Chaparral Middle School (Ranked Top 5% for 2025-26)

1405 South Spruce Tree Dr.
Diamond Bar, CA 91765

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Top 5%

Tel: (909) 861-6227

chaparralmiddle.wvusd.org

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SAVE SCHOOL

Serving 1,204 students in grades 6-8, Chaparral Middle School ranks in the top 5% of all schools in California for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%).

The percentage of students achieving is 74% (which is higher than the California state average of 34%). The percentage of students achieving is 80% (which is higher than the California state average of 47%).

The student-teacher ratio of 26:1 is higher than the California state level of 21:1.

Minority enrollment is 95% of the student body (majority Asian), which is higher than the California state average of 80% (majority Hispanic and Asian).

Quick Facts (2025-26)

Grades: 6-8
Enrollment: 1,204 students
Student-Teacher Ratio: 26:1
Minority Enrollment: 95%
: Top 5% in CA
: 74% (Top 10%)
: 80% (Top 5%)
: 65% (Top 10%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education

Top Rankings

Chaparral Middle School ranks among the top 20% of public schools in California for:

School Overview

Chaparral Middle School's student population of 1,204 students has stayed relatively flat over five school years.

The teacher population of 46 teachers has stayed relatively flat over five school years.

Grades Offered

Grades 6-8

View Data

Distribution of Students By Grade Trends
Grade	Chaparral Middle School
6	415
7	420
8	369

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Total Students

1,204 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Chaparral Middle School
2023	1,133
2022	1,111
2021	1,194
2020	1,259
2019	1,259
2018	1,222
2017	1,222
2016	1,212
2015	1,236
2014	1,291
2013	1,322
2012	1,306
2011	1,281
2010	1,260
2009	1,263
2008	1,293
2007	1,325
2006	1,305
2005	1,313
2004	1,334
2003	1,300
2002	1,279
2001	1,217
2000	1,198
1999	1,187
1998	1,180
1997	1,180
1996	1,243
1995	1,228
1994	1,169
1993	1,113
1992	1,084
1991	1,019
1990	1,209
1989	1,161
1988	1,052
1987	1,001

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Gender %

Total Classroom Teachers

46 teachers

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Total Classroom Teachers Trends Over Years (1990-2023)
Year	Chaparral Middle School
2023	44
2022	46
2021	48
2020	46
2019	46
2018	47
2017	47
2016	46
2015	47
2014	48
2013	48
2012	48
2010	49
2009	49
2008	55
2007	49
2006	46
2005	48
2004	52
2003	54
2002	49
2001	47
2000	46
1999	45
1998	44
1997	46
1996	43
1995	45
1994	42
1993	42
1992	40
1991	39
1990	47

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Year Founded

1976

School Calendar

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Last Day of School

Sat. May 30, 2026

School Mascot

Cougars

School Rankings

Chaparral Middle School ranks within the top 5% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).

The of Chaparral Middle School is 0.41, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.

This School

State Level (CA)

#438 out of 9523 schools
(Top 5%)

View Data

Overall School Rank Trends Over Years (2011-2023)
Year	Chaparral Middle School
2023	#438
2022	#447
2019	#569
2018	#508
2017	#483
2016	#636
2015	#601
2014	#2390
2013	#854
2012	#795
2011	#845

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74%

34%

View Data

Math Proficiency Comparison Over Years (2011-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	74%	34%	71%
2022	73%	33%	70%
2019	77%	40%	75%
2018	76%	39%	74%
2017	74%	38%	73%
2016	69%	37%	71%
2015	66%	34%	68%
2014	50%	63%	89%
2013	80%	59%	84%
2012	81%	59%	84%
2011	80%	58%	82%

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80%

47%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2022	80%	47%	76%
2019	77%	51%	77%
2018	79%	50%	74%
2017	79%	48%	75%
2016	77%	48%	74%
2015	75%	44%	72%
2014	50%	58%	79%
2013	82%	57%	80%
2012	84%	58%	82%
2011	82%	56%	82%
2010	82%	54%	80%

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65%

29%

Student-Teacher Ratio

26:1

21:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	26:1	22:1	25:1
2022	24:1	21:1	24:1
2021	25:1	22:1	24:1
2020	27:1	23:1	25:1
2019	27:1	23:1	25:1
2018	26:1	23:1	25:1
2017	26:1	23:1	25:1
2016	26:1	24:1	26:1
2015	26:1	24:1	26:1
2014	27:1	24:1	26:1
2013	27:1	24:1	26:1
2012	27:1	23:1	26:1
2010	26:1	21:1	24:1
2009	26:1	20:1	23:1
2008	24:1	18:1	21:1
2007	27:1	21:1	24:1
2006	28:1	20:1	24:1
2005	27:1	21:1	24:1
2004	26:1	21:1	23:1
2003	24:1	20:1	23:1
2002	26:1	20:1	23:1
2001	26:1	20:1	23:1
2000	26:1	21:1	24:1
1999	26:1	21:1	24:1
1998	27:1	21:1	24:1
1997	26:1	23:1	25:1
1996	29:1	25:1	27:1
1995	28:1	25:1	27:1
1994	28:1	25:1	28:1
1993	26:1	25:1	28:1
1992	27:1	24:1	28:1
1991	26:1	24:1	27:1
1990	26:1	24:1	26:1

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American Indian

n/a

Asian

75%

12%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	71%	12%	68%
2022	69%	12%	67%
2021	69%	12%	66%
2020	67%	12%	65%
2019	67%	12%	65%
2018	66%	11%	63%
2017	66%	11%	63%
2016	62%	11%	63%
2015	63%	11%	64%
2014	63%	11%	62%
2013	64%	11%	63%
2012	65%	11%	63%
2011	65%	11%	63%
2010	67%	11%	63%
2009	66%	11%	63%
2008	66%	12%	65%
2007	63%	12%	64%
2006	62%	12%	62%
2005	61%	12%	60%
2004	59%	12%	58%
2003	59%	11%	57%
2002	57%	11%	56%
2001	55%	11%	54%
2000	52%	11%	52%
1999	51%	11%	50%
1998	49%	11%	49%
1997	47%	11%	47%
1996	45%	11%	45%
1995	44%	11%	44%
1994	41%	11%	42%
1993	39%	11%	40%
1992	34%	11%	37%
1991	31%	11%	33%

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Hispanic

16%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	18%	55%	22%
2022	18%	56%	23%
2021	19%	56%	23%
2020	18%	55%	23%
2019	18%	55%	23%
2018	20%	54%	24%
2017	20%	54%	24%
2016	21%	54%	23%
2015	20%	54%	23%
2014	19%	53%	23%
2013	18%	53%	23%
2012	16%	52%	22%
2011	16%	51%	22%
2010	15%	50%	21%
2009	14%	49%	20%
2008	14%	50%	19%
2007	14%	49%	19%
2006	15%	48%	19%
2005	14%	47%	19%
2004	13%	46%	19%
2003	12%	45%	18%
2002	13%	44%	19%
2001	14%	43%	19%
2000	13%	42%	18%
1999	12%	41%	18%
1998	12%	40%	18%
1997	12%	40%	18%
1996	11%	39%	18%
1995	12%	38%	18%
1994	11%	37%	18%
1993	10%	36%	18%
1992	9%	35%	18%
1991	10%	34%	19%

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Black

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	1%	5%	1%
2022	2%	5%	1%
2021	2%	5%	1%
2020	2%	5%	2%
2019	2%	5%	2%
2018	3%	6%	2%
2017	3%	6%	2%
2016	3%	6%	2%
2015	3%	6%	2%
2014	3%	6%	3%
2013	3%	6%	3%
2012	3%	6%	3%
2011	4%	7%	3%
2010	4%	7%	3%
2009	4%	7%	3%
2008	4%	8%	3%
2007	4%	8%	3%
2006	4%	8%	4%
2005	4%	8%	4%
2004	5%	8%	4%
2003	5%	8%	5%
2002	5%	8%	5%
2001	4%	8%	5%
2000	4%	9%	5%
1999	4%	9%	6%
1998	4%	9%	6%
1997	4%	9%	6%
1996	4%	9%	6%
1995	4%	9%	6%
1994	5%	9%	6%
1993	5%	9%	5%
1992	5%	9%	5%
1991	5%	9%	5%

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White

20%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	6%	21%	5%
2022	6%	21%	5%
2021	7%	22%	6%
2020	8%	23%	6%
2019	8%	23%	6%
2018	9%	24%	8%
2017	9%	24%	8%
2016	12%	24%	9%
2015	12%	24%	9%
2014	13%	25%	9%
2013	14%	25%	10%
2012	15%	26%	11%
2011	14%	27%	11%
2010	14%	27%	12%
2009	16%	28%	13%
2008	16%	29%	13%
2007	19%	29%	14%
2006	19%	31%	15%
2005	21%	31%	17%
2004	23%	32%	19%
2003	24%	34%	19%
2002	25%	35%	20%
2001	27%	36%	22%
2000	31%	37%	25%
1999	33%	38%	26%
1998	35%	39%	27%
1997	37%	39%	29%
1996	40%	40%	31%
1995	40%	41%	32%
1994	43%	42%	34%
1993	46%	43%	37%
1992	52%	44%	40%
1991	54%	45%	43%

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Hawaiian

n/a

View Data

Native Hawaiian or Pacific Islander Student Percentage Comparison Over Years (2011-2014)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2014	1%	1%	1%
2013	1%	1%
2012	1%	1%
2011	1%	1%

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Two or more races

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Two or More Races Student Percentage Comparison Over Years (2014-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	4%	6%	4%
2022	4%	5%	4%
2021	3%	5%	4%
2020	4%	4%	4%
2019	4%	4%	4%
2018	2%	4%	3%
2017	2%	4%	3%
2016	2%	4%	3%
2015	2%	3%	2%
2014	1%	3%	2%

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All Ethnic Groups

0.41

0.63

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	0.46	0.64	0.50
2022	0.49	0.63	0.51
2021	0.49	0.62	0.51
2020	0.52	0.63	0.53
2019	0.52	0.63	0.53
2018	0.52	0.64	0.54
2017	0.52	0.64	0.54
2016	0.56	0.64	0.54
2015	0.55	0.64	0.54
2014	0.55	0.65	0.56
2013	0.55	0.65	0.55
2012	0.53	0.65	0.55
2011	0.54	0.67	0.55
2010	0.53	0.67	0.55
2009	0.52	0.71	0.55
2008	0.53	0.65	0.54
2007	0.55	0.67	0.55
2006	0.56	0.66	0.56
2005	0.57	0.67	0.58
2004	0.59	0.67	0.59
2003	0.59	0.67	0.61
2002	0.60	0.67	0.61
2001	0.62	0.67	0.63
2000	0.63	0.67	0.64
1999	0.63	0.67	0.65
1998	0.63	0.67	0.66
1997	0.63	0.67	0.67
1996	0.64	0.67	0.67
1995	0.65	0.67	0.67
1994	0.64	0.67	0.68
1993	0.64	0.67	0.68
1992	0.61	0.67	0.68
1991	0.60	0.67	0.68

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Eligible for

24%

54%

View Data

Free Lunch Eligibility Comparison Over Years (1995-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	22%	51%	24%
2022	21%	51%	24%
2021	22%	53%	22%
2020	19%	52%	20%
2019	19%	52%	20%
2018	7%	49%	9%
2017	7%	49%	9%
2016	8%	50%	10%
2015	5%	50%	6%
2014	7%	49%	9%
2013	9%	48%	10%
2011	6%	46%	8%
2010	5%	46%	8%
2009	5%	43%	6%
2008	4%	41%	4%
2007	4%	40%	6%
2006	5%	40%	7%
2005	5%	40%	6%
2004	5%	40%	6%
2003	4%	39%	6%
2002	3%	39%	4%
2001	4%	39%	4%
2000	1%	40%	5%
1999	4%	40%	5%
1998	2%	47%	6%
1997	4%	47%	7%
1996	2%	46%	6%
1995	1%	45%	5%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2002-2023)
Year	Chaparral Middle School	California	Walnut Valley Unified School District
2023	1%	8%	2%
2022	1%	7%	1%
2021	1%	6%	1%
2020	2%	7%	2%
2019	2%	7%	2%
2018	3%	9%	3%
2017	3%	9%	3%
2016	4%	9%	4%
2015	5%	9%	6%
2014	4%	9%	5%
2013	4%	7%	5%
2011	4%	8%	5%
2010	4%	9%	5%
2009	5%	10%	5%
2008	3%	10%	3%
2007	3%	10%	5%
2006	4%	9%	4%
2005	3%	9%	4%
2004	3%	9%	4%
2003	2%	9%	3%
2002	3%	8%	3%

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School Statewide Testing

View Education Department Test Scores

School District Name

Walnut Valley Unified School District

Source: National Center for Education Statistics (NCES), CA Dept. of Education

School Notes

School Mascot: Cougars

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is Chaparral Middle School's ranking?

Chaparral Middle School is ranked #438 out of 9,523 schools, which ranks it among the top 5% of public schools in California.

What schools are Chaparral Middle School often compared to?

Chaparral Middle Schoolis often viewed alongside schools like South Pointe Middle School by visitors of our site.

What percent of students have achieved state testing proficiency in math and reading?

74% of students have achieved math proficiency (compared to the 34% CA state average), while 80% of students have achieved reading proficiency (compared to the 47% CA state average).

How many students attend Chaparral Middle School?

1,204 students attend Chaparral Middle School.

What is the racial composition of the student body?

75% of Chaparral Middle School students are Asian, 16% of students are Hispanic, 5% of students are White, 3% of students are Two or more races, and 1% of students are Black.

What is the student-teacher ratio of Chaparral Middle School?

Chaparral Middle School has a student ration of 26:1, which is higher than the California state average of 21:1.

What grades does Chaparral Middle School offer ?

Chaparral Middle School offers enrollment in grades 6-8

What school district is Chaparral Middle School part of?

Chaparral Middle School is part of Walnut Valley Unified School District.