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Quail Summit Elementary

Public Grades K-5

318^th

SchoolDigger Rank ?

of 5,817 California Elementary Schools

Better than 95% of California elementary schools

Summary

Quail Summit Elementary is a K–5 school in Diamond Bar, California, with 696 students in Walnut Valley Unified. Its latest results show strong performance overall, but the clearest distinction is that math and science are stronger than ELA: proficiency is 81% in math and 76% in science, compared with 75% in ELA.

Compared with other nearby K–5 schools in the district, Quail ranks first in math and science and second in ELA. It is about 1 percentage point below the district in ELA, but 8 points above in math and 12 points above in science. Compared with California, it is ahead by 26 points in ELA, 42 in math and 40 in science. Results vary by grade, too: fourth-grade ELA is a particular concern at 69%, compared with 82% in fifth grade.

ELA and math have declined from their 2022–2023 results: ELA fell 7 percentage points and math 3, while their leads over the state narrowed. Science rebounded by 6 points in the latest year after a drop, reaching its highest result in the four years reported. SchoolDigger ranks Quail 317th of 5,804 California schools, at the 95th percentile with five stars; its percentile has eased from 98 in 2022–2023 and 2023–2024. SchoolDigger’s ranking for how well the school serves Asian students is notably lower, at the 64th percentile in 2025–2026, down from 81 in 2023–2024. The 2024–2025 student-teacher ratio was 25.3, toward the high end of the nearby-school range of 18.5–27.1. In 2024–2025, 25% of students were free/reduced lunch eligible, the lowest reported share among nearby schools with the same measure and year.

696

Students ?

25.3

Student/teacher ratio ?

$14,514

Per pupil spending ?

25.0%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

≥ 99%

Kindergartners with all required immunizations (2024-25)

23330 East Quail Summit Dr.
Diamond Bar, CA 91765-3031

(909) 861-3004

District: Walnut Valley Unified

Students who attend Quail Summit Elementary usually attend:

Middle:	Chaparral Middle
High:	Diamond Bar High

Racial breakdown:

Asian:

74.3%

Hispanic:

16.1%

Two or more races:

4.9%

See top rated California elementary schools

Compare Quail Summit Elementary to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 96th percentile in 2015 → 95th in 2026

Strengths

✓Test scores above the California average (77% vs 42% meeting standards)

✓Ranks in the top 5% of California elementary schools

Worth a look

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

!Large classes — about 25 students per teacher

Students meeting standards (2025-2026) ?

This school77%

District avg72%

California avg42%

318^th of 5,817

California public elementary schools ?

Top 5%▼ down 3 pts since 2016

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

3^rd of 9Elementary Schools in the Walnut Valley Unified

81^st of 1,530Walnut 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
2026	95.1	318 of 5817	94.5%	★★★★★
2025	95.5	284 of 5857	95.2%	★★★★★
2024	97.2	142 of 5869	97.6%	★★★★★
2023	97.5	144 of 5859	97.5%	★★★★★
2022	96.1	276 of 5883	95.3%	★★★★★
2019	94.8	303 of 5789	94.8%	★★★★★
2018	95.2	269 of 5662	95.2%	★★★★★
2017	95.8	264 of 5692	95.4%	★★★★★
2016	97.0	154 of 5614	97.3%	★★★★★
2015	96.8	203 of 5611	96.4%	★★★★★
2013	94.0	181 of 5530	96.7%	★★★★★
2012	93.9	155 of 5390	97.1%	★★★★★
2011	93.2	240 of 5377	95.5%	★★★★★
2010	90.8	402 of 5314	92.4%	★★★★★
2009	91.4	395 of 5193	92.4%	★★★★★
2008	90.4	452 of 5113	91.2%	★★★★★
2007	91.8	422 of 5113	91.7%	★★★★★
2006	93.9	272 of 4818	94.4%	★★★★★
2005	92.0	379 of 4822	92.1%	★★★★★
2004	92.1	393 of 4809	91.8%	★★★★★

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2026	68.7	431 of 1210	64.4%	★★★☆☆
2025	70.8	376 of 1203	68.7%	★★★☆☆
2024	77.7	226 of 1205	81.2%	★★★★☆
2023	77.0	225 of 1190	81.1%	★★★★☆
2022	76.2	245 of 1154	78.8%	★★★★☆
2019	73.1	299 of 1149	74.0%	★★★★☆
2018	78.2	176 of 1071	83.6%	★★★★☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	73.6	379 of 2227	83.0%	★★★★☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	92.1	91 of 3162	97.1%	★★★★★
2023	99.1	27 of 3245	99.2%	★★★★★
2022	97.8	62 of 3311	98.1%	★★★★★
2019	95.7	89 of 3275	97.3%	★★★★★
2018	91.1	164 of 3246	94.9%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	95.3	229 of 5581	95.9%	★★★★★
2025	94.3	313 of 5597	94.4%	★★★★★
2024	96.6	144 of 5612	97.4%	★★★★★
2023	95.7	226 of 5609	96.0%	★★★★★
2022	92.7	471 of 5635	91.6%	★★★★★
2019	90.8	510 of 5492	90.7%	★★★★★
2018	92.6	390 of 5413	92.8%	★★★★★

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	93.8	198 of 5094	96.1%	★★★★★
2025	91.1	298 of 5107	94.2%	★★★★★
2024	93.8	214 of 5107	95.8%	★★★★★
2023	94.0	199 of 5087	96.1%	★★★★★
2022	77.3	845 of 5084	83.4%	★★★★☆
2019	85.8	473 of 4963	90.5%	★★★★★
2018	91.5	249 of 4830	94.8%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	96.5	116 of 5423	97.9%	★★★★★
2025	98.4	56 of 5460	99.0%	★★★★★
2024	99.1	50 of 5517	99.1%	★★★★★
2023	99.3	27 of 5363	99.5%	★★★★★
2022	99.3	46 of 5264	99.1%	★★★★★
2019	98.9	17 of 5173	99.7%	★★★★★
2018	98.8	24 of 5084	99.5%	★★★★★

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	93.1	379 of 5603	93.2%	★★★★★
2025	95.1	258 of 5628	95.4%	★★★★★
2024	96.7	142 of 5643	97.5%	★★★★★
2023	97.7	84 of 5638	98.5%	★★★★★
2022	97.2	137 of 5663	97.6%	★★★★★
2019	95.8	188 of 5510	96.6%	★★★★★
2018	95.9	200 of 5431	96.3%	★★★★★

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)

Low Socio Economic Status (2026)98th percentile+3 vs school

English Language Learner (2024)97th percentile~ school

Hispanic (2026)96th percentile~ school

Female (2026)96th percentile~ school

Male (2026)93rd percentile~ school

Disabled (2022)83rd percentile-12 vs school

Asian (2026)64th percentile-30 vs school

By subject vs California (2025-2026) ?

Mathematics81%+42 vs state

Science76%+40 vs state

English Language Arts/Literacy75%+26 vs state

★

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Schools Near Quail Summit Elementary

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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 Vaccination Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CAST Science (2026)		Smarter Balanced Assessments English Language Arts/Literacy (2026)					Smarter Balanced Assessments Mathematics (2026)					Vaccination (2024-25)		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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics All Grades	Vaccination: Kindergartners with all required immunizations	Vaccination: Exemption rate	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Quail Summit Elementary	Public	K-5	23330 East Quail Summit Dr.	Diamond Bar	91765	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 861-3004	696	28	25.3	25.0%	22 (3.2%)	11 (1.6%)	112 (16.1%)	517 (74.3%)	0 (0.0%)	0 (0.0%)	34 (4.9%)	95.1	318^th of 5817 public elementary schools	94.5%		95.5	284^th of 5857 public elementary schools	95.2%	34	75.5	75.5	71.7	69.4	82.2		74.8	81.3	76.4	84.2		80.7	≥ 99%		$14,514	$487	$14,027
Maple Hill Elementary	Public	K-5	1350 Maple Hill Rd.	Diamond Bar	91765	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 861-6224	556	21	27.1	27.3%	15 (2.7%)	0 (0.0%)	70 (12.6%)	445 (80.0%)	0 (0.0%)	2 (0.4%)	24 (4.3%)	96.3	207^th of 5817 public elementary schools	96.4%		97.1	142^nd of 5857 public elementary schools	97.6%	65	65.4	65.4	80.0	83.8	82.5		82.1	84.6	82.7	72.4		79.9	97%	0%	$13,928	$338	$13,590
Pantera Elementary	Public	K-6	801 Pantera Dr.	Diamond Bar	91765	Los Angeles County	Pomona Unified	No	(n/a)	No	(n/a)	(909) 397-4475	512	22	23.6	47.9%	23 (4.5%)	7 (1.4%)	98 (19.1%)	349 (68.2%)	0 (0.0%)	0 (0.0%)	35 (6.8%)	95.9	245^th of 5817 public elementary schools	95.8%		94.8	353^rd of 5857 public elementary schools	94.0%	108	64.9	64.9	76.3	91.9	78.9	82.6	82.4	83.3	94.7	78.1	58.7	80.9	≥ 98%		$16,068	$1,398	$14,670
Evergreen Elementary	Public	K-5	2450 Evergreen Springs Dr.	Diamond Bar	91765	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 594-1041	709	28	24.9	25.8%	22 (3.1%)	8 (1.1%)	146 (20.6%)	499 (70.4%)	0 (0.0%)	2 (0.3%)	32 (4.5%)	89.1	700^th of 5817 public elementary schools	88.0%		92.2	534^th of 5857 public elementary schools	90.9%	166	61.7	61.7	61.5	68.9	75.5		69.0	71.5	62.5	69.5		68.0	≥ 99%		$14,298	$586	$13,712
Armstrong Elementary	Public	K-6	22750 Beaverhead Dr.	Diamond Bar	91765	Los Angeles County	Pomona Unified	No	(n/a)	No	(n/a)	(909) 397-4563	251	14	18.5	66.9%	25 (10.0%)	16 (6.4%)	150 (59.8%)	37 (14.7%)	0 (0.0%)	0 (0.0%)	23 (9.2%)	40.6	3190^th of 5817 public elementary schools	45.2%		42.4	3044^th of 5857 public elementary schools	48.0%	146	36.8	36.8	36.4	44.0	62.2	33.3	45.4	33.3	16.0	23.7	29.2	25.8	94%	0%	$22,823	$1,320	$21,503
Golden Springs Elementary	Public	K-6	245 South Ballena Dr.	Diamond Bar	91765	Los Angeles County	Pomona Unified	No	(n/a)	No	(n/a)	(909) 397-4596	388	16	25.0	72.2%	24 (6.2%)	14 (3.6%)	267 (68.8%)	61 (15.7%)	0 (0.0%)	0 (0.0%)	22 (5.7%)	62.7	1947^th of 5817 public elementary schools	66.5%		60.7	2029^th of 5857 public elementary schools	65.4%	82	37.3	37.3	57.4	58.5	60.0	52.9	57.0	57.4	43.4	23.9	45.7	41.8	≥ 95%		$16,569	$1,348	$15,221
Castle Rock Elementary	Public	K-5	2975 Castle Rock Rd.	Diamond Bar	91765	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 598-5006	684	26	26.1	26.6%	20 (2.9%)	10 (1.5%)	132 (19.3%)	480 (70.2%)	1 (0.1%)	4 (0.6%)	37 (5.4%)	86.3	847^th of 5817 public elementary schools	85.4%		90.9	613^th of 5857 public elementary schools	89.5%	234	52.4	52.4	70.1	64.2	64.3		66.0	68.5	71.8	64.1		67.8	≥ 99%		$14,763	$422	$14,341
Walnut Elementary	Public	K-5	841 South Glenwick	Walnut	91789	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 594-1820	706	27	25.8	25.2%	8 (1.1%)	2 (0.3%)	104 (14.7%)	550 (77.9%)	0 (0.0%)	2 (0.3%)	40 (5.7%)	93.3	459^th of 5817 public elementary schools	92.1%		94.2	382^nd of 5857 public elementary schools	93.5%	77	63.6	63.6	65.9	69.8	81.0		72.1	82.1	79.0	73.7		78.3	≥ 99%		$15,138	$554	$14,584
Ranch Hills Elementary	Public	K-6	2 Trabuco Pl.	Pomona	91766	Los Angeles County	Pomona Unified	No	(n/a)	No	(n/a)	(909) 397-4978	449	22	20.4	63.5%	22 (4.9%)	35 (7.8%)	283 (63.0%)	77 (17.1%)	1 (0.2%)	1 (0.2%)	30 (6.7%)	64.7	1843^rd of 5817 public elementary schools	68.3%		61.8	1976^th of 5857 public elementary schools	66.3%	133	35.6	35.6	45.3	50.0	57.6	78.7	57.2	50.9	48.2	39.0	51.1	47.0	≥ 98%		$15,884	$1,342	$14,542
Vejar Elementary	Public	K-5	20222 Vejar Rd.	Walnut	91789	Los Angeles County	Walnut Valley Unified	No	(n/a)	No	(n/a)	(909) 594-1434	631	27	23.0	32.2%	23 (3.6%)	5 (0.8%)	197 (31.2%)	383 (60.7%)	0 (0.0%)	0 (0.0%)	23 (3.6%)	77.5	1246^th of 5817 public elementary schools	78.6%		87	827^th of 5857 public elementary schools	85.9%	419	52.6	52.6	53.0	58.6	60.8		57.6	62.5	66.1	48.7		59.0	86%	0%	$15,209	$709	$14,500

Frequently Asked Questions about Quail Summit Elementary

What is the racial makeup of Quail Summit Elementary?

Students at Quail Summit Elementary are 74% Asian, 16% Hispanic, 5% Two or more races, 3% White, 2% African American.

How many students attend Quail Summit Elementary?

In the 2024-25 school year, 696 students attended Quail Summit Elementary.

Is Quail Summit Elementary a good school?

Yes. Quail Summit Elementary ranks in the top 5.5% of California elementary schools.

What schools do graduates of Quail Summit Elementary attend?

Students who attend Quail Summit Elementary usually go on to attend:

Middle : Chaparral Middle
High : Diamond Bar High

What district is Quail Summit Elementary in?

Walnut Valley Unified

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Latest California data All new data »

2024–25 school spending data (updated)NewNov 2, 2026

2013–14 through 2024–25 immunization rates (updated)Oct 19, 2026

2025–26 attendance data, dropout rates & graduation ratesOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresOct 15, 2026

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.