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Chaparral Middle

Public Grades 6-8

60^th

SchoolDigger Rank ?

of 2,761 California Middle Schools

Better than 98% of California middle schools

Summary

Chaparral Middle is a top-ranked public school serving grades 6-8 with about 1,350 students in Diamond Bar, California, as part of the highly-regarded Walnut Valley Unified School District.

The school consistently performs in the top 2-4% of all California middle schools, with over 80% of students proficient in English and Math, significantly outpacing state and district averages. It achieves this excellence efficiently, spending less per student than many nearby schools like Simons Middle or Marshall Middle, which have lower rankings. Chaparral also excels in supporting all students, ranking exceptionally high for English Learners and students from lower socioeconomic backgrounds, and it maintains a remarkably low chronic absenteeism rate of just 3.2%.

This high performance is a hallmark of the Walnut Valley Unified district, as other district schools like South Pointe Middle and Suzanne Middle are also highly ranked, creating a stark contrast with middle schools in neighboring districts. The school's success points to effective teaching and a strong school culture, demonstrating that outstanding results are driven by more than just funding or small class sizes.

1,349

Students ?

28.2

Student/teacher ratio ?

$14,509

Per pupil spending ?

24.6%

Free/discounted lunch ?

1405 South Spruce Tree Dr.
Diamond Bar, CA 91765-2571

(909) 861-6227

District: Walnut Valley Unified

Students who attend Chaparral Middle usually attend:

High:

Diamond Bar High

Feeder schools for Chaparral Middle:

Elementary:	Evergreen Elementary
	Maple Hill Elementary
	Quail Summit Elementary

Racial breakdown:

Asian:

77.5%

Hispanic:

14.5%

White:

3.6%

See top rated California middle schools

Compare Chaparral Middle to nearby middle schools!

At a glance

▬ Ranking trend: Holding steady — 95th percentile in 2013 → 98th in 2025

Strengths

✓Test scores above the California average (79% vs 41% meeting standards)

✓Ranks in the top 2% of California middle schools

Worth a look

!Some student groups rank well below the school's overall statewide standing

!Large classes — about 28 students per teacher

Students meeting standards (2024-2025) ?

This school79%

District avg72%

California avg41%

60^th of 2,761

California public middle schools ?

Top 2%▲ up 2 pts since 2015

See the entire ranking list of California Middle Schools →

★★★★★

SchoolDigger rating ?

1^st of 3Middle Schools in the Walnut Valley Unified

81^st of 1,543Walnut Valley Unified among California districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	97.6	60 of 2761	97.8%	★★★★★
2024	98.0	49 of 2783	98.2%	★★★★★
2023	97.8	61 of 2781	97.8%	★★★★★
2022	97.5	71 of 2740	97.4%	★★★★★
2019	95.7	106 of 2715	96.1%	★★★★★
2018	96.0	90 of 2480	96.4%	★★★★★
2017	95.9	93 of 2508	96.3%	★★★★★
2016	94.0	123 of 2497	95.1%	★★★★★
2015	94.5	114 of 2477	95.4%	★★★★★
2013	88.3	115 of 2379	95.2%	★★★★★
2012	87.3	141 of 2259	93.8%	★★★★★
2011	89.0	113 of 2236	94.9%	★★★★★
2010	89.4	109 of 2179	95.0%	★★★★★
2009	88.0	135 of 2063	93.5%	★★★★★
2008	86.1	174 of 2005	91.3%	★★★★★
2007	90.0	128 of 1999	93.6%	★★★★★
2006	93.3	63 of 1804	96.5%	★★★★★
2005	92.2	75 of 1777	95.8%	★★★★★
2004	90.4	111 of 1769	93.7%	★★★★★

African American

Year	Avg score	Statewide rank	California percentile	Rating
2019	97.6	12 of 643	98.1%	★★★★★
2018	99.4	3 of 600	99.5%	★★★★★

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	79.5	131 of 739	82.3%	★★★★☆
2024	78.4	136 of 743	81.7%	★★★★☆
2023	79.1	119 of 715	83.4%	★★★★☆
2022	78.2	143 of 733	80.5%	★★★★☆
2019	73.5	206 of 745	72.3%	★★★★☆
2018	79.3	115 of 700	83.6%	★★★★☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	92.3	71 of 1531	95.4%	★★★★★
2019	77.1	211 of 1491	85.8%	★★★★☆
2018	78.6	181 of 1369	86.8%	★★★★☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	99.3	8 of 1478	99.5%	★★★★★
2023	88.9	60 of 1521	96.1%	★★★★★
2022	91.8	50 of 1540	96.8%	★★★★★
2019	97.1	28 of 1442	98.1%	★★★★★
2018	99.1	20 of 1364	98.5%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	96.6	68 of 2533	97.3%	★★★★★
2024	97.1	59 of 2551	97.7%	★★★★★
2023	96.6	84 of 2531	96.7%	★★★★★
2022	96.0	96 of 2509	96.2%	★★★★★
2019	94.3	119 of 2380	95.0%	★★★★★
2018	95.7	73 of 2262	96.8%	★★★★★

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	91.5	133 of 2395	94.4%	★★★★★
2024	92.7	108 of 2388	95.5%	★★★★★
2023	86.5	198 of 2374	91.7%	★★★★★
2022	85.9	195 of 2359	91.7%	★★★★★
2019	89.6	144 of 2213	93.5%	★★★★★
2018	90.2	134 of 2072	93.5%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	99.4	14 of 2542	99.4%	★★★★★
2024	99.3	19 of 2579	99.3%	★★★★★
2023	99.3	12 of 2531	99.5%	★★★★★
2022	99.1	22 of 2458	99.1%	★★★★★
2019	96.6	43 of 2369	98.2%	★★★★★
2018	96.9	44 of 2230	98.0%	★★★★★

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	97.4	60 of 2534	97.6%	★★★★★
2024	98.1	45 of 2552	98.2%	★★★★★
2023	98.0	46 of 2538	98.2%	★★★★★
2022	97.8	53 of 2527	97.9%	★★★★★
2019	95.9	99 of 2407	95.9%	★★★★★
2018	95.4	105 of 2273	95.4%	★★★★★

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2025	62.0	283 of 726	61.0%	★★★☆☆
2024	77.9	139 of 701	80.2%	★★★★☆
2023	83.1	87 of 677	87.1%	★★★★☆
2022	81.5	94 of 665	85.9%	★★★★☆
2019	85.8	43 of 554	92.2%	★★★★★
2018	77.2	94 of 462	79.7%	★★★★☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2025	95.1	50 of 1566	96.8%	★★★★★
2024	82.3	162 of 1552	89.6%	★★★★☆
2023	79.9	166 of 1531	89.2%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	72.1	386 of 1520	74.6%	★★★★☆
2024	73.4	361 of 1537	76.5%	★★★★☆
2023	70.0	416 of 1543	73.0%	★★★★☆
2022	76.6	304 of 1555	80.5%	★★★★☆
2019	71.2	428 of 1602	73.3%	★★★★☆
2018	67.5	482 of 1496	67.8%	★★★☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

English Language Learner (2024)99th percentile~ school

Low Socio Economic Status (2025)99th percentile~ school

African American (2019)98th percentile~ school

Male (2025)98th percentile~ school

Female (2025)97th percentile~ school

Special Education (2025)97th percentile~ school

Disabled (2022)95th percentile~ school

Hispanic (2025)94th percentile-3 vs school

Asian (2025)82nd percentile-16 vs school

White (2025)75th percentile-23 vs school

Multi-racial (2025)61st percentile-37 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy83%+34 vs state

Mathematics80%+43 vs state

Science66%+34 vs state

★

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Schools Near Chaparral Middle

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CSA Spanish Overall (2025)			CSA Spanish Listening (2025)			CSA Spanish Writing (2025)			CSA Spanish Reading (2025)			CAST Science (2025)		Smarter Balanced Assessments English Language Arts/Literacy (2025)				Smarter Balanced Assessments Mathematics (2025)				Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CSA Spanish Overall 7th Grade	CSA Spanish Overall 8th Grade	CSA Spanish Overall All Grades	CSA Spanish Listening 7th Grade	CSA Spanish Listening 8th Grade	CSA Spanish Listening All Grades	CSA Spanish Writing 7th Grade	CSA Spanish Writing 8th Grade	CSA Spanish Writing All Grades	CSA Spanish Reading 7th Grade	CSA Spanish Reading 8th Grade	CSA Spanish Reading All Grades	CAST Science 8th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Chaparral Middle	Public	6-8	1405 South Spruce Tree Dr.	Diamond Bar	91765	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 861-6227	1,349	48	28.2	24.6%	48 (3.6%)	16 (1.2%)	195 (14.5%)	1,045 (77.5%)	0 (0.0%)	0 (0.0%)	45 (3.3%)	97.6	60^th of 2761 public middle schools	97.8%		98	49^th of 2783 public middle schools	98.2%	11													66.3	66.3	79.3	88.5	80.9	82.9	76.6	86.3	78.2	80.3	$14,509	$14,034	$475
Lorbeer Middle	Public	7-8	501 Diamond Bar Blvd.	Diamond Bar	91765	Los Angeles County	Pomona Unified	No	(n/a)	No	(n/a)	(909) 397-4527	688	29	24.0	74.3%	32 (4.7%)	25 (3.6%)	505 (73.4%)	90 (13.1%)	2 (0.3%)	1 (0.1%)	33 (4.8%)	48.4	1228^th of 2761 public middle schools	55.5%		46.9	1249^th of 2783 public middle schools	55.1%	21	7.1	5.6	6.5	14.3	11.1	13.0	14.3	5.6	10.9	7.1	5.6	6.5	28.3	28.3		49.3	45.4	47.4		31.3	30.0	30.6	$22,294	$21,034	$1,260
South Pointe Middle	Public	6-8	20671 Larkstone Dr.	Walnut	91789	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 595-8171	979	38	25.5	25.0%	19 (1.9%)	4 (0.4%)	156 (15.9%)	762 (77.8%)	1 (0.1%)	3 (0.3%)	34 (3.5%)	97.1	79^th of 2761 public middle schools	97.1%		96.9	95^th of 2783 public middle schools	96.6%	16													67.3	67.3	79.4	80.6	79.3	79.8	77.8	79.0	79.1	78.6	$15,897	$15,164	$733
Suzanne Middle	Public	6-8	525 Suzanne Rd.	Walnut	91789	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 594-1657	1,190	45	26.3	24.5%	51 (4.3%)	7 (0.6%)	293 (24.6%)	779 (65.5%)	0 (0.0%)	1 (0.1%)	59 (5.0%)	92.8	204^th of 2761 public middle schools	92.6%		94	189^th of 2783 public middle schools	93.2%	15													63.6	63.6	70.9	72.4	76.5	73.3	63.8	65.5	62.0	63.7	$16,577	$16,068	$509
Canyon Hills Junior High	Public	7-8	2500 Madrugada Dr.	Chino Hills	91709	San Bernardino County	Chino Valley Unified	No	(n/a)	No	(n/a)	(909) 464-9938	1,070	40	26.7	46.8%	128 (12.0%)	28 (2.6%)	311 (29.1%)	554 (51.8%)	0 (0.0%)	2 (0.2%)	47 (4.4%)	93.7	187^th of 2761 public middle schools	93.2%		95.1	149^th of 2783 public middle schools	94.6%	38													60.4	60.4		78.2	73.9	76.1		68.2	59.8	64.2	$16,952	$16,028	$924
Alvarado Intermediate	Public	7-8	1901 South Desire Ave.	Rowland Heights	91748	Los Angeles County	Rowland Unified	No	(n/a)	No	(n/a)	(626) 964-2358	624	28	22.4	79.8%	9 (1.4%)	3 (0.5%)	299 (47.9%)	290 (46.5%)	1 (0.2%)	2 (0.3%)	20 (3.2%)	56.4	989^th of 2761 public middle schools	64.2%		60.7	867^th of 2783 public middle schools	68.8%	122													28.9	28.9		51.5	41.4	46.0		43.6	40.7	42.0	$15,835	$15,378	$457
Marshall Middle	Public	6-8	1921 Arroyo Ave.	Pomona	91768	Los Angeles County	Pomona Unified	No	(n/a)	No	(n/a)	(909) 397-4532	249	16	15.5	96.4%	5 (2.0%)	6 (2.4%)	233 (93.6%)	4 (1.6%)	0 (0.0%)	1 (0.4%)	0 (0.0%)	32.6	1735^th of 2761 public middle schools	37.2%		34.6	1648^th of 2783 public middle schools	40.8%	87													23.2	23.2		46.2	38.3	42.5		13.8	19.8	16.6	$54,720	$53,274	$1,446
Giano Intermediate	Public	7-8	3223 South Giano Ave.	West Covina	91792	Los Angeles County	Rowland Unified	No	(n/a)	No	(n/a)	(626) 965-2461	463	23	19.9	94.6%	7 (1.5%)	4 (0.9%)	422 (91.1%)	21 (4.5%)	0 (0.0%)	0 (0.0%)	8 (1.7%)	33.2	1708^th of 2761 public middle schools	38.1%		35	1626^th of 2783 public middle schools	41.6%	82													26.9	26.9		30.3	41.8	35.8		21.9	23.6	22.7	$17,144	$16,290	$854
Robert O. Townsend Junior High	Public	7-8	15359 Ilex Dr.	Chino Hills	91709	San Bernardino County	Chino Valley Unified	No	(n/a)	No	(n/a)	(909) 591-2161	905	37	24.4	54.8%	138 (15.2%)	34 (3.8%)	375 (41.4%)	317 (35.0%)	0 (0.0%)	3 (0.3%)	37 (4.1%)	91.1	248^th of 2761 public middle schools	91.0%		87.5	335^th of 2783 public middle schools	88.0%	87													58.9	58.9		69.8	70.4	70.1		59.3	65.4	62.3	$18,255	$17,330	$925
Simons Middle	Public	6-8	900 East Franklin Ave.	Pomona	91766	Los Angeles County	Pomona Unified	No	(n/a)	No	(n/a)	(909) 397-4544	578	27	21.3	95.8%	8 (1.4%)	7 (1.2%)	546 (94.5%)	14 (2.4%)	0 (0.0%)	1 (0.2%)	2 (0.3%)	19.7	2240^th of 2761 public middle schools	18.9%		22.5	2146^th of 2783 public middle schools	22.9%	94													13.0	13.0	22.2	28.1	30.8	28.3	14.4	14.7	19.4	16.7	$11,637	$10,322	$1,315

Frequently Asked Questions about Chaparral Middle

What is the racial makeup of Chaparral Middle?

Students at Chaparral Middle are 77% Asian, 14% Hispanic, 4% White, 3% Two or more races, 1% African American.

How many students attend Chaparral Middle?

In the 2024-25 school year, 1,349 students attended Chaparral Middle.

Is Chaparral Middle a good school?

Yes! Chaparral Middle is one of the best middle schools in the state. It ranks 60^th of 2761 California middle schools.

What district is Chaparral Middle in?

Walnut Valley Unified

What high school do graduates of Chaparral Middle attend?

Students who attend Chaparral Middle usually go on to attend Diamond Bar High

Rate Chaparral Middle!

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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.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries 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.