
1996 204 33 326 110 0 n/a n/a 0 673
1997 177 37 350 117 0 n/a n/a 0 681
1998 151 29 375 122 0 n/a n/a 0 677
1999 150 27 429 104 2 n/a n/a 0 712
2000 134 25 411 109 1 n/a n/a 0 680
2001 131 27 385 109 1 n/a n/a 0 653
2002 122 20 342 118 3 n/a n/a 0 605
2003 122 20 342 118 3 n/a n/a 0 605
2004 103 24 368 105 0 n/a n/a 0 600
2005 96 27 377 101 0 n/a n/a 0 601
2006 85 27 362 105 0 n/a n/a 3 582
2007 75 25 370 92 0 n/a n/a 5 567
2008 75 21 348 98 1 n/a n/a 0 543
2009 75 17 326 87 1 2 18 0 526
2010 70 19 315 89 2 1 7 0 503
2011 74 18 314 95 3 1 7 0 512
2012 68 22 339 93 2 0 9 0 533
2013 55 18 366 108 1 2 26 0 576
2014 47 15 376 110 2 2 27 0 579
2015 48 16 389 112 2 3 35 0 605
2016 46 9 403 124 1 3 38 0 624
2017 50 10 437 137 1 3 38 0 676
2018 42 7 466 129 1 3 41 0 689
2019 37 6 458 127 1 2 36 0 667
2020 29 5 469 122 1 2 34 0 662
2021 28 8 485 120 1 3 38 0 683
2022 31 8 465 118 1 3 37 0 663
2023 26 8 456 111 1 5 39 0 646

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 Castle Rock Elementary

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 699 25.0 27.9 n/a
1989 796 30.5 26.0 n/a
1990 708 27.0 26.2 n/a
1991 737 26.0 28.3 n/a
1992 773 26.4 29.2 1.6
1993 708 24.0 29.5 1.1
1994 703 26.6 26.4 2
1995 673 23.0 29.3 2.8
1996 673 23.0 29.3 2.8
1997 681 31.5 21.6 6.5
1998 677 32.5 20.8 6.6
1999 712 33.0 21.6 5.5
2000 680 31.0 21.9 4.3
2001 653 31.0 21.1 7.4
2002 605 29.0 20.9 10.7
2003 605 29.0 20.9 10.7
2004 600 29.5 20.3 14.5
2005 601 29.5 20.4 14.5
2006 582 30.0 19.4 15
2007 567 29.0 19.6 13.3
2008 543 31.0 17.5 7.6
2009 526 26.5 18.5 9.9
2010 503 22.0 22.8 10.5
2011 512 n/a n/a 9.2
2012 533 21.0 25.3 n/a
2013 576 21.1 27.2 10.2
2014 579 22.5 25.7 5.5
2015 605 23.0 26.3 7.9
2016 624 23.0 27.1 9
2017 676 26.0 26.0 10.1
2018 689 27.0 25.5 20.9
2019 667 26.2 25.4 21.9
2020 662 n/a n/a 16.3
2021 683 27.2 25.0 19.5
2022 663 28.9 22.9 23.2
2023 646 26.2 24.6 26.8

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 Castle Rock Elementary

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 699 25.0 27.9 n/a
1989 796 30.5 26.0 n/a
1990 708 27.0 26.2 n/a
1991 737 26.0 28.3 n/a
1992 773 26.4 29.2 1.6
1993 708 24.0 29.5 1.1
1994 703 26.6 26.4 2
1995 673 23.0 29.3 2.8
1996 673 23.0 29.3 2.8
1997 681 31.5 21.6 6.5
1998 677 32.5 20.8 6.6
1999 712 33.0 21.6 5.5
2000 680 31.0 21.9 4.3
2001 653 31.0 21.1 7.4
2002 605 29.0 20.9 10.7
2003 605 29.0 20.9 10.7
2004 600 29.5 20.3 14.5
2005 601 29.5 20.4 14.5
2006 582 30.0 19.4 15
2007 567 29.0 19.6 13.3
2008 543 31.0 17.5 7.6
2009 526 26.5 18.5 9.9
2010 503 22.0 22.8 10.5
2011 512 n/a n/a 9.2
2012 533 21.0 25.3 n/a
2013 576 21.1 27.2 10.2
2014 579 22.5 25.7 5.5
2015 605 23.0 26.3 7.9
2016 624 23.0 27.1 9
2017 676 26.0 26.0 10.1
2018 689 27.0 25.5 20.9
2019 667 26.2 25.4 21.9
2020 662 n/a n/a 16.3
2021 683 27.2 25.0 19.5
2022 663 28.9 22.9 23.2
2023 646 26.2 24.6 26.8

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.

Kindergarten Immunization Rates

Castle Rock Elementary

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Compare
YearCompletely ImmunizedReligious ExemptionMedical ExemptionConditionalPolioHepatitis BVaricellaDTPMMR
2012100.0%0.0%0.0%0.0%100.0%100.0%100.0%100.0%100.0%
201397.0%1.0%0.0%2.0%98.0%99.0%99.0%98.0%97.0%
2014100.0%0.0%0.0%0.0%100.0%100.0%100.0%100.0%100.0%
201599.0%0.0%0.0%1.0%99.0%99.0%100.0%99.0%99.0%
201698.0%1.0%0.0%1.0%99.0%99.0%99.0%98.0%99.0%
2017≥99.0%≤1.0%≤1.0%≤1.0%≥99.0%≥99.0%≥99.0%≥99.0%≥99.0%
2018≥99.0%≤1.0%≤1.0%≤1.0%≥99.0%≥99.0%≥99.0%≥99.0%≥99.0%
2019≥99.0%≤1.0%≤1.0%≥99.0%≥99.0%≥99.0%≥99.0%≥99.0%
202097.2%0.0%2.8%98.2%

Data source: California Department of Public Health
Finances

Per Pupil Expenditures for Castle Rock Elementary

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YearTotal Expenditures Per Pupil
2018 $5,089

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

Impact of COVID-19 on Castle Rock Elementary

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 675th of 5789 Elementary schoolsRanks 573rd of 5848 Elementary schools
 1.9%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
3rd Grade English Language Arts/Literacy (Castle Rock Elementary)69.671.9
 2.3%
   3rd Grade English Language Arts/Literacy (Walnut Valley Unified)75.972.7
 3.2%
   3rd Grade English Language Arts/Literacy (California)48.543
 5.6%
3rd Grade Mathematics (Castle Rock Elementary)77.268.1
 9.1%
   3rd Grade Mathematics (Walnut Valley Unified)81.677.8
 3.8%
   3rd Grade Mathematics (California)50.245.1
 5.1%
4th Grade English Language Arts/Literacy (Castle Rock Elementary)64.576.9
 12.4%
   4th Grade English Language Arts/Literacy (Walnut Valley Unified)75.174.1
 1%
   4th Grade English Language Arts/Literacy (California)49.543.7
 5.7%
4th Grade Mathematics (Castle Rock Elementary)71.375.6
 4.3%
   4th Grade Mathematics (Walnut Valley Unified)75.777.3
 1.6%
   4th Grade Mathematics (California)44.940.8
 4.1%
5th Grade English Language Arts/Literacy (Castle Rock Elementary)78.172
 6.1%
   5th Grade English Language Arts/Literacy (Walnut Valley Unified)78.776.4
 2.4%
   5th Grade English Language Arts/Literacy (California)51.746.7
 5%
5th Grade Mathematics (Castle Rock Elementary)73.265.6
 7.6%
   5th Grade Mathematics (Walnut Valley Unified)73.967.2
 6.7%
   5th Grade Mathematics (California)3833.4
 4.6%
5th Grade Science (Castle Rock Elementary)57.458
 0.6%
   5th Grade Science (Walnut Valley Unified)61.262.5
 1.2%
   5th Grade Science (California)31.731.9
 0.1%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students667646
 3.1%
African American68
 33.3%
American Indian11
Asian458456
 0.4%
Hispanic127111
 12.6%
Pacific Islander25
 150%
White3726
 29.7%
Two or More Races3639
 8.3%
% Free/Discounted Lunch Recipients21.9%26.8%
 4.9%


Schools Near Castle Rock Elementary









Frequently Asked Questions about Castle Rock Elementary

In the 2022-23 school year, 646 students attended Castle Rock Elementary.

Students who attend Castle Rock Elementary usually go on to attend:

Middle : South Pointe Middle
High : Diamond Bar High

Yes. Castle Rock Elementary ranks in the top 9.9% of California elementary schools.

Students at Castle Rock Elementary are 71% Asian, 17% Hispanic, 6% Two or more races, 4% White, 1% African American.


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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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